Ptéridophytes

A field manual of the ferns & fern-allies of the United States & Canada

David B. Lellinger ; with photographs by A. Murray Evans.

Flora del Río Cenepa, Amazonas, Perú

editores: Rodolfo Vásquez Martínez, Rocío Rojas Gonzáles, Henk van der Werff

The fern allies of North America north of Mexico

Clute, Willard Nelson

Flora of the prairies and plains of central North America.

Rydberg, Per Axel

Ferns and Fern Allies of Canada (Publication / Research Branch, Agriculture Canada)

William J. Cody

The morphology of pteridophyles: the structure of ferns and allied plants.

K. R. Sporne

An illustrated guide to the ferns and fern allies of Shenandoah National Park, Virginia

by Peter M. Mazzeo ; with illus. from Britton and Brown Illustrated Flora

Field guide to the ferns and other pteridophytes of Georgia

Lloyd H. Snyder, Jr., James G. Bruce.

Les fougères et les plantes alliées du Canada

William J. Cody, Donald M. Britton

Ferns of Minnesota

Rolla Tryon ; illustrated by Wilma Monserud.