XXXIV 



FLOWER 



465 



(B and c, cp] together constituting the gyncecium or pistil. 

 Each carpel consists of an expanded, hollow, proximal 



B 



vril 



ncl 



FIG. 124. Structure of the flower of the Buttercup. 



A, the entire flower from below, showing peduncle (pd), sepals (sp), 

 and petals (pt). 



B, vertical section of flower, showing peduncle (pd), floral receptacle 

 (fl. r}, sepals (sp\ petals (//), stamen (st), and carpels (cp}. 



The carpel cp' is cut vertically, and shows the megasporangium. 



C, floral receptacle (fl. r), with carpels (cp}, one stamen (st}, and 

 scars left by the removal of the remaining stamens. 



D, stamen, showing filament (ft) and anther (an}. 



E, carpel in vertical section, showing venter (vnf) with contained 

 megasporangium (mg. spg), and style (st}. 



F, petal, with nectary (ncti. 



(A and c, after Vines ; B, D, and F, after Maout and Decaisne ; E, 

 after Oliver. ) 



portion or venter 1 (E, vnt), and of a short, hook-like distal 



extremity (st) covered with sticky hairs and called the stigma. 



1 Commonly called ovary. 



H H 



