The biology of higher cryptogams / 
by William T. Doyle. 
 - 163 pages :  ill.;  24 cm. 
 - Current concepts in biology .
 - Current concepts in biology. .
<br/><br/><label>LCCN: </label>lc73084436 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cryptogams.<br/>Ferns.<br/>Mosses.<br/>Liverworts.