478 THE VEGETABLE WORLD. 
stamens are four in number, of unequal length, two large and 
two small, inserted upon the corolla. The pistil consists of a 
superior ovary, the external and upper surface of which presents 
hac, | ‘ 
a 
Seog 
Fig. 433.—The White Dead Nettle. ieee 
four protuberances, and a style, which is inserted in the m eid 
of them, terminating in two branches covered with a 08 — 
papillw ; each protuberance is a cell of the ovary, and each eae 
