Two unusual features in Thelypteroid ferns and their evolutionary significance

Publication Type:Journal Article
Year of Publication:1977
Authors:D. S. Loyal
Journal:American Fern Journal
Start Page:53
Date Published:1977
Taxonomic name: 
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith