RHIPSALIS. ^ 243 



Of plate xxxvir, figures i to 4 are from the type specimen which has repeatedly 

 flowered and fruited in the New York Botanical Garden; figure i shows the tip of a flowering 

 branch; figure 2 shows a cluster of six flowers; figure 3 shows a flower enlarged four 

 diameters; figure 4 shows a fruiting branch. 



50. Rhipsalis elliptica Lindberg in Martius, Fl. Bras. 4^: 293. 1890. 



Rhipsalis chloroptera Weber, Diet. Hort. Bois 1045. 1898. 



Rhipsalis elliptica helicoidea Lofgren, Arch. Jard. Bot. Rio de Janeiro 2: 44. 19 18. 



Plants growing in clumps, at first ascending, often hanging from trees; joints flat and broad, 

 oblong to elliptic, 3 to 20 cm. long, 2 to 7 cm. broad, the margin faintly to strongly crenate; flowers 

 generally i, sometimes 2 or 3 at an areole, 12 mm. broad; petals usually 5, yellowish, widely spread- 

 ing, oblong, obtuse; filaments numerous, nearly erect, white; style white; stigma-lobes white, 5; 

 ovary not sunken in the branch ; fruit reddish, a little longer than broad, 6 to 7 mm. long. 



Type locality: Near Sorocaba, south of Santos, Sao Paulo, Brazil. 



Distribution: States of Sao Paulo and Santa Catharina, Brazil. 



Illustrations: Arch. Jard. Bot. Rio de Janeiro 2: pi. 16, as Rhipsalis elliptica helicoidea; 

 Bliihende Kakteen 2: pi. 104, as Rhipsalis chloroptera; Arch. Jard. Bot. Rio de Janeiro i: 

 pi. 15. 



Plate XXXV, figure 2, is from a plant collected by Dr. Rose at Jabaquara, near Rio de 

 Janeiro, Brazil, in 1915, which flowered in the New York Botanical Garden in 1916. 



51. Rhipsalis pachyptera Pfeiffer, Enum. Cact. 132. 1837. 



Cactus alatus Willdenow, Enum. PI. Suppl. 35. 1813. Not Swartz, 1788. 



Epiphyllum alatum Haworth, Suppl. PI. Succ. 84. 1819. 



Cactus triqueter YftWozo, Fl. Flum. 206. 1825. Not Willdenow, 1813. Not Haworth, 1803. 



Cereus alatus Link and Otto, Icon. PI. Rar. 77. 1830. 



Lepismium fluminense Miquel, Bull. Neerl. 48. 1838. 



Rhipsalis robusta Lemaire, Rev. Hort. IV. 9: 502. i860. 



Rhipsalis pachyptera purpurea Corderoy, Gard. Chron. III. 2: 468. 1887. 



Hariota triqueira Kuntze, Rev. Gen. PI. i: 263. 1891. 



Hariota pachyptera Kuntze, Rev. Gen. PI. i: 263. 1891. 



Hariota robusta Kuntze, Rev. Gen. PI. i: 263. 1891. 



Rhipsalis crassa Schumann, Keys 54. 1903. 



Stems much jointed, pendent ; joints often 3 to 6 dm. long, 5 to 7 cm. broad, thickish, stiff, 

 sometimes nearly orbicular, often purple, deeply crenate; flowers numerous, but solitary, rarely 

 2 to 4 from the areole, large; petals widely spreading, yellowish; stamens numerous; stigma-lobes 

 4 or 5, slender; fruit globose, white. 



Type locality: Originally given as the West Indies,* but this is doubtless a mistake. 



Distribution: States of Rio de Janeiro, Minas-Geraes, Santa Catherina, and Sao Paulo, 

 Brazil. 



The species grows in the high mountains on trunks of trees, altitude 1,000 meters, down 

 to nearly sea-level. 



A variety, crassior Salm-Dyck (Pfeiffer, Enum. Cact. 132. 1837), with thick green 

 orbicular joints, has been described. 



Steudel's name of Rhipsalis alata (Nom. ed. 2. i: 333. 1840), given as a synonym of 

 Cereus alatus De Candolle, is referred here by Schumann, but probably relates to Pseu- 

 dorhipsalis . 



This species was for a long time confused with Rhipsalis alata, a very distinct species 

 from Jamaica, now referred by us to the genus Pseudorhipsalis. 



Illustrations: Curtis's Bot. Mag. 55: pi. 2820,* as Cactus alatus; Vellozo, Fl. Flum. 5: 

 pi. 25, as Cactus triqueter; pi. 2i3> as to flower only; Link and Otto, Icon. PI. Rar. pi. 39, 

 as Cereus alatus; Monatsschr. Kakteenk. 6: 55; 7: 151, in part, as Rhipsalis robusta; 



*The plant, however, which Hooker described and figured (Curtis's Bot. Mag, 55: pi. 2820) as Cactus alatus and 

 which Pfeiffer cited in his original description, came from the Organ Mountains near Rio de Janeiro, Brazil. 



