144 



THE CACTACEAE. 



doubt. C. 



strigosiis spinosior Salm 

 ifispinus (Monatsschr. K 



act. Hort. Dyck. 1844. 27. 1845) and C. 

 7: 184. 1897) also belong here, and, per- 



spinibarbis flavidus (Labouret, Monog 



1853)- 



Illustration: Rep. Mo. Bot. Gard. 16: pi. 8, f. i, as Cereus strigosus. 

 Figure 211 is from a photograph taken by Dr. Shafer at Andalgala, A 



Fig. 2 1 1 . — Trichocereus strigosus. 



18. Trichocereus shaferi sp. nov. 



Cespitose, cylindric, 3 to 5 dm. high, 10 to 12.5 cm. in diameter, light green; ribs about 14, 10 

 to 15 mm. high; areoles approximate, 5 to 7 mm. apart, white-felted when young; spines about 10, 

 acicular, 12 mm. long or less, light yellow; flowers from the top of plant, 15 to 18 cm. long; tube 

 slender; outer perianth-segments linear; inner segments probably white; scales of the ovary and 

 flower-tube bearing long brown hairs. 



Collected by J. A. Shafer in wooded ravine, altitude i,8oo meters, near San Lorenzo, 

 Salta, Argentina, January ii, 191 7 (No. 44). 



(Weber) 



Weber 



1896. 



riants simple or cespitose, slender, 15 to 25 cm. high, 6 cm. in diameter, dark green, shiny; 

 ribs 14 to 18, low, 5 mm. high, somewhat crenate; spmes yellowish, flexible, 5 to 10 mm. long; radial 

 spines at first 9, in age more numerous; central spines 2 to 8; flower-bud pointed, covered with black 

 wool; flowers funnclform, several from the top of the plant, inodorous, 20 to 22 cm. long; scales on 

 the ovary and flower-tube with hairy axils; inner perianth-segments acute, oblong, white; fruit 

 edible, agreeable. 



Type locality: Tucuman, Argentina. 

 Distribution: Northwestern Argentina. 



former 



thmks It IS not an Echinopsis but a Cereus, 

 The flowers are not those of a true Cereus. 



Weber (Diet. Hort 



Monatsschr. Kakteenk. 15: 125, as Echinopsis 



synonym 



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