RHIPSALIS. 219 
Introduced into Jardin des Plantes, Paris, France, from Brazil. 
We have not seen this type material, but if plate 95 irr the Bliihende Kakteen is typical, 
our identification is correct. In the description accompanying this plate it is stated that 
the drawing was made from a plant sent by Mr. Weber to the Berlin Botanical Garden. 
Hariota bambusoides Weber (Dict. Hort. Bois 1048. 1898) was given as a synonym 
but was never described. 
Illustrations: Blithende Kakteen 2: pl. 95, as Hariota salicornioides bambusoides; 
Gartenwelt 13: 117, as Rhipsalis salicornioides bambusoides. 
Figure 220 is reproduced from the first illustration cited above. 
3. Hatiora cylindrica sp. nov. . 
Forming dense masses one meter in diameter or more; joints cylindric, 3 cm. long or less, 
pale green, becoming spotted or finally red throughout; flowers usually solitary, 12 mm. long; 
sepals ovate, short, red; petals orange to yellow, oblong, obtuse. 
Collected by J. N. Rose in company with Dr. Lofgren and Sefior Porto at Ilha Grande, 
Districto Federal, near Rio de Janeiro, July 22 to 24, 1915. 
Illustration: Arch. Jard. Bot. Rio de Janeiro 2: pl. 13, ad Rhipsalis bambusoides. 
Plate xxu1, figure 1, shows the plant collected by Dr. Rose on Ilha Grande, near Rio 
de Janeiro, which flowered in the New York Botanical Garden, December 18, 1918. 
\/ 2. 2 / 8. RHIPSALIS Gaertner, Fruct. Sem. 1 137. 1788. 
*Hariota Adanson, Fam. Pl. 2: 243. 1763. 
tCassytha Miller, Gard. Dict. ed. 8. 1768. Not Linnaeus, 1753. 
Cacti sometimes growing in humus, but usually epiphytic and hanging from trees, sometimes 
erect, sometimes clambering over rocks, more or less rooting or, when hanging, irregularly producing 
aérial roots; roots always fibrous; stems usually much branched (often heteromorphic), terete, 
angled or much flattened and leaf-like, very slender and thread-like or stout and stiff; leaves wanting 
or represented by minute bracts; areoles borne along margin of flat-branched forms, along ribs or 
scattered irregularly in other forms, usually small, bearing hairs, wool, bristles, and flowers; flowers 
usually solitary, but sometimes several from a single areole, opening night or day and remaining 
open for 1 to 8 days, small for the family; perianth-segments distinct, few, sometimes only 5, 
usually spreading, sometimes reflexed; filaments few or numerous, erect, slender, borne on outer 
margin of disk in one or two rows; style erect; stigma-lobes 3 or more, usually slender, spreading; 
ovary small, sometimes depressed or sunken in branch; fruit globular or oblong, sometimes angled 
when immature, but finally turgid, juicy, white or colored, usually naked (setose at areoles in 1 or 
2 species) or sometimes bearing a few scales; seeds small, few to many. 
Type species: Rhipsalis cassutha Gaertner. 
The generic name is from ply wicker-work, referring to the slender, pliable branches 
of the typical species. 
We recognize 57 species, although more than 115 names have been published. 
The species range from Florida, Mexico, and the West Indies through continental 
America to Argentina; only 2 species are found in Mexico; 1 in Florida; 2 are known in the 
West Indies; a very few in northern South America; 3 OF 4 only on the west coast of 
South America; and 5 or 6 in Argentina. The center of distribution is in the states of Rio 
de Janeiro, Sdo Paulo, and Minas Geraes, in southern Brazil. In the little state of Rio de 
Janeiro and chiefly about the city of the same name, Dr. Rose collected 15 species in 1915. 
The occurrence of species of Rhipsalis, in the wild state, in tropical Africa and in Ceylon, 
forms the only possible exception to the American natural distribution of cacti. Fight 
on Burmann’s plate of Plumier (pl. 197, 
* No species was cited by Adanson for his genus Hariota but it was based ul 
f. 2), which has been identified as Cactus parasiticus Lamarck, not Linnaeus. The type of Cactus parasiticus Linnaeus 
is a species of Vanilla, probably V. claviculata Swartz. — . . h ; ; 
i in hi ‘ ’ Dicti bed Rhipsalis cassutha under the name of Cassytha filiformis, 
t Miller, in his Gardeners’ Dictionary Of ga oes whelly different plant. Miller’s generic name. Cassytha, 
a name whi lready been published by Linn “a meee 
therefore, nati a misidentification, should not be treated as a synonym proper of Rhipsalis, although usually so cited. 
