TRICHOCERIiUS. 



141 



\ *■ 



Figure 203a shows a flower and figure 203& a fruit, collected by Dr. Shafcr near Salta, 



from 



in 1917 



14. Trichocereus fascicularis (Meyen). 



Cereus fascicularis Mcycn, Allg. Gartcnz. 1:211. 



Cactus fascicularis Meyen, Reise i : 447. 1834. 



Echinocactus fascicularis Steudel, Nom. ed. 2. 



1:536. 1840. 

 Cereus weherhaueri Schumann in Vaupcl, Bot. 



Jahrb. Engler 50: Beibl. iii: 22. 1913. 



Growing in large clusters made up of many 

 slender, erect or ascending branches, 2 to 4 meters 

 high; ribs about 16, low, rounded, separated by 

 narrow intervals; areoles filled with tawny felt, 

 closely set, large; spines numerous, at first yellow- 

 ish to brown; radial spines acicular, often only 

 I cm. long or less; central spines much stouter 

 and often 4 cm. long; flowers i from an areole, 8 

 to 1 1 cm. long, slender, somewhat curved near the 



base; ovary and flower-tube bearing small ovate scales, their axils filled with long white and brown 

 hairs; outer perianth-segments narrow, acute, passing into broader ones, simply mucronate, pinkish; 

 inner perianth-segments thinner and a little broader than the outer ones, obtuse, 1.5 cm. long, 

 greenish to brownish (not white) ; filaments numerous, slender, scattered over the narrow throat, 

 somewhat exserted; style bulbose at base, slender, 7 cm. long, exserted; stigma-lobes short, green- 

 ish; lower part of tube or tube proper 1.5 cm. long, somewhat scabrous within; fruit globular, 3 to 

 4 cm. in diameter, yeUowish to reddish, splitting open on one side and exposing the pulp; seeds 

 black, shining, 2 mm. long, a little longer than broad, minutely punctate. 



Type locality: Southern Peru. 



Distribution: Mountains of southern Peru and northern Chile, at about 2,300 meters 



Fig. 205. — Trichocereus fascicularis. 



altitude. 



common 



city, where it was collected by Dr. Rose in 1914 (No. 18781). 



This species, although recently described as new under the name oi Cereus wchcrbaucn, 



is the one described by Meyen in 1833 as 

 Cereus fascicularis. Meycn's description is 

 very unsatisfactory, but he does describe the 



Fig. 206. — Flower of Trichocereus fascicularis. Xo.7- 

 Fig. 207. — Fruit of same. X0.7. 



>it, number of ribs, and size of flowers, al 



Flower of Trichocereus huascha. 



X0.7. 



Fig. 208. 



Fig. 209. — Fruit of same. 



X0.7 



plant. A 



Erect, i6-angled, 4 feet high, somewhat 



jointed (3 to 4 joints) ; spines 8 or 9. in a radiating circle ; flowers 9 

 inches long, at the ends of the branches. 



or 10, white, 3.5 



