OPUNTIA. 



25. Opuntia Uoydii Rose, Contr. U. S. Nat. Herb. 12: 292. 1909. 



Much 



branched, 2 to 3 meters high and nearly as broad; joints terete, 2 cm. in diameter; 

 tubercles prominent, oblong; spines few, on last year's joints 3, reddish, 1.5 cm. long; leaves terete, 

 6 to 8 mm. long; flowers 3 cm. long, opening after midday; petals 15 mm. long, dull purple; fila- 

 ments olive-green below, purplish above ; style rose-colored; stigma-lobes white; ovary yellowish, 

 strongly tuberculate, naked; fruit 3 cm. long, yellow to orange, slightly tuberculate. 



Type locality: On foot slopes, Hacienda de Cedros, Zacatecas. Mexico. 



Distribution 



ntral Mexico. 



E. lyloyd, for whom this species was named 



macho 



We 



under glass; these specimens have white areoles; no glochids are developed the first 



''1 



^J 



^\ 



y) 



// 



Fig, 77. — Opuntia lloydii. 



Fig. 78. — Opuntia lloydii. Photograpii by F. E. Lloyd. 



year, but on old branches dark-brown bunches of glochids are developed in the upper 

 edges of the areoles, and the several brownish spines are acicular. 



Illustration. 



of the type plant. 



Herb. 12: f. 34; pi. 25. 



specimen 



from 



\ 



imbricata 



1828. 



^ 



Cereus imhricalus Haworth, Rev. PI. Succ. 70. 182 1. 



Cactus cylindricus James, Cat. 1&2. 1825. Not Lamarck 1783. . ,. ,u 



Cactus hleo Torrey, Ann. Lye. N. Y. 2 : 202. 1828. Not Humboldt, Bonpland, and Kunth. 



0*««/m rojm De CandoUe, Prodr. 3:471- 1828. 

 Opuntia decipiens De CandoUe, Mem. Mus. Hist. Nat. Pans 17: 118. 

 Opuntia exuviata De CandoUe, Mem. Mus. Hist. Nat Pans 17 : i iS; 

 opuntia pxmnata avgustior De CandoUe, Mem. Mus. Hist. Nat. Pans 17: 118. 

 Opuntia exuviata spinosior De CandoUe, Mem. Mus. Hist. Nat. Pans 17: 118. 

 opuntia exuviata stellata Lemaire, Cact. Gcii. Nov. Sp. 67 1839- 



1823. 



1828. 

 1828. 



1828. 

 1828. 



v^^«„»t* ..v«c.«.« ...,^.^. Salm-Dyck, Cact. Hort. uycK. 1844. 48. 1845. 

 Opuntia arborescens Engelmann in Wislizenus, Mem. Tour North. Mex. 90. 

 opuntia imbricata crassior Salm-Dyck, Cact. Hort. Dyck. 1849. 249- i»50. 



1848. 



#- ^ 



