Delevoryas, Theodore,  1929- <br/><br/>
Plant diversification / 
Theodore Delevoryas. 
 - 2nd ed. 
 - Rinehart and Winston, New York :  Holt ,  1977 
 - xi, 144p.:  ill. ;  24 cm. 
 - Modern biology series. .
<br/><br/>Includes bibliographies references and indexes. 
<br/><br/><label>ISBN: </label>0030801338 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Botany--Morphology.<br/>Plants--Evolution.<br/>Botany--Variation.