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Copyright of Caldasia is the property of Universidad Nacional de Colombia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Augusto Weberbauer publicó en 1922 el primer Mapa de Vegetación del Perú, en el que representó y describió 25 formaciones vegetales, las cuales agrupó en seis categorías, considerando ámbitos altitudinales definidos en función de su temperatura. Dentro de esas categorías están las formaciones microtermales que, generalmente, se encuentran por encima de los 3400 msnm y tienen amplia distribución latitudinal a lo largo de los Andes peruanos. En aras de revalorizar aquel mapa histórico, en primer lugar, se presentan los resultados de la digitalización y estimación de la extensión de las cuatro formaciones vegetales microtermales identificadas por Weberbauer y, en segundo lugar, se exponen los hallazgos del contraste cartográfico realizado entre dichas formaciones microtermales y las coberturas vegetales altoandinas clasificadas en el mapa más actual en el Perú sobre esta temática. En ese sentido, se aprecia que el investigador alemán cartografió una extensión de 183.445,30 km² para el conjunto de las cuatro formaciones vegetales microtermales: formaciones típicas altoandinas (61,67%); estepa herbácea microtérmica (17,93%); tolar microtérmico (17,47%); los glaciares y la nieve perpetua (2,93%). Asimismo, en la comparación cartográfica se observó que el 63,92% del territorio que actualmente ocupan las coberturas vegetales altoandinas del Perú coincide con lo cartografiado e identificado por Weberbauer como formaciones vegetales microtermales. Estos resultados contribuyen a comprender la evolución de este tipo de formaciones vegetales, las cuales están sufriendo una fuerte presión por la sumatoria del cambio climático y los impactos antrópicos.

Augusto Weberbauer published, in 1922, the first vegetation map of Peru, where he showed and described twenty-five plant formations, grouped into six categories, considering altitudinal ranges defined according to their temperature. Within these categories are the microthermal formations that are generally found above 3400 masl and have a wide latitudinal distribution throughout the Peruvian Andes. To revalue that historical map, we present, firstly, the results of digitalization and estimation of extension of the four microthermal vegetation formations identified by Weberbauer, and secondly, the findings of cartographic contrasting between these microthermal formations, and the high Andean vegetation covers as classified in the most updated map on this subject. Weberbauer mapped an area of 183.445,30 km² for the four microthermal vegetation formations: typical high Andean formations (61,67%); microthermal herbaceous steppe (17,93%); microthermal tolar (17,47%); glaciers and perpetual snow (2,93%). Likewise, a cartographic comparison showed that 63,92% of the territory currently occupied by high Andean vegetation cover in Peru is coincident with that mapped by Weberbauer as microthermal vegetation formations. These results contribute to the understanding of the evolution of these formations, which are under climate change and anthropogenic pressures. [ABSTRACT FROM AUTHOR]

Understanding the evolutionary dynamics of forest islands in the landscape can inform conservation strategies for peatland ecosystems in tropical mountains and specify how different elements interact in landscape formation. We studied a peatland ecosystem at the headwaters of the Preto River, on a plateau surface known as Chapadão do Couto, in the Rio Preto State Park (São Gonçalo do Rio Preto, MG) at an altitude of 1,600 m. We analyzed two forest islands with predominantly semideciduous seasonal forest, one entirely within the peatland and the other at the transition to mesic grassland. The purpose was to investigate variations in the amount and fractioning of litter in each forest fragment at different times of the year, to show responses of the forest to the different conditions of insertion in the peatland and how this affects the dynamics of functional balance of the ecosystem. Four sampling of litter were made within the forest islands (Jun./2018 to Feb./2019) by the aid of 1 m² collectors made of shade cloth, at a height of 50 cm. We observed a dynamic of interactions with distinct patterns among the forest islands, and also verified variations in the litter with respect to intensity and quantity of deposition, dynamics of deciduousness, this more associated with soil moisture conditions than the temperature at the surface and other features of the soil organic matter. [ABSTRACT FROM AUTHOR]

This article addresses the existing relations between a traditional community and the biodiversity of the Atlantic Rainforest, with emphasis on the knowledge, use and handling of food plants. The community which was studied, Guarda do Embaú, municipal area of Palhoça (SC), is located in the surroundings of a Preservation Unit, the State Park of Serra do Tabuleiro. The ethnobotanical survey of the food species was conducted through semi-structured interviews with key contributors, as well as the description of the phytophysiognomy and mapping of the areas where the species were harvested. Nine interviews were carried out, ascertaining the use of 23 species, being Myrtaceae and Arecaceae the most notable botanical family. The part of the plant most cited for consumption was the fruit. [ABSTRACT FROM AUTHOR]

