HARRISIA. 



157 



This species has only once been reported as flowering, and then by Riccobono; our 

 description of the flowers is based on his. We have studied a small plant in the collection 

 of the New York Botanical Garden. 



Illustration: Schumann, Gesamtb. Kakteen f. 10. as Cercus ^latvpnnu<;. 



1909. 



16. Harrisia bonplandii (Parmentier) . 



Cereus bonplandii Parmentier in Pfeiffer, Enum. Cact. io8. 1837. 

 Cereus balansaei Schumann in Martins, Fl. Bras. 4*: 210. 1890. 

 Eriocereus bonplandii Riccobono, Boll. R. Ort. Bot. Palermo 8: 238. 



Stems slender and weak, at first erect, up to 3 meters high or more, sometimes procumbent, 

 arching or clambering, 3 to 8 cm. in diameter, strongly 4-angled; areoles 2 cm. apart; spines 6 to si 

 acicular, the longest 4 cm. long, when young red, in age gray; flowers 15 to 22 cm. long, white, closing 

 soon after sunrise; filaments numerous, borne almost to the base of the tube; style included; stigma- 

 lobes numerous; fruit edible, globular, 4 to 6 cm. in diameter, red, bearing large scales with hairs 

 in their axils, spineless, splitting on the side and exposing the white flesh and black seeds. 



Fig. 227. — Harrisia bonplandii. 



i 



I 



Type locality: Brazil. 



Distribution: Paraguay, Argentina, and Brazil. 



This species is widely cultivated, but under different names, one of which is Ccrctis 

 acutangulus. The only specimens from wild plants which we have seen were collected by- 

 Thomas Morong at Trinidad, Paraguay, and by J 



at Salta, Argentina. 



bonplandii brevispinus (Maass, Monatsschr 



I 



mentioned, but Mr. Wemgart 



Schumann's treatment 



Gesamtbeschreibung 



Kakteen (p. 136) he refers it to Cereus bonplandii. In the Nachtriige (p. 45) he puts 



I'. 



