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The Quercus suber woodlands growing in Algeria are of high ecological importance, even if they have a narrow distribution, and are mainly located in the north eastern part of the country. The objective of this paper is to assess the floristic diversity of the cork oak woodlands in Kabylia (north eastern Algeria), by describing the taxonomical (at families, genera, species and subspecies ranks), biological and chorological diversity of the vascular flora, and to discuss conservation of the flora, focusing on endemics. Overall, 311 vascular plant taxa are recorded in the investigated area. Twenty-nine taxa are endemics and Algerian law protects eight of them. Biological spectrum reveals ecological features and anthropic pressure, while chorological spectrum provides information in climatic and biogeographical terms. The presence of 34 plant taxa with high value that are range-restricted and/or endemics in these woodlands is especially significant, as well as three threatened or near threatened species. Accordingly, measures for protection of floristic diversity in this area are recommended. [ABSTRACT FROM AUTHOR]

In this paper a comprehensive list of Icelandic ferns (Polypodiopsida sensu PPG I) is presented alongside detailed distribution maps (5×5 km grid). Apart from general characteristics of the local range, details on ecology and conservation status are provided, including most common habitat types for each species, altitudinal range and a local red list status assessment according to IUCN criteria. The most important bibliography records for each species are also listed. [ABSTRACT FROM AUTHOR]

This paper includes the first part of the atlas of alien plant of the Community of Madrid, which includes the taxa of ferns and gymnosperms. Only taxa that grow outside urban areas, parks and gardens, both introduced and naturalized, have been considered. In total, 48 taxa, 2 of ferns and 46 of gymnosperms (32 Pinaceae and 14 Cupressaceae) have been analyzed. Of these, 33 taxa (1 Salviniaceae, 21 Pinaceae, 11 Cupressaceae) have been considered, including distribution maps, while in another 15 their presence nowadays is doubtful, or are only located in urban areas. The species of Pinaceae dominate as a result of forest plantations. Many of the considered species have the capacity to naturalize (there is evidence in 19 of them), although their expansion is limited, not being invasive; only Azolla filiculoides Lam. has an invasive behaviour, although its distribution in Madrid seems stable. [ABSTRACT FROM AUTHOR]

The distribution range in Gran Canaria of the two species of Arbutus cited the island, the endemic Arbutus canariensis and the introduced Arbutus unedo, has been a confusing subject. In this paper, the corology of both species on the island and the first record of the hybrid Arbutus ×androsterilis in Gran Canaria are presented. This a very relevant information for the management on this island of both: the rare Canarian strawberry tree and the Mediterranean strawberry tree, the second considered as an invasive exotic species, and included in the Spanish catalogue of invasive exotic species for the Canary Islands. [ABSTRACT FROM AUTHOR]

This paper analyzes the local names of plants in the Roncal Valley (Navarre Pyrenees) from a multidisciplinary perspective. Through the ethnographic survey and herborisations carried out during 2016/2017 it has been possible to register the traditional and ethnobotanical knowledge of the region. It has been obtained 558 phytonyms of 269 plants (256 identified species and 13 undetermined still). The estimated results of the analysis indicate that 67.20% of the phytonyms have Basque lexemes, prefixes or suffixes. Likewise, the article exposes how 31 of them are shared among the different plants studied and the 61% of these plants have multiplicity of local names. In addition, after the ethnographic classification of them, it has been possible to verify that the categories physiophytonym (28.03%), onomaphytonym (27.90%) and allegorical-metaphorical (17.80%) are the most representative. The study concludes with an assessment of the evolution, loss or conservation of many of these common names today after an anthropologicalbotanical contextualization. [ABSTRACT FROM AUTHOR]