Este artigo trata das relações existentes entre uma comunidade tradicional e a biodiversidade da Mata Atlântica, com enfoque no conhecimento, uso e manejo de plantas alimentícias. A comunidade estudada, Guarda do Embaú, município de Palhoça (SC), localiza-se no entorno de uma Unidade de Conservação, o Parque Estadual da Serra do Tabuleiro. O levantamento etnobotânico das espécies alimentícias foi realizado por meio de entrevistas semi-estruturadas com colaboradores-chave, além da descrição das fitofisionomias e mapeamento das áreas de coleta das espécies. Foram realizadas nove entrevistas, constatando o uso de 23 espécies, sendo Myrtaceae e Arecaceae as famílias botânicas mais expressivas. A parte da planta mais citada para consumo foi o fruto.

Introducción y objetivos: Las sierras de Ambato son un cordón montañoso situado en la provincia de Catamarca, Argentina. Cuentan con unos 450 km2ocupados por comunidades vegetales de alta montaña, que no cuentan con estudios exhaustivos. Con el objetivo de contribuir al conocimiento de la diversidad vegetal de estos ambientes, se presenta un listado de plantas vasculares actualizado y se discuten sus posibles conexiones biogeográficas. M&M: Se realizaron cuatro expediciones al área de estudio. Se colectaron ejemplares desde los 3000 msnm hasta la cumbre. El material se identificó siguiendo los procedimientos convencionales y permanece depositado en el Herbario de la Universidad Nacional de Catamarca (UNCAT). Se consideró la información florística ya publicada de la zona y la disponible on line para completar el listado. Resultados & Conclusiones: Se colectaron 687 ejemplares de herbario. De la combinación de la información obtenida en las expediciones, la revisión bibliográfica y bases de datos on line se obtuvo un listado de 260 especies para el piso altitudinal relevado, correspondientes a 138 géneros y 50 familias. Se incluyen 2 nuevos registros para la flora de Catamarca y 15 nuevos registros para el área de estudio. Los datos hacen suponer que el área, al igual que las cumbres de otros cordones similares de las Sierras Pampeanas, debería incluirse en las provincias fitogeográficas puneña y altoandina. Las comunidades vegetales de alta montaña de Sudamérica tropical y subtropical son vulnerables al aumento de la temperatura media global, lo que justifica la importancia del registro y monitoreo permanente de su diversidad.

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La distribución geográfica de las plantas, su frecuencia y abundancia constituyen importantes resortes para conocer la biodiversidad. A estas propiedades conviene unir la temporalidad vegetativa para mejorar el conocimiento de sus ocurrencias geográficas. En este trabajo se analizan estas cuestiones a partir de la comparación de información florística detallada geográficamente en dos cuadrados UTM de 10×10 km (región natural de la Alcarria, centro de España). Se aplica la metodología de índices de ocupación de la flora previamente ensayada en estudios corológicos, que implica diferenciar dos grupos florísticos: de visibilidad permanente y no permanente durante el ciclo anual. Se exponen y comparan los datos generales sobre frecuencia y abundancia relativa de ambos grupos, así como una muestra de la distribución de doce plantas no permanentes en cuatro resoluciones espaciales (1, 4, 25 y 100 km²). Los resultados permiten comprobar que se mejora la confiabilidad corológica al derivar los datos de la resolución mayor a las menores, pese a perder detalle geográfico; que las clasificaciones de las plantas no permanentes con mayor frecuencia y con mayor abundancia relativa son parecidas, pero difieren; y que el uso de cuadrículas de 2 km de lado resulta apropiado para representar sus distribuciones a escala local.

The present work aimed to treat and discuss the conceptualization of Biogeography, as one of the fields of study of Geography; of Phytogeography, sub-area of Biogeography, and of Phytosociology, as a sub-branch of Phytogeography, demonstrating the close connection between these and geographic science. As methodological processes consisted of literature review on the subject, document analysis on electronic sites, elaboration of a schema and explanatory table. The research points out that Physical Geography created subareas that aimed to understand natural phenomena in integral parts, Biogeography, for example, branched out into distinct parts such as Phytogeography and Phytosociology to understand the spatialization and organization of plant communities, and above all, characterize them. [ABSTRACT FROM AUTHOR]

