230 



the; cactace;ae. 



Our living specimens came from the Organ Mountains, Rio de Janeiro, Brazil, obtained 

 by J. N. Rose through Ph. Luetzelburg, September 21, 1915 (No. 21157). 



Dr. Rose examined the type collected by A. O. Darby in 1915 in the Museu Paulista 

 and obtained a fragment of it through the kindness of the Director. 



Rhipsalis pulcherrima Lofgren (Monatsschr. Kakteenk. 9: 136. 1899) seems to have 

 been the name first given to this plant. 



Illustration: Arch. Jard. Bot. Rio de Janeiro i: pi. 5. 



Plate XXXI, figure 2, shows a flowering branch of the plant obtained by Dr. Rose in 

 19 1 5 which flowered in the New York Botanical Garden in 19 18 (No. 21 151). 



18. Rhipsalis lumbricoides Lemaire, Illustr. Hort. 6: Misc. 68. 1859. 

 Cereus lumbricoides Lemaire, Cact. Gen. Nov. Sp. 60. 1839. 

 Rhipsalis sarmentacea Otto and Dietrich, AUg. Gartenz. 9: 98. 1841. 

 Lepismium sarmenlaceum Vochting, Jahrb. Wiss. Bot. Leipzig 9: 399. 1873. 

 Hariola lumbricalis Kuntze, Rev. Gen. PI. i: 263. 1891. 

 Hariota sarmentacea Kuntze, Rev. Gen. PI. 3^: 107. 1898. 



Fig. 224. — Rhipsalis lumbricoides. 



Stems terete when growing, but angled when dormant, 3 to 4 meters long, about 6 mm. thick 

 rooting freely, much branched; young growth with 5 to 10 white bristles from each areole, usually 

 spreading, but old branches naked; flowers white to cream-colored, sometimes tinged with green; 

 petals few, often only 5, lanceolate, acute, 10 to 12 mm. long, acuminate; style slender, greenish, 

 longer than the stamens; stigma-lobes 4, spreading, greenish; ovary naked; fruit white. 



Type locality: Montevideo, Uruguay. 



Distribution: Uruguay and Paraguay, also probably southern Brazil. Hooker says 

 that it is a native of Buenos Aires, but this is doubtless an error. 



This plant flowered in Washington on March 16, 1915. Schumann's drawing of the 

 flower is not very good. 



Rhipsalis sarmentosa (Monatsschr. Kakteenk. 4: 46. 1894) and R. larmentacea (Illustr. 

 Hort. 6: 88. 1859) are misspellings for R. sarmentacea. 



According to Lemaire (Cact. Gen. Nov. Sp. 60. 1839) Cereus flagelliformis minor Salm- 

 Dyck (Hort. Dyck. 64. 1834) belongs here. Grisebach (Symb. Fl. Argen. 139) referred 

 Cereus donkelaarii here. 



Illustrations: Martius, Fl. Bras. 4': pi. 59; Curtis's Bot. Mag. 85: pi. 5136; Diet. Gard. 

 Nicholson 4: 598. f. 60; Suppl. 635. f. 646; Engler and Prantl, Pflanzenfam. 3'^'': f. 69, D, 

 E; Gard. Chron. III. 2: 465. f. 95; Watson, Cact. Cult. 232. f. 90; ed. 3. f. 66, as Rhipsalis 

 sarmentacea; Schumann, Gesamtb. Kakteen 633. f. 98, F; Arch. Jard. Bot. Rio de Janeiro 

 i:pl. 3; Gartenwelt 13: 117. 



