The botrychiaceae of Alberta
Subtitle: a survey of element occurrences of the genera Botrychium and Sceptridium in Alberta
By: Patrick Williston
Contributors: Alberta. Alberta Sustainable Resource Development
Publisher: Alberta Sustainable Resource Development, Resource Data Division
Published: 2002
Place of publication: [Edmonton]
Language: eng
Number of pages: 18
Subjects: Ophioglossaceae; Identification; Rare plants; Ferns
Notes: "January 2002."

Includes bibliographical references.

Also available online.