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Flora of North America North of Mexico
The Flora of North America north of Mexico treats all native and naturalized vascular plants and bryophytes in Canada, Greenland, St. Pierre et Miquelon, and the continental United States including
Phylogenetic position and biogeography of Hillebrandia sandwicensis (Begoniaceae): a rare Hawaiian relict.
Preliminary analyses indicate that the Hillebrandia lineage is at least 51-65 million years old, an age that predates the current Hawaiian Islands by about 20 million years, and suggests a boreotropic or a Malesian-Pacific origin is most likely.
Database of Vascular Plants of Canada (VASCAN): a community contributed taxonomic checklist of all vascular plants of Canada, Saint Pierre and Miquelon, and Greenland
The Database of Vascular Plants of Canada or VASCAN is a comprehensive and curated checklist of all vascular plants reported in Canada, Greenland (Denmark), and Saint Pierre and Miquelon (France).
Are many plant species paraphyletic
Many plant species are likely to be paraphyletic, and predictably a species classification based on the criterion of monophyly is unlikely to be an effective tool for describing and ordering biological diversity.
A morphological phylogenetic analysis of Aesculus L. and Billia Peyr. (Sapindaceae)
This analysis, based on morphological characters, suggests that the monotypic section Parryanae (Aesculus parryi Gray) is sister to the remainder of the genus, and the other species are divided into two clades.
Diversification of Angraecum (Orchidaceae, Vandeae) in Madagascar: Revised Phylogeny Reveals Species Accumulation through Time Rather than Rapid Radiation
A new phylogeny of Angraecum is presented based on chloroplast sequence data, nuclear ribosomal data, and 39 morphological characters from 194Angraecinae species of which 69 were newly sampled, and the newly described character, position of the labellum (uppermost and lowermost), was the main character delimiting clades within a monophyletic AngraECum sensu stricto.
Selection of areas for protecting rare plants with integration of land use conflicts: A case study for the west coast of Newfoundland, Canada
Abstract On the west coast of Newfoundland (Canada) about 40% of the provincially rare plant species are not protected within the system of three national parks and two ecological reserves existing
Phylogenetic relationships among diploid species of Symphyotrichum (Asteraceae: Astereae) based on two nuclear markers, ITS and GAPDH.
Two nuclear markers are used, the nrDNA internal transcribed spacer (ITS) and the low-copy nuclear gene glyceraldehyde 3-phosphate dehydrogenase (GAPDH), to resolve intergeneric and interspecific relationships within the subtribe at the diploid level, and to determine whether the phylogenies validate the classifications of Nesom or Semple.
Phylogenetic Relationships of American Willows (Salix L., Salicaceae)
The species tree provides strong support for a division of the genus into two subgenera, Salix and Vetrix, and clearly has two clades that have distinct biogeographic patterns.
Phylogenetic Implications of the Multiple Losses of the Mitochondrial coxII.i3 Intron in the Angiosperms
The coxII.i3 mitochondrial intron seems a useful phylogenetic marker in some groups, but caution in interpretation is needed as multiple parallel losses have occurred throughout the angiosperms.