406 
Specimens examined: LOWER CALIFORNIA (Gab) 16 of 1867). 
Branching from a common base, but rarely more than a dozen stems together; 
never so crowded as many of its allies. 
64. Cereus alamosensis, sp. nov. 
Cylindrical, height and habit not known, with sharp irregular ribs 
and a solid woody axis: areole prominent, about 2 em. apart, hemi- 
spherical and densely covered with short reddish-brown wool (like pile 
on velvet), from which arise the ashy spines: radials 15 to 18, slender 
but rigid, rather unequal, radiantly spreading, straight or curved, 10 to 
20 mm. long; centrals usually 4, much stouter and longer, the 3 upper 
erect or divergent, the lowest (usually largest and often somewhat flat- 
tened) porrect to deflexed, all more or less angular, sometimes teretish, 
2.5 to 3.5 em. long: flowers red, funnelform, about 4 em. long: fruit 
unknown.—Type, Palmer 335 in Nat. Herb. 
Near Alamos, Sonora. 
Specimens examined: SONORA (Palmer 335 of 1890), 
65. Cereus bradtianus, sp. nov. 
Cylindrical, becoming 12 dm. high, the branches about 12 em, long 
and 4 em, in diameter: ribs 9, obtuse, slightly if at all tuberculate, 
with circular areole 10 to 15 mm. apart and bearing more or less per- 
sistent grayish tomentum: spines numerous, white and translucent, 
rigid and spreading in every direction; radials 15 to 18, slender, some- 
what unequal, more or less radiant, 10 to 12 mm. long; centrals 5 to 7, 
stouter, often subangular, quite unequal (usually 1 or 2 especially 
prominent), 15 to 30 mm. long: flowers yellow: fruit spiny.—Type in 
Herb. Coulter. 
Plains of Coahuila. 
Specimens examined: COAMUILA (Anna B. Nickels of 1895), 
The bright white spines on the vivid green body give the plant a striking appear- 
ance, Mrs. Nickels writes that the plant ‘‘sometimes covers a half-acre of ground, 
and seems to propagate by falling over on the ground and rooting all along the stem 
from which new plants sprout.” Mrs. Nickels requests that the species be named 
for Mr, Geo. M. Bradt, editor of The Southern Florist and Gardener,” of Louisville, 
Kentucky. © 
66. Cereus eruca Brandegee, P1. Baja Calif. 163 (1889). 
Prostrate, stout, simple or slightly branched, ( to 12 dm. long, 7.5 to 
16 em. in diameter, rooting from the under surface of the older growth, 
generally in patches of 20 to 30: ribs 13 to 21, with prominently pul- 
Vinate areola 4 to 15 mm. apart: spines stout, straight, ashy, stellate 
and interlocked; radials 1 to 3 em. long, terete; centrals 5 to 8, stouter, 
angled and somewhat flattened, the lowest one much flattened (often 3 
min, wide at base), keeled beneath, longer (3 em. or more), and strongly 
detlexed: flowers 10 to 12.5 em, long, said to be yellow: fruit globular, 
5em, in diameter, somewhat spiny, dull-red, acid and pleasant, with 
purple pulp: seeds very rough. (/ll, 1. ¢. t. 7)—Type, Brandegee of 
1889 in Herb. Brandegee. 
