A field guide to ferns and their related families of northeastern and central North America : with a section on species also found in the British Isles and Western Europe /
Cobb, Boughton
A field guide to ferns and their related families of northeastern and central North America : with a section on species also found in the British Isles and Western Europe / illustrated by Laura Louise Foster - Boston : Houghton Mifflin, 1956 - xviii, 281 p. : ill. ; 29 cm. - The Peterson field guide .
Bibliography : p. 263-267
0395975123 (pbk.) RM72.36
Ferns--Identification--North America
A field guide to ferns and their related families of northeastern and central North America : with a section on species also found in the British Isles and Western Europe / illustrated by Laura Louise Foster - Boston : Houghton Mifflin, 1956 - xviii, 281 p. : ill. ; 29 cm. - The Peterson field guide .
Bibliography : p. 263-267
0395975123 (pbk.) RM72.36
Ferns--Identification--North America