68 
OPUNTIEiE. 
0. setispina Engelm . (19.) 
— triacantha Haw. Pfr. Enum . p. 163. 
— orbiculata Nob. Pfr. Enim. p. 156. 
— — /?. Metternichii Nob. — 0. Metternichii Picol. 
ff Paucisetosae. Pulvillis parvulis subimmersis , setis 
perpaucis , varie coloratis , aculeisque instructis rigidis 
vel flexilibus , albis vel albidis. 
0. Karwinskiana Nob. — 0. Nopalilla Kario. ( 20 .) 
— megacantha Nob. Pfr. Enum. p. 160. — 0. leuco- 
sticta Wendl. Pfr. Enum. p. 167. 
/9. termispina Nob. — 0. lasiacantha Hort. Pfr. 
Enum. p. 160. — 0. leucacantha H. Dyck. 
— Amyclaea Ten. Pfr. Enum, p. 159. — 0. maxima 
Nob. — 0. Alfagayucca Karw. ( 21 .) 
— streptacantha Lem. ( 22 .) 
— candelabriformis H. Monae. Pfr. Enum. p. 159. ( 23 .) 
— — /?. rigidior Nob. 
— spinulifera Nob. Pfr. Enum. p. 157. (Exci. Syn. 0 . 
oligacanthce H. Vind.') (24.) 
— oligacantha H. Vind. ( 25 .) 
-:c- Subinermes. Articulis erectis, diffusis aut prostra- 
tis , ellipticis vel suborbiculatis, magnitudine variis, interdum 
pube obductis, pulvillis, praeter tomentum, setis quibusdam 
(rarissime numerosis) aculeisque instructis plerumque solita- 
riis , saepe omnino deficientibus. 
f Pubescentes. Articulis eredis vel decumbentibus , cu- 
ticula manifeste puberula ; pulvillis setosis pulvinatim 
convexis , lanigeris , aut tomento sis , aculeis quibusdam 
instructis , rarissime omnino deficientibus. 
0. mycrodasis Lehm. Pfr. Enum, p. 154. — 0. pulvi- 
nata DC. ( 26 .) 
