Taxonomic and Geographic studies in North American Ferns

Publication Type:Journal Article
Year of Publication:1917
Authors:F. K. Butters
Journal:Rhodora
Volume:19
Start Page:169
Pagination:169-207
Short Title:Rhodora
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith