Now showing items 1-10 of 89
Isozymic and Chromosomal Evidence for the Allotetraploid Origin of Gymnocarpium dryopteris (Dryopteridaceae)
(Systematic Botany, 1993-01)
The Status of Gymnocarpium heterosporum and G. robertianum in Pennsylvania
(American Fern Journal, 1992-01)
Are there too many fern genera?
Phylogeny and relationships of the neotropical Adiantum raddianum group (Pteridaceae)
© International Association for Plant Taxonomy (IAPT) 2016. With more than 200 species, the maidenhair fern genus Adiantum is among the top ten most diverse fern genera. Adiantum is pantropical in distribution and, due to ...
Crowdfunding the Azolla fern genome project: a grassroots approach
Phytochrome diversity in green plants and the origin of canonical plant phytochromes
(Nature communications, 2015)
Low-copy nuclear data confirm rampant allopolyploidy in the cystopteridaceae (Polypodiales)
© International Association for Plant Taxonomy (IAPT) 2014. Here we present the first nuclear phylogeny for Cystopteridaceae (Polypodiales), using the single-copy locus gapCp “short”. This phylogeny corroborates broad results ...
Rediscovery of Polypodium calirhiza (Polypodiaceae) in Mexico
This study addresses reported discrepancies regarding the occurrence of Polypodium calirhiza in Mexico. The original paper describing this taxon cited collections from Mexico, but the species was omitted from the recent ...
Horsetails and ferns are a monophyletic group and the closest living relatives to seed plants.
Most of the 470-million-year history of plants on land belongs to bryophytes, pteridophytes and gymnosperms, which eventually yielded to the ecological dominance by angiosperms 90 Myr ago. Our knowledge of angiosperm phylogeny, ...
The paraphyly of Osmunda is confirmed by phylogenetic analyses of seven plastid loci
(Systematic Botany, 2008-03-01)
To resolve phylogenetic relationships among all genera and subgenera in Osmundaceae, we analyzed over 8,500 characters of DNA sequence data from seven plastid loci (atpA, rbcL, rbcL-accD, rbcL-atpB, rps4-trnS, trnG-trnR, ...