Arber, Agnes,  1879-1960 <br/><br/>
The natural philosophy of plant form / 
Agnes Arber 
 - Cambridge, Eng. :  The University Press,  1950 
 - xiv, 246 p. :  ill. ;  23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plant morphology