Download or read book A Field Guide to Ferns and Their Related Families written by Boughton Cobb and published by Thomas Allen Publishers. This book was released on 1983-10 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: Naturalists have a particular interest in the ferns and their allies, since they represent the earliest plant forms to appear on earth. Here in an unabridged paperback edition is a completely illustrated pocket guide to all the species of ferns, horsetails, clubmosses, spikemosses, and quillworts found in a major portion of the North American continent.