Benson, Lyman David,  1909- <br/><br/>
Plant classification / 
Lyman Benson ; principal plant dissections and ill. by Jerome D. Laudermilk. 
 - 2d ed. 
 - Lexington, Mass. :  Heath,  c1979. 
 - xxiii, 901 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographies and index. 
<br/><br/><label>ISBN: </label>0669014893 
<br/><br/><label>LCCN: </label>78061856 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Botany--Classification.
<br/><br/><label>LC Class. No.: </label>QK97  / .B45 1979 
<br/><br/><label>Dewey Class. No.: </label>581/.01/2