. J-- 





J" ■ ■■ 







■- k 



OPUNTIA. 



135 



grows as if native ; on some of these hills it is the dominant 



same 



walls, where it has undoubtedly been planted. At Oruro, Bolivia, it was seen only in the 



especially at Combatata 

 walls about the yards. C 

 common and undoubted 



Juliaca 



Pampa 



ayrampo 



The seeds are collected in 



may be bought in the market 



must have been a time 



Ayrampo 

 of Peru. 

 knows, tl 



Mr 



ments made n< 

 dant is named 



One of the places in Peru where Dr. 



The 



yield a red substance 



which is used for coloring jellies and gelatine and, according to some, 

 for coloring wines. In former days the Indians also used this sub- 

 stance in some of their carnival ceremonies. The coloring matter 

 does not come from the seeds themselves, but from the red juice of 

 the fruit which has dried on the surfaces. 



Figure 169 represents a joint of this species collected by Dr. 

 Rose at Oruro, Bolivia, in 19 14. 



■ 



130. Opuntia microdisca Weber, Diet. Hort. Bois 896. 1898. 



P 



Forming small clumps, very much branched, prostrate; joints mostly obovate to oblong, 4 to 

 8 cm. long, usually much flattened, but sometimes nearly cylindric, grayish green; leaves minute, 

 purple, soon dropping off; areoles numerous, 5 to 6 mm. apart, rather large, when young densely 

 white-felted; spines 10 to 15, white to reddish, unequal, some of the centrals 1,5 to 2.5 cm. long; 

 glochids numerous, yellow ; flower-buds red; flowers 2.5 cm. long, bright red; filaments purple; style 

 white; stigma-lobes 6 to 8, short; ovary turbinate, 16 mm. long, bearing numerous areoles sub- 

 tended by narrow red leaves; areoles on ovary densely felted and 

 bristly; fruit red. 



Fig. 169. — OpunUasoehren.sH. 



X0.4. 



Type locality: In Catamarca 

 Distribution: Northern Arge: 

 Schumann 



Weber 



Tephrocactus. It evidently belongs to our Sul- 



-^ 4 mm 



. , t 



phureae, being nearest our 0. soehrensii. 



J 



Our description is 



from 



Concepcion, Argen- 



pplemented by a living specimen 



Dr. Spegazzini in 19 15. In Argentina this species also is 



know 



ayrampo 



Figure 170 represents a 



J 



Andalgala and Concepcion, Argentina 



ber 28, 1916 (No. 24). 



To this relationship may belong the following species: 



Opuntia penicii.i.igera Spegazzini, Anal. Mus. Nac. Buenos Aires 



Fio. 170. — Joint of Opuntia micro- 

 disca. X0.7. 



II. 4:291, 



I.OW. nearly prostrate; joints flattened, orbicular to broadly obovate, 10 to ^^^m- long. 7 to 

 10 cm. broad, dull green; spines slender, twisted, one elongated and i to 5 cm. l«"g'the others much 

 shorter, all white ; glochds brownish ; flowers from the lateral and margmal areoles, citron-> ellow , 



f.- 



<*< 



