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This study aimed to determine the floristic characteristics and general vegetation structure of the Mavga Castle, a natural and cultural site located in the Mut district of Mersin province. 57 taxa belonging to the 28 families and 52 genera were identified in the study areas. The distribution of the identified plants is as follows: Mediterranean region 17 taxa (29.32%), Irano-Turanian region 4 taxa (7.01%), widely distributed three taxa (5.26%) and phytogeographic region unknown or multi-regional 33 taxa (57.89%). The most prominent families in the area, based on the number of taxa they contain, are Lamiaceae (10), Fabaceae (7), Asteraceae (5) and Brassicaceae (5). It is noteworthy that there are no European-Siberian elements. Additionally, 8 endemic taxa were identified in the study area, resulting in an endemism rate of 14.03%. When examining the threat category of the endemic plants, It was found that 4 taxa are Near Threatened (NT), 2 are Least Concern (LC), 1 is Vulnerable (VU), and 1 taxon is Endangered (EN). Characteristic species of the vegetation classes Quercetea ilicis, Cisto-Micromerietea, Quercetea pubescentis, and Querco-Fagetea were found throughout the study area. [ABSTRACT FROM AUTHOR]

The Neotropical Region (NR) is one of the areas with the most plant diversity globally, and its richness of vascular epiphyte (VE) species is higher than Africa and Asia combined. This richness is a consequence of the heterogeneous climate and geological history of the region, both factors also being responsible for the plant distribution patterns. Here, we aimed to explore the phytogeographic relationships of the VE in the NR using 14,636 identified records from 173 surveys exclusively of VE, carried out in 14 countries and 23 biogeographic provinces, comprising 3849 identified species. We assessed the floristic patterns and relationships with climatic variables by multivariate analysis (cluster and ordination analyses). The clustering formed 13 main groups, partly corresponding to the biogeographic units of the NR. Our results demonstrate consistent floristic patterns confirmed through the analysis of floristic similarity, corroborating previous biogeographic classifications in well-studied areas, while broader patterns were found in poorly studied areas. We found a floristic gradient pattern, which allowed us to understand the relationships between environmental conditions and floristic patterns. Furthermore, we discuss our results under the light of the history that likely shaped the current distribution patterns and richness of the VE in the NR. The VE proved to be an important model for testing biogeographic classifications. We encourage the studies of this synusia in the several geographical gaps that remain in the NR, which undoubtedly will improve further studies and support conservationist policies. [ABSTRACT FROM AUTHOR]

In this study, the distribution of 28 plant taxa for the B8 square is given for the first time. 6 of these taxa are endemic. It is stated that the number of stamens is 6 in the definition of Lythrum volgense in the flora of Turkey. However, since the number of stamens is given as 2 in the descriptions of the flora of other countries where this species is distributed, this situation has also been emphasized. While 10 of the 28 taxa given in this study are Mediterranean, 4 of them are European Siberian, 2 of them are Iran-Turan, phytogeographical region element; 12 of them are multi-regional or phytogeographically undetermined plants. [ABSTRACT FROM AUTHOR]

Objective: The Wamba valley is one of the rare forest areas of Kwango and Bagata. This research aims to understand the phytodiversity of this area in order to have a database necessary for the rational management of this area's natural resources. It means also to characterize the floristic, ecological, and phytogeiographic parameters of the study area. Materials and Methods: The botanical samples collected in the study area represent the biological material that was used for identification species of the forest under study. To achieve the objectives pursued, we carried out floristic inventories, supported by the systematic sampling technique. The progress of this study is as follows: field visits and choice of study sites; collection of samples and identification of the material collected; ecological study and phytogeographic spectra of the identified species. Results: The floristic inventory noted the presence of 192 species grouped into 160 genera and 58 families. This flora is rich and diverse. The recognized species of this forest area belong more to the family of Fabaceae, and Rubiaceae. The morphological structure of the species reveals the abundance of phanerophyte species while the chorological aspect remains dominated by Guinean-Congolese elements. Conclusion: The study environment is part of the Guinean-Congolese-Zambézian transition zone. This area is characterized by the mixture of species from the Guineo-Congolese regional center of endemism and Zambezian species. This study contributed to the knowledge of the phytodiversity of the area. [ABSTRACT FROM AUTHOR]

Background The vascular flora of Greece comprises no less than 6,705 vascular plant taxa (species and subspecies, including established aliens) in an area of 131,957 km . The phytogeographic region of north-east Greece (NE), an area characterised by physiographic diversity, is the richest floristic region in Greece, yet it remains less-explored compared to other regions. New information We present an annotated inventory of 32 vascular plant taxa collected predominantly from the East Macedonia and Thrace Regions (Makedonia and Thraki, NE Greece), following fieldwork that took place between 2013 and 2021. In our results, we identify seven new additions to the Greek flora (Aethionema saxatile subsp. rhodopaeum, Anthericum ramosum, Aster amellus, Euphorbia carniolica, Hesperis matronalis subsp. matronalis, Saponaria stranjensis and Silene fetlerii) and 25 new records to the regional Greek flora consisting of mostly rare Balkan endemics of a restricted distribution and presumable conservation priorities. Taxonomic comments are added, where necessary. IUCN threat categories are assigned to certain taxa. Our investigation highlights the importance of the Balkan border areas as a source of new floristic elements for single countries and points to the importance of range-restricted taxa, in addition to single-country endemics, to address plants with a narrow distribution pattern. [ABSTRACT FROM AUTHOR]

Copyright of Arid Zone Research / Ganhanqu Yanjiu is the property of Arid Zone Research Editorial Office 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.)