resumo A partir de meados do século XX, cresceu significativamente o interesse em se compreender a dinâmica das vegetações em respostas às mudanças climáticas do Último Máximo Glacial - UMG (18 mil anos atrás). Nesse contexto, uma paisagem pode ser fruto de mudanças recentes ambientais ou relíquias de condições ainda mais remotas. Isso pode determinar, inclusive, o grau de complexidade e diversificação da paisagem. Diversos pesquisadores têm proposto modelos para explicar a cobertura da vegetação brasileira sob as condições do UMG desde a década de 1960, porém, o recente avanço dos modelos climáticos globais tem proporcionado novas perspectivas para uma reconstrução mais fiel das condições pretéritas. Nesse sentido, aqui discutimos sobre teorias biogeográficas formuladas e modificadas ao longo dos últimos 60 anos de estudos sobre a reconstrução das vegetações do Brasil para o UMG.

El autor hace consideraciones y brinda más datos detallados sobre las delimitaciones y transiciones entre estas regiones botánicas de Argentina.

El autor ha realizado frecuentes viajes a esta región, estudiando con detenimiento su vegetación. En un mapa ha anotado las diferentes formaciones y con fotografías ha registrado sus aspectos.

El presente artículo es una recopilación de los trabajos que estudian las especies de plantas vasculares de Argentina, desde la época de Linneo hasta 1937 inclusive. Consta de dos partes: la primera es taxonómica, cuyas familias se ordenan después de Engler u. Diels, Syllabus; y la segunda es fitogeográfica, que se acompaña de un mapa fitogeográfico en el que se señalan los límites de las provincias botánicas, interesantes para el estudio de la vegetación argentina.

Este trabalho objetivou avaliar o padrão atual de distribuição de Caatinga densa, identificando onde estão seus maiores fragmentos, através de procedimentos cartográficos e estatísticos no município de Caicó-RN. A partir de NDVI, gerou-se o mapeamento da cobertura vegetal e, em seguida, delimitou-se três intervalos de cotas altimétricas possibilitando-se traçar um perfil gradual. Os fragmentos de Caatinga densa foram submetidos a ANOVA e teste Tukey, estabelecendo uma significância de p

Copyright of Ciência Florestal (01039954) is the property of Ciencia Florestal and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Resumo O levantamento taxonômico da Flora do estado do Rio de Janeiro revelou a presença de dois dos cinco gêneros que compõem a família de distribuição pantropical Trigoniaceae. O presente estudo teve como objetivo conhecer, divulgar e caracterizar está representatividade na região. Como metodologia destaca-se o levantamento das obras principais, o exame das coleções nos Herbários; trabalho de campo em áreas de ocorrência para registro; identificação de espécies utilizando-se da metodologia clássica além da confecção de ilustração das espécies típicas. Os resultados apontaram que atualmente, está entidade botânica neste estado, está representada por onze táxons classificados nos gêneros Trigoniodendron que é monotípico, arbóreo, de filotaxia alternada; e os demais táxons em Trigonia. Caracterizado como arbustos e lianas, com filotaxia oposta. Ambos (Trigoniodendron e Trigonia) habitam a floresta ombrófila densa; o segundo também ocupa áreas de restingas e formações secundárias. Estes resultados corroboram com a importância dos levantamentos das floras regionais para o desenvolvimento da taxonomia vegetal.

Fir forests (Abies religiosa) in central Mexico have been subjected to strong human pressures and their richness and the geographic affinity of their flora in some regions have been poorly analyzed. Through field trips and collections of botanical specimens, the floristic composition and patterns of current geographical distribution of families, genera and species were determined of a fir forest located in the Transmexican Volcanic Belt. We obtained a list of 94 species grouped in 74 genera and 42 families. 67 % of the flora is grouped in 13 families of which Asteraceae family stands out for gather the largest number of species (24.5 %) and genera (22 %). The floristic similarity between the study area and neighboring forests increases with geographical proximity. 60 % of the families have a widespread distribution, while 50 % of the genera are exclusive of the Americas, distributed mainly from Mexico to Central America. At the species level 95.8 % have American distribution, of which 44.2 % are found only in Mexico and 36.8 % from Mexico to Central America. Among the tree species 61.4 % elements are from Mexico to Central America, while the shrubs and herbs are mainly endemic species to Mexico (60 % and 43.6 % respectively). The high proportion of endemic species in the analyzed fir forest; require continuous monitoring to ensure the generation of new alternatives for its conservation.

