182 THE CACTACEAE. 
3. Epiphyllanthus candidus (Lofgren). 
Zygocactus candidus Lofgren, Arch. Jard. Bot. Rio de Janeiro 2: 30. 1918. 
Usually epiphytic on shrubs, but sometimes growing in the shade of large boulders; joints 
usually terete or nearly so, 2 to 4 cm. long, naked or sometimes bristly; flowers-solitary, terminal, 
white; fruit globose, red. 
Type locality: On Itatiaya, Brazil. 
Distribution: Known only from the type locality. 
Fic. 190.—Epiphyllanthus microsphaericus. Fic. 191.—Epiphyllanthus candidus. | 
Dr. Rose collected this species on the very top of Itatiaya, growing in the shade of 
rocks No. 20610) and in the deep cleft of the rock cap through which the ascent to the top 
is made. 
Epiphyllum candidum Barboso-Rodrigues (Arch. Jard. Bot. Rio de Janeiro 2: 30. 
1918) is only a name. 
I lustration: Arch. Jard. Bot. Rio de Janeiro 2: pl. 6, as Zygocactus candidus. 
Figure 191 is reproduced from the illustration cited above. 
/ 28) 3. SCHLUMBERGERA Lemaire, Rev. Hort. rv. 7 253. 1858. 
P Similar in habit to Zygocactus; stems much branched; joints short, crenate or serrate, mostly 
attened; flowers purple to scarlet, regular; tube very short+stamens in 2 clusters, one scattered 
pver t . throat, ane other forming a short tube at base of flower and surrounding style or free at 
b ©? Ovary and Iruit strongly 5-angled, naked or rarely bearing areole on one of the ribs and crowned 
y 5 more or less persistent, sepal-like scales; fruit hard, often remaining on plant for a long time. 
Type species: Epiphyllum russelianum Hooker. 
The taxonomic history of the two species here recognized is interesting. Schlumbergera 
gaerinert was at first supposed to be conspecific with S. russelliana and was made a variety 
