RHIPSALIS. 225 



This is a very attractive little plant, often forming a dense mass of delicate branches. 

 It is a rather shy bloomer, but grows well in damp greenhouses. 



Illustration: Gartenwelt 13: 117. 



Plate XXVI, figure 4, is from a plant obtained in the Botanical Garden at Brussels by 

 Dr. Rose in 19 12, which flowered and fruited in AVashington in 19 19; figure 3 shows a 

 plant sent from Paris, France, which flowered in the New York Botanical Garden in 1911 

 (No. 14795); figure 2 is from a plant sent by R. Lamb, from Manchester, England; plate 

 XXV, figure 3, shows a fruiting plant sent from Paris in 1901. 



9. Rhipsalis burchellii nom. nov. 



Rhipsalis cribrata Lofgren, Arch. Jard. Bot. Rio de Janeiro i: 81. pi. 10. 1915. Not Riimpler, 1885. 



Much branched, very weak, with long slender hanging branches, the branching usually dichot- 

 omous; ultimate branches usually 4 to 10 cm. long; flowers subterminal, campanulate, 10 to 12 mm. 

 long, white; fruit turbinate, rose-colored. 



This plant is very common in the forests about Sao Paulo. Dr. Rose collected it in the 

 forest of Jabaquara, August 15, 1915 (No. 20857, type), and also in the Botanical Garden 

 of Museu Paulista on August 14, 19 15 (No. 20849). 



This species is named for Wilham John Burchell (1781-1863), who went to Brazil in 

 1825, where he made large and valuable collections. 



Plate XXVII, figure 2, shows a fruiting branch taken from Dr. Rose's plant No. 20857. 



10. Rhipsalis cribrata (Lemaire) Riimpler in Forster, Handb. Cact. ed. 2. 889. 1S85. 



Hariola cribrata Lemaire, Illustr. Hort. 4: Misc. 12. 1857. 



Rhipsalis pendula Vochting, Jahrb. Wiss. Bot. Leipzig 9: 371. 1873. Not PfeifFer, 1837. 



Rhipsalis penduliflora N. E. Brown, Gard. Chron. II. 7: 716. 1877. 



Hariota penduliflora Kuntze, Rev. Gen. PL i: 263. 1891. 



Rhipsalis cribrata filiformis Engelhardt in MoUers, Deutsche Gart. Zeit. 18: 585. 1903. 



Woody at base, much branched; branches of two forms; stems terete, elongated, at first erect, 

 then hanging, without aerial roots; terminal branches very short, 2 to 3 cm. long, usually in whorls 

 of 2 to 20; areoles small, often with i or 2 small setae; flowers generally terminal, pendulous, white 

 or cream-colored, 8 to 10 mm. long; petals usually 5 to 7, obtuse, drying yellow; filaments erect, 

 numerous, white, salmon-colored at base; style white; stigma-lobes 3 or 4, spreading, white; ovary 

 naked; fruit small, globose, 2 to 3 mm. in diameter, pinkish, terminated by the old perianth. 



Type locality: Brazil. 



Distribution: States of Minas Geraes, Rio de Janeiro, and Sao Paulo, Brazil. 



This species was introduced into Europe in 1856 from Brazil, as some of the other 

 species have been, through sendings of orchids, where it was discovered by Eemaire, and 

 when it flowered the following year it was named and described by him. 



Hariota penduliflora (Monatsschr. Kakteenk. i: 69. 1891) is listed but not described. 



Rhipsalis penduliflora laxa, referred to by Schumann (Martins, Fl. Bras. 4- : 276. 1890), 

 comes from the gardens at Kew. 



Illustrations: Mollers Deutsche Giirt. Zeit. 18: 585, as Rhipsalis cribrata flliformis; 

 Bliihende Kakteen i : pi. 27, a; Arch. Jard. Bot. Rio Janeiro i : pi. 9, as R. penduliflora. 



Plate XXIII, figure 3, shows a fruiting branch collected by Dr. Rose in Rio de Janeiro in 

 1915 ; plate xxvi, figure i, shows a flowering branch obtained by Dr. Rose in Rio de Janeiro. 



11. Rhipsalis cassutha* Gaertner, Fruct. Sem. i: 137. 1788. 



Cassytha filiformis Miller, Gard. Diet. ed. 8. 1768. Not Linnaeus, 1753. 

 Cactus parasiticus Lamarck, Encycl. i: 541. 1783. Not Linnaeus, 1768. 

 Cactus pendulus Swartz, Prodr. 77. 1788. 



* The original spelling given by Gaertner is as above. The usual spelling, however, is R. cassytha. 



