Swingle D B <br/><br/>
Textbook of systematic botany 

 -  1946 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>50853 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Flowering plant<br/>Botany
<br/><br/><label>Dewey Class. No.: </label>I5:12, H6;1