Descr.—A bushy, succulent perennial, 2-25 ft. high. 
Stems 13-21 in. thick, cylindric, with thirteen or more 
angles formed of contiguous spine-tipped tubercles, 
glabrous, pale glaucous-green. lowers arising in the 
grooves near the top of the stems, two to four (or more ?) 
together, successively developed. Pedicels } in. long, } in. 
thick, glabrous, purple-tinted. Sepals 4-4 in. long, subu- 
late-attenuate from an ovate base, glabrous. Corolla 34-5 
in, in diameter, saucer-shaped, obscurely lobed, with five 
subulate cusps, purplish-red, with ochreous-tinted rays on 
the central part, glabrous on the back, covered with erect 
purple hairs all over the inner face; the tube (enclosing 
the corona) very small, about 4 in. long, 4 in. in diameter 
outside, raised around the mouth into five dull red or 
sienna-red tubercles, and the orifice thickly roofed over 
with intermingling hairs, so that only very minute insects 
can enter. Outer corona exceeding the style-apex by half 
its length, resembling a five-grooved cup, with five pairs of 
deltoid, obtuse teeth nearly 4 line long, glabrous, dark 
purple-brown, shining. Inner coronal-lobes nearly 4 line 
long, oblong-linear, obtuse, closely incumbent on the 
anthers and not produced beyond them, dorsally connected 
brown, shining.—N. E. Brown. 
by partitions with the outer corona, glabrous, dark purple- 
Fig. 1, flower with the corolla removed, showing the corona; 2, mot 
the corolla-tube ; 3, pollen-masses:—all enlarged. 
_ 
ae 
