224 THE CACTACEAE. 



becoming brown, produced in terminal whorls of 2 to 7; areoles few, sometimes bearing i to 5 white 

 hairs; flowers near end of branches, white, 1.5 cm. long; petals hardly spreading; fruit spherical, 

 6 mm. in diameter, white or yellowish; seeds 1.5 cm. long. 



Type locality: Petropolis, in the state of Rio de Janeiro, Brazil. 



Distribution: State of Rio de Janeiro. 



This species is much like Hatiora and it was really referred to Hariota at one time by 

 Weber, himself. Schumann gives only one locality for it, but Dr. Rose found it on Corcobado 

 in Rio de Janeiro, altitude 465 meters, growing on branches of trees, and on this plant the 

 description has been partly based. Weber's manuscript name, Hariota clavata, has appeared 

 only as a synonym of this species (Monatsschr. Kakteenk. 5: 172. 1895). 



Illustrations: Arch. Jard. Bot. Rio de Janeiro 2: pi. 17, as Rhipsalis clavata delicatula; 

 Arch. Jard. Bot. Rio de Janeiro i: pi. 13; Mollers Deutsche Gart. Zeit. 25: f. 11, No. 16. 



6. Rhipsalis campos-portoana Lofgren, Arch. Jard. Bot. Rio de Janeiro 2: 35. 1918. 



Stem slender, terete, usually pendent, usually dichotomous ; primary branches elongated ; ter- 

 minal branches in 2's or 4's, somewhat clavate, 3 to 5 cm. long; areoles few, naked; flowers terminal 

 or usually so, white; petals about 8, slightly spreading, obtuse, up to 9 mm. long; fruit globose, 4 

 mm. in diameter, red. 



Type locality: Serra de Itatiaya, Brazil 



Distribution: Known only from the type locality. 



This plant was collected by Dr. Rose and Campos Porto in July 19 15 (No. 20612) and 

 flowered in the Jardim Botanico do Rio de Janeiro in September of that year, and from this 

 the description was drawn. Dr. Rose brought home living specimens but these have not 

 yet flowered. 



Illustration: Arch. Jard. Bot. Rio de Janeiro 2: pi. 7. 



7. Rhipsalis heteroclada nom. nov. 



Stems stiff, dark green, but purple about areoles and tips of branches, often erect in cultivation, 

 much branched toward top of plant; branches often in verticillate clusters, much more slender 

 than the main stem, i to 2 mm. in diameter; areoles small, often bearing a single bristle; 

 flowers small, white or greenish; petals 5, obtuse, spreading or recurved; filaments about 20, white, 

 erect; style white, sunken at base into a little cup; stigma-lobes 3, white; ovary green, about 2 

 mm. long; fruit globose, 5 to 6 mm. in diameter, white. 



This plant is very common in Brazilian collections, where it is planted on fruit trees. 

 Dr. Rose found some beautiful examples in the Horto Bolanco Paulista, near Sao Paulo, 

 and on Ilha Grande (Rose 20371, type). 



Plate XXIII, figure 2, shows a fruiting branch obtained by Dr. Rose in Rio de Janeiro; 

 plate XXV, figures i and 2, shows fruiting plants collected by Dr. Rose in Rio de Janeiro; 

 plate XXXII, figure i, shows a fruiting plant obtained by Dr. Rose in Rio de Janeiro. 



8. Rhipsalis capilliformis Weber, Rev. Hort. 64: 425. 1892. 



Rhipsalis gracilis N. E. Brown, Gard. Chron. III. 33: 18. 1903. 



Stems and branches very slender and weak, the main branches often much elongated, the 

 branchlets short, spreading or drooping; flowers numerous, scattered along sides of branches, cream- 

 colored, rotate, 5 to 6 mm. broad; petals few, sometimes only 5, short and obtuse; fruit globose, 

 naked, white or pinkish, 4 to 5 mm. in diameter; seeds very numerous. 



Type locality: Not cited. 



Distribution: Eastern Brazil, but not known to us in the wild state. 