The caatinga has a rich phytogeographic diversity, yet the accelerated withdrawal of the original vegetation has generated degradation processes to the biome. In this sense, this article aims to analyze the relationship between climatic, pedologic and phytogeographic conditions and its role in the regeneration of the caatinga located in the Conservation Unit (UC) Municipal Park Lagoa do Frio, located in a region of Sergipe called “Alto Sertão”. To achieve this purpose, the following procedures were performed: literature review and visits to the field with the establishment of transects, longitudinal portions of 50 x 50 m, which was collected and analyzed their climatic data, soil and floristic diversity. It may be noted that the Geoenvironments analyzed are syntheses of soil and climate conditions present in the UC. Furthermore, it emphasizes the importance of the analysis of natural regeneration levels of Geoenvironments present in this scenic area, with a view to their use in a sustainable manner.

O Parque Estadual de Porto Ferreira – PEPF já foi alvo de diversos estudos florísticos, contudo, nenhum deles inventariou exclusivamente a flora epifítica vascular. Neste estudo realizamos o levantamento florístico das epífitas vasculares nos diferentes tipos de vegetação desta Unidade de Conservação e comparamos a similaridade florística com outras localidades do interior do Estado de São Paulo, em Floresta Estacional Semidecidual, Cerradão e florestas ribeirinhas. Na área, foram inventariadas as epífitas vasculares nos três tipos de vegetação: Floresta Estacional Semidecidual Aluvial – FESA, Floresta Estacional Semidecidual – FES e Cerradão – CER, através de observações e coletas durante o período de um ano. Foram registradas 66 espécies, 32 gêneros e oito famílias, sendo a FESA (46 espécies) o tipo de vegetação que apresentou a maior riqueza, seguido da FES (44) e CER (18). Orchidaceae foi a família mais rica na FESA e FES, enquanto no CER foi Bromeliaceae. A categoria ecológica mais abundante em ambas as áreas foi a das holoepífitas obrigatórias. As comparações da similaridade demonstraram que o CER do PEPF tem maior similaridade florística com o CER de Luís Antônio, situada na mesma bacia hidrográfica, enquanto as áreas de CER a oeste formaram outro grupo, e a FESA e FES demonstraram ter maior similaridade com as florestas de Botucatu. O presente estudo registrou um incremento de 42 espécies de epífitas vasculares para o PEPF, demonstrando a importância de inventários direcionados a determinados hábitos. In Porto Ferreira State Park – PEPF some floristic studies were carried out, although none of them aimed exclusively to the vascular epiphytes. In this study, we carried out the floristic survey of vascular epiphytes in three vegetational types of the PFSP: Seasonal Semideciduous Alluvial Forest – FESA, Seasonal Semideciduous Forest – FES and “Cerradão” – CE, during one year. We compared the floristic similarities with five others studies in São Paulo state conducted in Seasonal Semideciduous Forest, Cerradão and riparian forest. We recorded 66 species, 32 genera and eight families. FESA was the richest vegetational type (46 species), followed by the FES (44) and CER (18). Orchidaceae was the richest family in FESA and FES, in the CER it was Bromeliaceae. The most abundant ecological category in both areas was the obligate holoepiphytes. The CER of PEPF was more similar with CER of Luís Antônio area, located in the same hydrographic basin, while the west CER formed another group; and the FESA and FES of PEPF grouped with the Botucatu forests. Although, presented an expected richness for those vegetational types, this study recorded an increase of 42 species of vascular epiphytes for the PFSP.

Abstract The subfamily Huperzioideae of the Lycopodiaceae includes 41 species in Brazil. The genus Huperzia is represented by a single species, and Phlegmariurus has 40 species. They occur in most habitat types with a humid climate, from tropical lowland forest, to montane forest, and campo vegetation in the highlands. There are 25 endemics, more than half of the species. The present treatment includes nomenclature, descriptions and illustrations of all species, and a key for their identification. Reference collections are cited and summarize the distribution of the species and document their identity. Short discussions deal with problems of species delimitation and compare closely related species.

As a result of collections made in 61 locations during the year 2018, the number of Cladonia taxa is enlarged to 42, and ten new records of Cladonia are provided to Montenegro, Cladonia cariosa, C. coccifera, C. cyathomorpha, C. digitata, C. diversa, C. homosekikaica, C. imbricarica, C. merochlorophaea, C. novochlorophaea and C. subulata. The distribution of many taxa previously known for the territory is extended. The chemical variation and the distribution of each species are discussed. [ABSTRACT FROM AUTHOR]

As a result of collections made during the years 2009-2017, the number of Cladoniaceae species is enlarged to 27 species, providing fifteen new records to Albanian Cladonia. The distribution of many of the previously mentioned taxa is extended and the chemical variability for many of the species is discussed. Cladonia borealis, C. caespiticia, C. cervicornis, C. coccifera, C. conista, C. cryptochlorophaea, C. cyathomorpha, C. humilis, C. merochlorophaea, C. parasitica, C. peziziformis, C. polycarpoides, C. ramulosa, C. rei and C. subulata are new for Albania. [ABSTRACT FROM AUTHOR]

