Hayward, Herman Eliot,  1892- <br/><br/>
The structure of economic plants / 
by Herman E. Hayward. 
 -  1948 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Botany, Economic<br/>Plant anatomy.<br/>Plant morphology.
<br/><br/><label>Dewey Class. No.: </label>581.7