CLASS XI. 

 1 C O S A N D R I A 



ORDER L 



MONOGYNIA, 



313. Cactus. 316. LythruMo 



314. Prunus. 316. CuPHEA. 



313. CACTUS. L. 



Calyx superior, many-cleft; segments imbricate* 

 Petals numerous, inserted in several series ; the inte- 

 rior ones larger. Stigma many-cleft. Berry 1 -celled, 

 many-seeded. Ge7u pi 838. Nu 1 1. Gen. I. p. 295. 

 Juss. p. 311. Lam. 111. t. 415. Nat. Ord. Cacti 

 Ju s s. Indian Fig, &c, 



C. Opuntia L. : articulately proliferous; articulations 

 compressed, ovate ; spines setaceous ; fruit succulent, smooth. 

 Willd. Sptc. 11. p. 943. M i c h. 11. I. p. ^282. Pursh 

 Fl. I. p. 327. Elliott Sk. I. p. 537. JV u 1 1. Gen. I. p. 

 297. Walt. Car. p. 146. 



Eodt perennial. Siems erect or procumbent, destitute of proper 

 leaves, articulate and proliferous ; joints very fleshy, 2 — 4 

 inches long, armed with tufts of setaceous spines, which are 

 all uniform. Flowers large, sessile, growing from the margin 

 of the joints. Segments of the calyx ovate-lanceolate, acu- 

 minate. Petals bright yellow, obovate, mucronate, much 

 longer than the calyx. Stamens very numerous ; ^laments 

 smooth ; anthers linear, yellow, incumbent. Style longer than 

 the stamens, thick ; stigma large, many-cleft. Fruit obovate. 