The subfamily Huperzioideae of the Lycopodiaceae includes 41 species in Brazil. The genus Huperzia is represented by a single species, and Phlegmariurus has 40 species. They occur in most habitat types with a humid climate, from tropical lowland forest, to montane forest, and campo vegetation in the highlands. There are 25 endemics, more than half of the species. The present treatment includes nomenclature, descriptions and illustrations of all species, and a key for their identification. Reference collections are cited and summarize the distribution of the species and document their identity. Short discussions deal with problems of species delimitation and compare closely related species. [ABSTRACT FROM AUTHOR]

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Resumen El Ensayo sobre la geografía de las plantas de Alexander von Humboldt ha trascendido como una de sus principales propuestas científicas, fundamento de lo que se conoce hoy como “biogeografía”. El origen de este concepto es difuso hasta el momento de la publicación simultánea de su obra en París y en Tübingen, en 1807. El presente artículo propone contrastar la primera versión manuscrita de este ensayo, elaborada en 1803 en Guayaquil y luego leída en 1805 en el Institut National de Paris, con la obra contemporánea del neogranadino Francisco José de Caldas, con quien convivió en Quito en el primer semestre de 1802. Summary Alexander von Humboldt´s Essay on the geography of plants has been perceived as one of his main scientific theories now referred as “biogeography”. The origin of this concept remains relatively vague up to the simultaneous publication of his work in Paris and Tübingen, in 1807. The present article intends a comparison of Humboldt´s first manuscript, signed in 1803 in Guayaquil and then read in 1805 in the Institut National de Paris, with the contemporary work of Francisco José de Caldas, with whom he lived in Quito during the first semester of 1802. Résumé L´Essai sur la géographie des plantes d´Alexander von Humboldt est à la base de sa principale théorie scientifique, généralement adressée aujourd´hui sous le nom de “biogéographie”. Néanmoins, l'origine du concept reste relativement vague jusqu'à la publication simultanée de son travail à Paris et à Tübingen, en 1807. Le présent article propose une comparaison du premier manuscrit, signé par Humboldt en 1803 à Guayaquil, puis lu en 1805 à l'Institut National de Paris, avec le travail contemporain de Francisco José de Caldas, avec qui Humboldt a vécu à Quito au cours du premier semestre de 1802.

O semiárido nordestino apresenta considerável grau de heterogeneidade fisiográfica, condicionado por uma dinâmica natural complexa. Nessa perspectiva se destaca a Bacia Hidrográfica do Rio Curu, com grande diversidade paisagística no contexto cearense, tendo em vista as inúmeras relações existentes entre os componentes ambientais. Sua área de drenagem de 8.534 km² corresponde a cerca de 6% do território estadual. Face ao exposto, o presente trabalho visa, através de um método de análise fitogeomorfológica, relacionar o relevo com a distribuição vegetal da área, subsidiando o monitoramento, gestão e conservação do ambiente. O trabalho tem como metodologia levantamento de campo, revisão bibliográfica, interpretação de imagens de sensoriamento remoto, compilação das informações obtidas e elaboração da pesquisa. Após as discussões e diagnósticos da área, foi apresentado a cada unidade geomorfológica o desenvolvimento de uma cobertura vegetal adaptada a morfodinâmica da área em que se insere. Nos maciços residuais ocorre a presença de mata pluvionebular e mata seca, as caatingas desenvolvem-se na depressão sertaneja, a mata ciliar percorre as planícies fluviais, nos tabuleiros pré-litorâneos ocorre a mata de tabuleiro, e por fim, na planície costeira, há um complexo vegetacional litorâneo, com destaque para o manguezal.

