OPUNTIA. 



^ 





95 



several, i cm. long or less; glochids at first inconspicuous, but in time very abundant, sometimes 2 

 cm. long, somewhat persistent; flowers not known; fruit globular, 2 to 2.5 cm. in diameter, spineless; 

 seeds pale, 4 mm. broad. 



Collected by J. N. Rose and Paul G. Russell on the dry hills at Potrcrillos, Mcndoza, 

 Argentina, September 2, 19 15 (No. 21002). 



This is a common species in the foothills of the Andes, in the Province of Mcndoza, 

 where it forms low mounds along with other cacti. 



Figure 1 1 1 represents joints of the type specimen above cited. 



A 



68. Opuntia corrugata Salm-Dyck, Hort. Dyck. 360. 1834. 



Opuntia eburnea Lemaire, Cact. Aliq. Nov. 35. 1838. 

 Opuntia retrospinosa Lemaire, Cact. Aliq. Nov. 35. 1838. 

 Opuntia parmentieri Pfeiffer, Allg. Gartenz. 6: 276. 1838. 



More or less cespitose; joints 3.5 cm. long, 8 to 12 mm. in diameter, orbicular to cylindric, often 

 erect, attenuate at both ends, light green, the terminal one often flattened; glochids minute, yel- 

 lowish; spines 6 to 8, acicular, 8 to 12 mm. long, white; flowers reddish; fruit red. 



Type locality: None given. 



Distribution: Northwestern Argentina, according to later writers. 



Lemaire (Cact. 88. 1868) uses the names Cactus corrugatus and C. cburncus, both of 

 which Schumann refers here. 



Tephrocactus retrospinosus Lemaire (Cact. 88. 1868) is placed by Lemaire in his third 

 section of Tephrocactus, but it is without description. It is doubtless the same as Opuntia 



retrospinosa Lemaire, which belongs here. 



Opuntia aulacothele Weber (Gosselin, Bull. Mus. Hist. Nat. Paris 10:392. 1904), 

 which was described without flowers or fruit, may be of this alliance. It comes from San 



Rafael, Argentina. 



Opuntia cornigata, mentioned in Bailey's Standard Cyclopedia of Horticulture (4: 2367 . 



191 6), is a misspelling of this name. 



Opuntia corrugata monvillei Salm-Dyck (Cact. Hort. Dyck. 1849. 72. 1850) was not 



described. 



Opuntia longispina Haworth (Phil. Mag. 7: m- 1830), when first described, was sup- 

 posed to have come from Brazil; the Index Kewensis refers it to Chile; while Schumann 

 treats it in a note under 0. corrugata as an Argentine species. It may not be an Opunita 



but a Maihuenia. 



Enum. Cact. 144- 1837. 



Opuntia ovallei Remy in Gay, Fl. Chilena 3: 29. 1847. 

 Opuntia grata Philippi, Linnaea 30: 211. 1859. 

 Opuntia monticola Philippi, Linnaea 33: 82. 1864. 



Low, branching, cespitose plants; joints yellowish green, 

 some deep purple when young, subcylindric to ellipsoid, 3 

 cm. long; spines 5 to 9, 4 to 10 mm. long, when young brown- 



curved 



Type locality: Mendoza, 

 Distribution: Mountains 

 Opuntia ovoides Lemaire 



(Cact. 88, 



I 



synonyms for Opuntia 



Fig. 112. — Opuntia ovala. X0.5. 



1839) and Cactus ovoides Lemaire 



This species forms low clump 



Dr. Rose found 



Mendoza and it has also been reported from 



some 



side of the Andes. Colonies differ in armament. In cultivation 

 elongated and club-shaped. 



Illustration: Schumann Gesamtb. Kakteen f. 105, as Opuntia grata. 



Figure 112 shows joints of the plant collected by Dr. Rose m 191 5 at Potrerillos, 



Argentina. 



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