Stebbins, G. Ledyard  1906-2000 <br/><br/>
Variation and evolution in plants / 
G. Ledyard Stebbins 
 - New York :  Columbia University Press,  1950 
 - xix, 643 p. :  ill. ;  24 cm. 
 - Columbia biological series ;  no.16 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plants--Evolution<br/>Plants--Variation