RESUMO A região do Médio São Francisco representa um amplo espaço territorial, com marcante sazonalidade climática, diversidade de rochas, paisagens, solos, e, consequentemente, formações vegetais. No entanto, as relações entre as características edáficas e suas formações vegetais são pouco esclarecidas. Este estudo apresenta uma relação dos atributos edáficos, determinante para o estabelecimento de savana-estépica, savana-estépica florestada, savana, floresta estacional semidecidual e floresta estacional decidual nessa região, com base na análise de 166 perfis de solos. Em geral, os solos sob savana foram mais lixiviados e arenosos, álicos e restrito aos topos das paisagens; e os sob savana-estépica foram eutróficos, porém sódicos ou solódicos, e rasos, sempre associados às partes mais baixa da paisagem. A floresta estacional semidecidual apresentou forte variação dos atributos edáficos, indicando que sua ocorrência se baseia, principalmente, na disponibilidade de água. Houve grande semelhança entre os solos de savana-estépica florestada e floresta estacional decidual, sendo todos geralmente eutróficos, alcalinos e bem desenvolvidos, e suas diferenças restritas ao aspecto fisionômico da vegetação. Os domínios fitogeográficos do semiárido apresentaram-se pedologicamente bem diferenciados, sendo as savanas (cerrados) e savana-estépica (caatingas) similares às suas respectivas áreas nucleares. Além disso, as florestas estacionais deciduais evidenciaram atributos edáficos bem contrastantes com os domínios vizinhos, destacando essas formações como uma entidade fitogeográfica distinta.

Se proponen acciones que logren un impacto socio-económico para el desarrollo sostenible forestal en las comunidades del norte del Perú, a partir del inventario taxonómico, fitogeográfico y de uso de las especies madereras nativas que han sido utilizadas desde hace miles de años y que es necesario conocerlas, validar su uso y darles el valor agregado que requieren. Para la obtención de los datos se realizaron colectas a través de exploraciones botánicas programadas a varias localidades del norte del Perú entre 2008 y 2016. Además, se llevó a cabo una revisión de la bibliografía especializada, y se reforzó esta información con la obtenida por la experiencia personal tanto de los investigadores como la aportada por los pobladores locales y regionales. Se reportan ochenta y seis especies. Estos elementos fueron la base de la propuesta de acciones para impulsar, e indicadores para evaluar el desarrollo sostenible del sector forestal. La propuesta es factible para otras regiones del Perú y otros países de Latinoamérica.

En el marco de un estudio de flora y vegetación realizado en la Provincia Fitogeográfica de las Yungas, se citan e ilustran siete especies que no habían sido registradas para la provincia de Jujuy (Argentina): Vallea stipularis (Elaeocarpaceae), Escallonia schreiteri (Escalloniaceae), Cyclopogon congestus, Rhinocidium fuchsii, Sacoila secundiflora (Orchidaceae), Campyloneurum angustipaleatum (Polypodiaceae) y Adiantum camptorachis (Pteridaceae).

Copyright of Ciência Florestal (01039954) is the property of Ciencia Florestal and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Public urban green areas are well-wooded spaces and represent icons of well-being and environmental quality of the city environment, due to the diverse benefits generated by the vegetation, while also providing dynamicity and beauty to the urban space. Public green areas (PGAs) also correspond to free spaces, aimed at accessible social uses by the entire population, as well as leisure places. Thus, the present research had as aim the analysis of the urban density in which public green areas of the city of Garanhuns-PE are inserted, as well as what social uses are developed in the studied areas. To this end, this research is based on the systemic analysis of the landscape with the support of fieldwork and geographic information systems (GIS) for mapping creation. The main results indicate that the urban densification refers to areas of commercial and residential character, with little verticalization. Their uses become diversified when the PGA has some kind of equipment destined for social use, with urban parks being the spaces presenting the best conditions of use. [ABSTRACT FROM AUTHOR]

Copyright of Lilloa is the property of Fundacion Miguel Lillo and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

There are numerous maps of the spontaneous vegetation of Argentina. However, a country-level map with enough detail to discriminate vegetation units within the phytogeographic provinces described by Cabrera (1976) is lacking. We analyzed vegetation descriptions published in recent decades, with special attention to those that produced physiognomic-floristic maps. As a result of this analysis, here we present a physiognomic-floristic map of spontaneous vegetation of Argentina that shows the heterogeneity within phytogeographic provinces. The map has 50 vegetation units as subdivisions of the phytogeographic ecotone and provinces early described, and a brief physiognomic-floristic description of each ecotone, province and vegetation unit. We propose a nomenclature of each vegetation unit based on dominant type of spontaneous vegetation and characteristic species and present digital cartographic material. [ABSTRACT FROM AUTHOR]

