212 THE CACTACEAE. 



nearly related to Kliipsalis. This view was taken by Schumann, who had labeled it 

 FJiipsalis peruviana Schumann (Vaupel, Bot. Jahrb. Engler 50: Beibl. iii: 19. 1913). 



The plant was collected by A. Weberbauer July 31, 1902 (Xo. 1353); a fragment of 

 the t3^e, which is in the Berlin Herbarium, was sent us by Dr. Vaupel in 1920. 



Figure 211 is from a photograph of a part of the type specimen now in the National 

 Herbarium at Washington. 



2. Acanthorhipsalis crenata (Britton). 



Hariota cre/iata* Britton, Bull. Torr. Club 18: 35. 



1891. 



Branches lateral, narrowly oblong, ven,- flat, obtuse, 20 to 30 cm. long, 3 to 6 cm. broad, 

 strongly crenate, with a stout central axis; areoles between crenations rather large, filled with 

 wool and bearing 3 to S spines, these 2 to 4 mm. long; flowers red, lateral, small; bern,- 7 mm. in 

 diameter. 



Type hcality: Yungas, BoUvia. 

 Distribution: Known only from the type locahty. 



A^Tien first described, this species was thought to be nearest the Brazilian Kliipsalis 

 platycarpa, which it resembles, but that species has no spines. 



Figure 212 is from a photograph of Dr. Rusby's herbarium specimen (Xo. 2047). 



Fig. 2 13. — Acanthorhipsalis monacantha. 



3. Acanthorhipsalis monacantha (Grisebach). 



Rhipsalis moyiacaniha Grisebach, Abh. Ges. Wiss. G6ttingea24: 140. 1S79. 

 Hartiotu monacantha Kuntze, Rev. Gen. PI. i: 263. 1S91. 



Epiphj-tic, branching; branches flat and thin, linear-oblong, 2 cm. broad, sometimes S dm. 

 long, obtuse, cuneate at base; serrate (acuminate says Schumann, but figured by him as obtuse); 

 areoles white-felted and spiny, spines i to 6, but usually only i or 2, 5 to 10 mm. long, yellow; 



flowers solitar}- at the areoles, lateral, white, i cm. long; fruit 

 white; seeds blackish, pitted, obovoid. 



Type locality: Oran, near San Andres, Argentina. 

 Distribution: Northern Argentiaa. 



rlobular, 8 to 10 mm. in diameter, 



* This name is printed H. cinerea in the Index Kewensis. 



