CEPHALOCEREUS. 



57 



46. Cephalocereus brasiliensis sp. no v. 



Somewhat branching at base, i to 3 meters high, producing long, slender, weak branches, these 

 at first erect, but soon spreading or reclining, bright green when old, but when young somewhat 

 glaucous; branches at base nearly square in section, but toward the tip with 4, sometimes 5, promi- 

 nent obtuse ribs; areoles very close together, with long white hairs longer than the spines; radial 



spines several, very short, brown, spread* 

 ing, acicular; central spines generally sol- 

 itary, porrect, i to 2 cm. long; flowers 5 

 cm. long; fruit globular. 



Collected by Rose and Russell on 

 the base of Corcovado, Rio de Janeiro, 

 Brazil, July 10, 1915 (No. 20190). 



This plant is not uncommonly 

 found with Cephalocereus fltiwincnsis, 

 but is not as abundant as that species. 



In the open flats and valleys 

 toward Cabo Frio, Brazil, similar 

 plants occur, but they are stouter and 

 usually erect ; of these, flowers and fruit 

 were not obtained (Rose, No. 20705). 



Figure 84 is from a photograph 

 taken by Paul G. Russell of the type 

 plant. 



Fig. 84. 



Cephalocereus brasiliensis growing above 

 Cephalocereus fluminensis. 



eus phaeacanthus (Giirke). 



Fig. 85. — Flower of C. phaeacanthus 

 Fig. 86. — Fruit of same. X0.7. 



X0.7. 



Cereus phaeacanthus Giirke, Mouatsschr. Kakteenk. 18: 57- 



908 



Slender, usually branching at base, rarely branching above, more or less ereci, ouen 4 meters 

 high, the branches 4 to o cm, in diameter; ribs usuaUy 13, low, narrow, bearing approximate areoles 

 about 5 mm. apart, with acicular spines and smaU tufts of short white wool; spmes numerous, when 

 young yellowish brown, i to 1.5 cm. long; flowers 6 cm. long, slightly bent upward near the top of 

 the tube, the limb 6 cm. broad when fully expanded; perianth-tube and ovary bearmg several ovate 



stamens 



gments greenish brown ; inner perianth-segments 



cm. in diameter, smooth, somewhat tubercled; seeds 2 cm. long. 



Maracas 



Type locality: 



Distribution: In thickets, State of Bahia, Brazil. 



We have olac 



may 



It has very slender stems, low^ ribs, no long 



small 



from 



Brazil, in 1915. Figure 

 perianth. 



I 



