RHIPSALIS. 223 
Type locality: Not cited, but Forster and Weber state that it came from Brazil. 
Distribution: Brazil and northern Madagascar, but range not known. 
Weber thought that Rhzipsalis tetragona was the same as R. prismatica Riimpler, but 
because he was not certain he described it as new. 
Illustration: Gartenwelt 16: 634, as Rhipsalis suareziana; Monatsschr. Kakteenk. 18: 
74, as R. tetragona. 
Plate xxxu, figure 3, shows a plant from Berlin which flowered in the New York 
Botanical Garden on November 23, 1915. 
Fic. 221.—Rhipsalis cereuscula. 
4. Rhipsalis simmleri Beauverd, Bull. Herb. Boiss. II. 7: 136. 1907. 
Stems pendent, cylindric, 2 to 3 mm. in diameter, very much branched, the branches dichoto- 
mous or 3 or 4-verticillate, upper short and somewhat angled, quite unlike lower ones; flowers 
solitary, subterminal; petals white with pink tips, oblong, 6 to 8 mm. long; filaments 5 to ® mm. 
long, white, filiform; style exserted, 9 mm. long; stigma-lobes ovate, reflexed, white; ovary obconic, 
3 to 3.5 mm. in diameter; fruit white. 
Type locality: Costa Rica. 
Distribution: Costa Rica. 
This species is named for Paul Simmler, 
Geneva, Switzerland. The plant was introduc 
and flowered in cultivation. Dr. Rose saw it w 
fragment, but he did not see it in flower. 
Illustration: Bull, Herb. Boiss. II. 7: 137. 
chief gardener of the Boissier Collections at 
ed in a collection of orchids from Costa Rica 
hen in Geneva in 1912 and obtained a small 
5. Rhipsalis clavata Weber, Rev. Hort. 64: 429. 1892. | 
Rhipsalis clavata delicatula Lofgren, Arch. Jard. Bot. Rio de Janeiro 2: 45. 1918. 
often a meter long or more, much branched; joints all 
Erect when young but soon mee a gled when young, short, 1 to 3 cm. long, deep green, 
similar, narrowly clavate, sometimes 4-an 