This study provides information on the diversity and distribution patterns of Salpichroa species along the Andes. We analyzed a database of 855 georeferenced herbarium collections, of a total of 1205 studied specimens, of which 99% came from Peru, Ecuador, and Argentina. Twenty two species are recognized, of which 19 are found in Peru, the country with the greatest diversity of Salpichroa, compared to Bolivia (8), Ecuador (5), Argentina (4), Chile (3), Colombia (2), Venezuela (2), Uruguay (1), Paraguay (1), and Brazil (1). In general, Salpichroa is distributed between 30° N and 37° S, with the highest species richness between 7° S and 17° S in Peru. Within Peru, the highest concentration of species is found in the department of Cusco. The greatest species diversity is found between 3000-4000 m elevation on both the eastern and western slopes of the Andes. The high diversity of the genus in the Peruvian Andes is likely due to the high environmental heterogeneity and habitat diversity present in the area. [ABSTRACT FROM AUTHOR]

Through updating of the identifications of 1306 specimens housed at the largest herbarium collection in Tbilisi (TBI) and some new collections made in the summer of 2015 along the Greater Caucasus Range in Georgia, a comprehensive list and a key of forty three Georgian Cladonia species are presented. Cladonia acuminata, C. bacilliformis, C. borealis, C. conista, C. cyanipes, C. cyathomorpha, C. cf. libifera, C. macrophyllodes, C. sulphurina, and C. symphycarpa are reported as new to Georgia. Thirteen species of Cladonia were deleted from the earlier checklists. [ABSTRACT FROM AUTHOR]

Copyright of Caldasia is the property of Universidad Nacional de Colombia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

La flora de musgos mexicanos contiene alrededor de 967 especies y variedades; aunque es esencialmente neotropical, contiene numerosos taxa de afinidad boreal, austral y de amplia distribución. Su distribución loca l y mundial sugiere que México es el sitio de convergencia de floras tropicales y templadas que se segregan altitudinalmente a lo largo de las montañas y están separadas latitudinalmente por el Eje Neovolcánico. La flora de la porción sur del país está formada principalmente por taxa tropicales cuya distribución septentrional puede extenderse más allá de los 20° N siguiendo los planos costeros.

Este estudo teve como objetivos avaliar a similaridade florística do componente arbóreo de 39 remanescentes de florestas superomontanas no domínio atlântico, Brasil, e analisar a influência de variáveis geográficas e climáticas sobre os padrões observados. Foi utilizada uma matriz binária de presença e ausência das espécies arbóreas compiladas dos 39 levantamentos florísticos e fitossociológicos. Para conhecer a relação da composição florística das áreas com variáveis ambientais e espaciais, foram extraídas as coordenadas geográficas e os dados climáticos de cada área. Com o objetivo de avaliar a similaridade florística dos remanescentes, foi utilizado um dendrograma e, para determinar a influência de variáveis ambientais e espaciais sobre os padrões florísticos, foi utilizada a análise multivariada NMDS. O dendrograma e a NMDS demonstraram a formação de agrupamentos, predominantemente entre remanescentes localizados em uma mesma unidade fitogeográfica. Observou-se a existência de um gradiente ambiental ligado às condições climáticas. Em áreas com maiores valores de sazonalidade térmica, amplitude térmica anual, precipitação, latitude e longitude, ocorreram florestas superomontanas com matriz ombrófila e, em áreas com maiores valores de temperatura média, amplitude térmica diária, isotermalidade, sazonalidade da precipitação e temperatura mínima no mês mais frio, ocorreram predominantemente florestas com matriz estacional.

A new species of Ceroxylon from Peru, C. peruvianum, is described and illustrated. The finding of disjunctive populations of C. quindiuense in Peru is discussed.

This article presents an inventory of South American palms including 457 species and 50 genera. The distribution of palms within seven phytogeographical entities is analyzed. Factors which influence the evolution of palms in South America are discussed.

The Espírito Santo state has a great variety of ecosystems in a relatively small territory. The exuberance of its forests has awakened the interest of many naturalists and travelers since the nineteenth century, who left valuable recordings of these early years of occupation of the "Areas Prohibidas" (Prohibited Areas), East of Minas Gerais. The coffee crops, one of the economic basis of the state, started the loss of these forests. Such losses also boosted the conservationist movement and the scientific research in the state. The biogeography, species richness, and the ecological processes in the remaining fragments of the Espírito Santo still reveal surprises. Within the Atlantic Forest domain, the state shelters different vegetational types: Ombrophilous Dense Forest, Ombrophilous Open Forest, Seasonal Semideciduous Forest, Savannas, Pioneer Formations, and Ecological Refuges. The description and classification of the vegetation is still unfinished due to the uncertainties raised by some studies. Moreover, there is a lack of a vegetation map that adequately contemplates the diversified vegetation. Despite these limitations, we present short descriptions of the vegetation types that have been recognized in the modern literature. [ABSTRACT FROM AUTHOR]

