242 



THK CACTACEAE. 



This species flowers in March. 



Rhipsalis coriacea, which originally came from Costa Rica, Schumann referred to R. 

 data of Jamaica, a plant of similar habit but yet very distinct. 



Illustration: Bull. Mus. Hist. Nat. Paris 8: 466, as Rhipsalis angustissima. 



Of plate XXXII, figure 4 shows a flowering specimen and figure 5 a fruiting specimen 

 from a plant collected by Wm. R. Maxon at Tunialba, Costa Rica, in April 1900, painted at 

 the New York Botanical Garden on April 12, 1912. 



47. Rhipsalis jamaicensis Britton and Harris, Torreya 9; 159. 1909- 



Pendent from trees, 3 to lo dm. long, the main axis angular; joints i to 4 dm. long, i to 2.5 cm. 

 broad, thin, dull green, bluntish at apex, narrowed into a short or elongated stipe at base, the margins 

 low-crenate; flowers yellowish green, about 6 mm. long; perianth-segments about 7, oblong to oblan- 

 ceolate, only a little spreading, obtusish ; ovary oblong, bearing a few small scales ; stamens 20 to 30 ; 

 style longer than stamens; stigma-lobes 3; fruit globose, 6 to 8 mm. in diameter, white, the scales 

 3 mm. broad. 



Type locality: Troy, Cockpit Country, Jamaica. 



Distribution: Forests of Jamaica. 



Illustration: Torreya 9: 158. f. 3. 



Plate XXII, figure 4, shows a plant with flowers and young fruit from Jamaica. 



48. Rhipsalis platycarpa (Zuccarini) Pfehfer, Enum. Cact. 131. 1837. 



Epiphyltum platycarpum Zuccarini, Cat. Cact. Monac. 1836. 



Cereus platycarpus Zuccarini, Abh. Baj-er. Akad. Wiss. Miinchen 2: 736. 1837. 



Hariota platycarpa Kuntze, Rev. Gen. PI. i: 263. 1S91. 



Branches broad and flat, i to 2 dm. long, 3 cm. broad 

 or more, dull green becoming red when grown in sunlight, 

 with broad deep crenations; flowers borne toward apex 

 of branch, i to 3 from an areole, 16 to 18 mm. long, 

 greenish yellow or dull white; petals 8 mm. long, ovate; 

 stamens white; stigma-lobes 5, white; fruit (doubtless im- 

 mature) naked, green, somewhat compressed, angled, 

 truncate. 



Type locality: Brazil. 



Distribution: Organ Moimtains, Brazil. 



We have obtained plants of this species from 

 Mr. Lamb at Manchester in 1904 and Dr. Rose 

 found it wild in the Organ Mountains of Brazil in 

 1915 (No. 21159). It grows well in cultivation but 

 it has never flowered with us. 



Illustrations: Pfeiffer and Otto, Abbild. Beschr. 

 Cact. I : pi. 17, f.2 ; Bliihende Kakteen 2: pi. 90. 



Figure 230 shows a branch of the plant obtained 

 by Dr. Rose in the Organ Moimtains. 



Fig. 230. — Rhipsalis platycarpa. X0.4. 



49. Rhipsalis russellii sp. nov. 



Hanging in great clusters from the horizontal branches of trees; branches strongly flattened, 15 

 cm. long, 5 to 6 cm. broad, cuneate at base, strongly crenate, dark green or purplish along margins; 

 flowers often 9 at an areole, minute; sepals few, obtuse, reddish at tips; petals usually 5, cream- 

 colored, obtuse, 2 mm. long; fruit usually i at an areole, smaU, globose, 5 to 6 mm. in diameter, 

 purple. 



Collected by J. N. Rose and Paul G. Russell near Toca da Onca, Bahia, Brazil, June 

 27 to 29, 1915 (No. 20106). This species suggests Rhipsalis elliptica, but has very different 

 flowers and fruit. 



