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15 
Leptocereus Leoni sp. nov. 
Plant up to 5 m. hi repented branching, the round trunk 
3 dm. in diameter at the base, the cortex scaly-roughened, the 
old areoles 1—1.5 cm. apart in елкы rows and bearing acicular 
spines. Ultimate branches about 1.5 cm. thick, slender, elon- 
gated, 6-8-ribbed, the ribs crenate, the areoles borne at the 
depressions, 1-1.5 cm. apart; spines 6-12 at each areole, yellowish 
when young, gray when old, slenderly acicular, 2-9 cm. long; 
wool brown, very short; perianth pink, withering- persistent 
narrowly campanulate, 3.5 cm. long; the limb about one four 
as long as the tube, which bears numerous FAST [те 
each with 1—4 short spines or some of them spineless; segments 
of the limb about 15, oblong-orbicular, obtuse; stamens very 
numerous; stigma not exserted; fruit globose-oval, 2 cm. in 
diameter, with a few scattered spine-bearing areoles; seeds black. 
Limestone cliffs, Sierra de Anafe, near Guayabal, extreme 
eastern part of the province of Pinar del Rio (Brother Leon, Nov. 
1911, 2810, type; 2802; Britton, Cowell & Leon 9594). 
Leptocereus arboreus sp nov. 
Plant up to 5 meters high, erect, much branched. Joints 3-10 
dm. long, 4-6 cm. wide, narrowed at base; ribs 4, narrow, thin, 
1.5-2 cm. deep, somewhat depressed between the areoles; areoles 
2.5-4 cm. or less apart; spines 10 or fewer, acicular, yellowish, 
becoming gray, radiating, the longer up to 5 cm. long; corolla 
short-campanulate, about 2 cm. long, almost enclosed in the 
bur-like ovary; petals cream-colored; fruit ellipsoid, 8-10 cm 
long, 5-6 cm. thick, its areoles bearing tufts of numerous light 
yellow spines. 
Rocky hillside, Punta Sabanilla, mouth of Cienfuegos Bay, 
Province of Santa Clara, February 24, 1910 (Bri ton, Earle & 
Wilson 4573, type); Castillo de Jagua, Cienfuegos Bay (Britton, 
Cowell & Earle 10298). 
Coryphantha cubensis sp. nov. 
Plants depressed-globose, tufted, 2-3 cm. broad, pale green. 
Tubercles numerous, vertically compressed, 6-7 mm. long, 4—5 
mm. wide, about 3 mm. thick, grooved on the upper side from 
the apex to below the middle, the groove very distinct; spines 
about 10, whitish, radiating, acicular but weak, 3-6 mm. long, 
those of young mamillae subtended by a tuft of silvery white 
