EUPHORBIACE.E. 



pendeut of oaeli other, sometimes pendent and sometimes ascendent, 

 extrorse, lateral, or introrse. The g-ynteceura, formed of two or three 

 carpels, is often accompanied by a hypogynous disk, whose elements, 

 linear or sqnamiform, alternate with the carpels. The species with 

 ascendent stamen cells are sometimes herbaceous, but more generally 

 woody and arborescent. The species of Mercnrialis of the section 



MtrciiyialU anntta. 



Fig. 177. Iilale stalk. 



Fig. 17U. Female .stalk. 



»• 



Fig. 178. Male flower (|). Fig. 180. Female flower (|). Fig. 181. Female flower, 



without gynajceum. 



W% 



Fig. 182. Normal female 

 flower seen from above. 



Fig. 183. Female flower 

 with four sepals. 



Fig. 184. Female flower 

 with five seiials. 



Erythrococca are woody and thorny; finally, several herbaceous Cape 

 species have an androceum reduced like that of Lysopsis to thi-ee 

 stamens. Tetrorchuliuni, consisting of shrubs from tropical America, 

 have nearly the same vegetative organs and flowers as the species of 

 Mercurialis forming the sub-genus Claorylon ; but their stamens are 