The cerrados of southern Minas Gerais are still poorly studied. The objective of this work was to understand the role of soils in structuring two tree communities of cerrado in the municipality of Guapé. For that 14 plots of 50 × 30 m were installed in two cerrado fragments being 8 over Litholic Neosol and 6 over Red Argisol. In these plots, all tree individuals with circumference at 30 cm from the ground (C30) = 15.7 cm (5 cm diameter) were measured and soil samples from each plot were taken for chemical and textural analysis. In total we sampled 1561 individuals and total species richness was 83 species belonging to 65 genera of 37 families. The area on Neossol was classified as rupestral cerrado sensu stricto and Caryocar brasiliense was the most important species in VI in the physiognomy. The cerrado on Argisol was categorized as typical cerrado sensu stricto and Dalbergia miscolobium was the largest species in VI to this vegetation type. The CCA presented a significant eigenvalue to the first axis of 0.563 indicating a short gradient with rapid replacement of species. There was an association at the contents of P and sand in the rupestral cerrado and K and clay in the typical cerrado. Finally, the distribution of species in the gradient was different between the substrates indicating species preference for specific sites. The conservation of the cerrados of southern Minas Gerais should therefore consider not just the floristic diversity but their multiple landforms and associated ecotones formations. [ABSTRACT FROM AUTHOR]

O objetivo deste estudo foi descrever a riqueza, estrutura e diversidade de espécies arbóreas em áreas de Floresta Estacional e ecótono (Floresta Estacional/Floresta Ombrófila) no estado do Tocantins, buscando subsídios para a conservação, manejo florestal, compensação de reserva legal e recuperação ambiental, além de discutir as identidades fitogeográficas em comparação com outras florestas do Brasil. Em 18 bacias hidrográficas, conduziu-se amostragem da vegetação arbórea (DAP > 5 cm) de 22 áreas (amostras) por meio do inventário de 477 parcelas de 400 m². Foram elaboradas análises de classificação pelo método TWINSPAN, em duas escalas distintas. A primeira avaliou a diversidade beta entre as parcelas amostradas no estado do Tocantins e a segunda buscou analisar a similaridade das florestas do Tocantins em relação a outras florestas do bioma Cerrado e suas áreas de tensão ecológica. As florestas amostradas apresentaram ampla variação em termos de riqueza (33 a 243 espécies), densidade (486 a 1.179 ind.ha-1), área basal (14,04 e 37,49 m².ha-1), índices de diversidade (H´ = 2,75 a 4,59) e de equabilidade (J´= 0,72 a 0,86). As análises de classificação convergiram para resultados comuns, identificando quatro ambientes dissimilares em termos florísticos e estruturais no estado do Tocantins: Floresta Estacional Decidual, Floresta Estacional Semidecidual, ecótono Floresta Estacional Semidecidual/Floresta Ombrófila e ecótono Floresta Estacional Decidual/Floresta Ombrófila. A fim de manter a diversidade de plantas e de ambientes na região de transição Floresta Amazônica e Cerrado, sugere-se que o processo de criação de unidades de conservação no estado do Tocantins deva ser intensificado e tenha como base para seleção das áreas critérios biogeográficos.The purpose of this study was to describe the richness, structure and diversity of tree species occurring in seasonally dry forests and some ecotone areas (Seasonal Forest/Ombrophilous Forest) in the state of Tocantins (Brazil). We aimed to provide information for conservation, management, environmental compensation and restoration strategies, and discuss their phytogeography identities in relation to other Brazilian forests. We selected 22 areas in 18 hydrogeographic basins and performed an inventory of all trees species (DHB > 5 cm) occurring in 477 plots of 400 m². We conducted a classification analysis of the vegetation using the TWINSPAN method in two different scales. The first assessed the beta diversity among plots within the state of Tocantins, and the second analysed similarities between these forests and other forests ecosystems in the Cerrado ecoregion and related ecotones in Central Brazil. A wide variation of species richness (33 to 243 species), density (486 to 1179 trees.ha-1), basal area (14.04 to 37.49 m². ha-1), diversity indexes (H’ = 2.75 to 4.59) and evenness (J’ = 0.72 to 0.86) across the sites was found. Based on floristic and structural aspects, classification analyses identified four major forests types: Seasonal Deciduous Forest, Seasonal Semi-deciduous Forest, and two ecotones Seasonal Semideciduous Forest/Ombrophilous Forest and ecotone Seasonal Deciduous Forest / Ombrophilous Forest. In order to maintain plant and habitat diversity in the Amazon/Cerrado transition zone, the creation of conservation areas should be intensified using biogeographical patterns as site selection criteria.