The ecotone of ecological communities is usually rich in species and complex in floristic components, which is regarded as a key zone. Budanla Mountain is located in the transition zone of semi-humid to semi-arid ecological environment in Tibet. Because of its special natural geographical environment, it has rich mountain plant diversity. However, the composition and floristic characteristics of seed plants in this important ecological transition area are still not well understood. In order to clarify the floristic composition and vertical distribution pattern of seed plants on the south slope of Budanla Mountain, the floristic characteristics of seed plants on the south slope of this mountain were systematically studied through field plant community quadrat investigation, laboratory specimen identification and related literature review in this paper, the richness pattern of advantage genera and geographical composition along the altitude gradient was also explored. The results were as follows:(1)There were approximately 316 species of seed plants belonging to 45 families and 156 genera in the south slope of Budanla Mountain, in which there were the most abundant single species and small genera of seed plants, the temperate distribution type was dominant at the genus and species level.(2)In the vertical distribution gradient of geographical elements, the temperate distribution type had a peak value at 4 000 m, including 53 genera, and showed a downward trend with the increase of altitude.(3)The nature of floristic geographical elements and the vertical distribution of species richness in this area might be mainly affected by the local semi-humid climate, local environmental factors and topography. The results of this study can provide important basic data for the study of plant diversity protection and resource utilization in this region. [ABSTRACT FROM AUTHOR]

Large‐scale patterns of biodiversity and formation have garnered increasing attention in biogeography and macroecology. The Qinghai‐Tibet Plateau (QTP) is an ideal area for exploring these issues. However, the QTP consists of multiple geographic subunits, which are understudied. The Kunlun Mountains is a geographical subunit situated in the northern edge of the QTP, in northwest China. The diversity pattern, community phylogenetic structures, and biogeographical roles of the current flora of the Kunlun Mountains were analyzed by collecting and integrating plant distribution, regional geological evolution, and phylogeography. A total of 1911 species, 397 genera, and 75 families present on the Kunlun Mountains, of which 29.8% of the seed plants were endemic to China. The mean divergence time (MDT) of the Kunlun Mountains flora was in the early Miocene (19.40 Ma). Analysis of plant diversity and MDT indicated that the eastern regions of the Kunlun Mountains were the center of species richness, endemic taxa, and ancient taxa. Geographical origins analysis showed that the Kunlun Mountains flora was diverse and that numerous clades were from East Asia and Tethyan. Analysis of geographical origins and geological history together highlighted that the extant biodiversity on the Kunlun Mountains appeared through species recolonization after climatic fluctuations and glaciations during the Quaternary. The nearest taxon index speculated that habitat filtering was the most important driving force for biodiversity patterns. These results suggest that the biogeographical roles of the Kunlun Mountains are corridor and sink, and the corresponding key processes are species extinction and immigration. The Kunlun Mountains also form a barrier, representing a boundary among multiple floras, and convert the Qinghai‐Tibet Plateau into a relatively closed geographical unit. [ABSTRACT FROM AUTHOR]

Copyright of Düzce University Journal of Forestry / Düzce Üniversitesi Orman Fakültesi Ormancılık Dergisi is the property of Duzce University 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.)

Background Ryazan Oblast, situated in the central part of European Russia, has a long tradition of biodiversity research. Large distributional, ecological and phenological data on various taxonomic groups are available from this territory, mainly in the form of paper publications items, undigitised museum collections and archival sources. The purpose of this dataset is to deliver floristic materials, collected by the authors in the Meshchera Lowlands in the form of GBIF-mediated electronic data, to a wider audience. The dataset covers wild tracheophytes (native species, naturalised aliens and casuals) of the Meshchersky National Park. In 2020, it was used for the production of grid maps in "Flora of the Meschchersky National Park: checklist and atlas". New information The dataset contains 14,476 grid records of 817 taxa (806 species and hybrids, ten species aggregates and one genus). Most of the records (82.4%) were made in the field by A.V. Shcherbakov, M.V. Kazakova, N.V. Lyubeznova and A.D. Pastushenko in 2017 and 2018. The dataset includes only one occurrence per species per grid square. Georeferences are based on the WGS84 grid scheme with 55 squares measuring ca. 25 km (2.5' lat. × 5' long.). Each occurrence is linked to the corresponding grid square centroid; therefore, actual coordinates, habitat details and voucher information are unavailable. As of September 2021, the dataset on the flora of the Meshchersky National Park represents the second largest dataset on the biodiversity of Ryazan Oblast, Russia, published in GBIF. [ABSTRACT FROM AUTHOR]

The study of the liverwort and hornwort flora of Vietnam has received additional interest in recent years as many new records have been revealed. This raises the question of the number of new records that may possibly be found and where they should be located. Data on new liverwort occurrences within the last 55 years were summarized to identify whether the discovery 'plateau' has been reached. The bioclimates of the localities of the newest records were examined using canonical correspondence analysis (CCA) to determine whether there was any regularity in the distribution of the new records. Progress in liverwort flora knowledge has not reached a plateau; moreover, within recent years, the number of recorded species has grown quickly. The new records are located in mountainous areas, and climatic characteristics of localities are different from those of the dominant low elevations in the study area. At the current stage 573 taxa (568 species plus 5 varieties) are known in Vietnam. They belong to 105 genera of 46 families. Vietnam has recently become a flagship country in the study of liverwort diversity in Indochina, and the regularities found in the country may be applied to other countries in this macroregion. Higher numbers of recorded species than are now known may be found in all Indochina countries. Mountainous land areas possess the potential ability to harbor a high number of new records. [ABSTRACT FROM AUTHOR]