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Sökning: WFRF:(Øllgaard Benjamin)

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  • Schuettpelz, Eric, et al. (författare)
  • A community-derived classification for extant lycophytes and ferns
  • 2016
  • Ingår i: Journal of Systematics and Evolution. - : Wiley. - 1674-4918 .- 1759-6831. ; 54:6, s. 563-603
  • Tidskriftsartikel (refereegranskat)abstract
    • Phylogeny has long informed pteridophyte classification. As our ability to infer evolutionary trees has improved, classifications aimed at recognizing natural groups have become increasingly predictive and stable. Here, we provide a modern, comprehensive classification for lycophytes and ferns, down to the genus level, utilizing a community-based approach. We use monophyly as the primary criterion for the recognition of taxa, but also aim to preserve existing taxa and circumscriptions that are both widely accepted and consistent with our understanding of pteridophyte phylogeny. In total, this classification treats an estimated 11 916 species in 337 genera, 51 families, 14 orders, and two classes. This classification is not intended as the final word on lycophyte and fern taxonomy, but rather a summary statement of current hypotheses, derived from the best available data and shaped by those most familiar with the plants in question. We hope that it will serve as a resource for those wanting references to the recent literature on pteridophyte phylogeny and classification, a framework for guiding future investigations, and a stimulus to further discourse.
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3.
  • Zapata, Nicolás, et al. (författare)
  • Pseudolycopodiella iuliformis (Lycopodiaceae, Lycopodielloideae) in Ecuador and Peru; a disjunct species between the Guyana Shield and the Cordillera del Cóndor.
  • 2021
  • Ingår i: Revista Ecuatoriana de Medicina y Ciencias Biológicas. - : Pontifica Universidad Catolica del Ecuador. - 2477-9148 .- 2477-9113. ; 42:2
  • Tidskriftsartikel (refereegranskat)abstract
    • Recent floristic surveys in Ecuador and Peru have found many disjunct species between the Guyana Shield and the Cordillera del Cóndor. Here, we report the occurrence of another disjunct species between these two ranges, Pseudolycopodiella iuliformis (Underw. & F.E. Lloyd) Holub, recently discovered in the Cordillera del Cóndor range. We present a morphological description, photographic documentation , and an updated distribution map. In addition, we highlight the morphological differences between P. iuliformis and its congeners historically recorded for Ecuador and Peru. This research highlights an urgent need for further exploration of the Cordillera del Cóndor range, as it seems likely, based on our findings and those of previous floristic surveys, that additional disjunct species are likely to be found in the area.
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