RHIPSALIS. 237 
center of a purple blotch; flowers solitary at the areoles, rather large, rotate, white to pinkish; ovary 
naked. 
Type locality: Not cited. 
Distribution: Not known in the wild state. . 
Weber found this plant in cultivation under the name of Rhipsalis micrantha, but it is 
very different from the true R. micrantha which comes from Ecuador. 
Figure 226 shows a plant received from Paris in 1902 which flowered in the New York 
Botanical Garden on March 21, 1912. 
34. Rhipsalis trigona Pfeiffer, Enum. Cact. 133. 1837. 
Hariota trigona Kuntze, Rev. Gen. Pl. 1: 263. 1891. 
Stems stout, very much branched, 1.5 cm. in diameter, strongly 3-angled, the angles or ribs 
alternating with those of adjoining joints; flowers solitary, white to pinkish, widely spreading, 
sometimes 2 cm. broad; sepals usually 3, short, obtuse; petals generally 7, oblong, obtuse; filaments 
numerous, white; style white; stigma-lobes 4, white; ovary sunken in the branch; fruit globose, 8 
to 10 cm. in diameter, red. 
Type locality: Brazil. 
Distribution: Brazil. 
Wildeman states that the species is probably from the state of Rio de Janeiro. 
Illustrations: Wildeman, Icon. Select. §: pl. 193; Arch. Jard. Bot. Rio de Janeiro 1: 
pl. 23; Gartenflora 40: 38. f. 15, 16; Gartenwelt 13: 117. 
Plate xxx, figure 4, shows a plant sent to Dr. Rose by R. Lamb of Manchester, 
England, in 1914, which flowered and fruited in the New York Botanical Garden in 1919. 
35. Rhipsalis paradoxa Salm-Dyck, Cact. Hort. Dyck. 1844. 39. 1845. 
Lepismium paradoxum Salm-Dyck in Pfeiffer, Enum. Cact. 140. 1837. 
Hariota alternata Lemaire, Hort. Univ. 2: 39. 1841. 
Rhipsalis alternata Lemaire, Cactées 80. 1868. 
Hariota paradoxa Kuntze, Rev. Gen. Pl. 1: 263. 1891. 
Plants freely giving off aérial roots, branched, hanging in large clusters 1 meter long or more; 
branches in zigzag links, terminal, in pairs or in whorls of 3 to 8, more or less spreading, 3-winged, 
pale; flowering areoles very woolly, setose when young, borne at upper ends of ribs; flowers sub- 
terminal, large, 2 cm. long, white; ovary sunken in stem; fruit not seen. 
Type locality: Brazil. 
Distribution: Brazil, especially near the city of Sao Paulo, Brazil. 
The young growth is glossy green, the areoles subtended by broad round bracts. 
Seedling plants are very different from the adult plant; they are strongly 4-angled, with 
each angle bearing closely-set areoles, filled with slender bristles and showing no resem- 
blance to the typical form; gradually as the plants grow older their mature joints take on 
the normal form. This plant is a prolific bloomer and in the garden of the Museo Paulista 
it remains in flower for three weeks. 
Pfeiffer (Enum. Cact. 140. 1837) gives Cereus pterocaulis Hortus as a synonym of 
Lepismium paradoxum while Férster (Handb. Cact. 453. 1846) gives Rhipsalis pterocaulis 
as a synonym of R. paradoxa. 
Lepismium alternatum Hortus (Loudon, Hort. Brit. Suppl. 3: 576. 18 50) appeared as a 
questionable synonym of Lepismium paradoxum. 
Illustrations: Herb. Génér. Amat. II. 2: pl. 38; Hort. Univ. 2: pl. 50, as Hariota alter- 
nata; Engler and Prantl, Pflanzenfam. 3: f. 69, A, B; Schumann, Gesamtb. Kakteen 633. 
f. 98, B; Karsten, Deutsche FI. 887. f. 501, No. 4; ed. 2. 2: 456. f. 605, No. 4; Martius, FI. 
Bras. 47: pl. 55, f. 1; Arch. Jard. Bot. Rio de Janeiro 1: pl. 22; Goebel, Pflanz. Schild. 1: 
pl. 1, f. 5; Rev. Hort. 85: f. 152, in part; Karsten and Schenck, Vegetationsbilder 1: pl. 
6, f. ¢. 
Plate xxvul, figure 2, is from a plant received from La Mortola in 1908 which flowered 
in the New York Botanical Garden in 1916. 
