Practical botany 
W. O. Howarth and L.G.G. Warne. 
 - 5th ed. 
 - London :  University Tutorial Press,  1985. 
 - 211 p. :  ill. ;  25 cm. 
<br/><br/>Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Botany.<br/>Gardening.<br/>Plants, Useful.