748 



I. Melocactioa. 



Melocactus, V. TSauhin. 

 ])iscocactus, I'fciffi'r. 

 Anhaloniiira, Lemaire. 



Ariocarpm; Sch. 

 Manunillaria, Uaworth. 



CACTACEvK. 



genera. 



It. Ecihnoca(;tid.<e. 



Echinocactus, L. et 0. 

 Astrophylum, Lem. 

 I Pelecyphora, C. Ehrcnb. 



III. CeREIDJE. 



Echinopsis, Zuccarini. 

 I t'Uocereus, Lemaire. 



ICereus, Haworlh. 



IV. Phyllanthid-i;. 



Phyllocactus, Link. 

 Epiphyllum, Pfiijf'er. 

 Disocactus, Lindley. 



V. RHfPSAI.ID/E. 



Hhipsalis, Gartner, 



1'osition. 



Numbers. Gen. 16. Sp. 800 ? ? 



Mesembryacece. 

 Cactace^e. — Luasacete. 



Orossulariacca. 



[Epigynous Exogens. 



llariota, Lemaire. 

 j Lepismium, P/eiffer. 



VI. OPUNTID/li. 



Opuntia, Tourne/orL 



VII. Pkreskid-I? 

 Pereskia, Plumier. 



ADDITIONAL GENERA. 

 Pfeiffera, Salm. near Rhipsalis. | Leuchtenbergia, Salm. near Anhaloniuru 





