433 



thin structures (floral-leaves ?)are situated between the ( -flowers. 

 The ? -flower has a long stalk, and finally bends down on one side, 

 namely to the place on the edge of the involucre where the gland 

 is not developed. These cyathia are again arranged in an inflor- 

 escence which commences as a 3-5-rayed umbellate cyme (pleio- 

 chasium), the branches of which ramify dichasially and finally as 



FIG. -160. Euphorbia lathyris: A an (entire) inflorescence (cyathiutn) ; B the same after 

 the removal of the involucre. 



FIG. 459. Diagram of an inflorescence (cyathmm) of FIG. 461. Anthostema . <J- 



Euphorbia with 3 floral-leaves, m,n, o, supporting other (4) and ?-(B) flowers; p the 



cyathia which are subtended by 2 floral-leaves (brae- perianth; ar the node; o the 



teolfs ; m, n). 1-5, the involucral leaves in their order ovule, 

 of development; the shaded portions are the crescentic 

 glands. 



scorpioid cymes. Latex, with peculiar-shaped starch -grains, is 

 found in laticiferous cells (especially in the Cactus-like, leafless 

 species.) 



205 genera ; more than 3,000 species ; especially in the Tropics. Many are 

 used on account of the oil, and of the pungeut (aperient, poisonous, anthelmmtic, 

 W. B. F F 



