Stapelia. | ASCLEPIADE (Brown). 997 
Outer corona-lobes about 3 times as long 
as they are broad at the middle, 
tapering to the tips or with parallel 
sides, minutely notched, very shortly 
bifid or very minutely 3-toothed at 
the apex : i oe ... (kK) retusa. 
Outer corona-lobes 2-24 times as long as 
rc they are broad at the middle, 
usually rather deeply bifid with 
parallel teeth and with or without a 
minute tooth in the notch: 
Corolla in mature (not young) bud flat- 
topped, without a point, when ex- 
panded flat on the back of the disk (a) trisulca. 
Corulla in mature bud conical, acute, 
when expanded not quite flat on 
the back of the disk sie -» (Cd) bufonia.. 
Base of the corolla-lobes not or scarcely more 
darkly coloured than elsewhere ; spots 
separate or not very conspicuously con- 
nected by slender purple-brown lines : 
Outer corona-lobes not much longer than 
broad, shortly bifid ... tas ... (b) marginata. 
Outer corona-lobes 2-3 times as long as 
broad : 
Expanded corolla quite flat on the back 
of the disk ; outer corona-lobes bifid, 
with parallel obtuse teeth ... -» (ce) planiflora. 
Expanded corolla more or less convex on 
the back of the disk : 
Outer corona-lobes bifid from 4 to 
more than half-way down, with 
diverging or subparallel teeth and 
with or without a minute tooth in 
the notch ,.. se «+ Ce) elypeata. 
Outer corona-lobes minutely 3-toothed 
at the apex, with the middle 
tooth shortest, all obtuse and not 
mere than } to } of the length of 
the lobe ; ground colour of corolla 
lemon- or faintly greenish-yellow (69) variegata. 
Outer corona-lobes very _ slightly 
= notched or very minutely and 
q _ equally 3-toothed at the apex ; 
ground colour of corolla light 
r yellow or rather bright sulphur- _ a 
yellow a: ae she woe Cj ) Curtesu. 
Var. a, trisulea (N. E. Br.) ; corolla in mature (not when younger) bud flat- 
or round-topped, not pointed ; disk flat at the back ; spots on the lobes irregular 
or more or less in longitudinal rows, more crowded at the base, with rather thick 
lines between them, producing a somewhat dark effect ; outer corona-lobes rather 
deeply bifid, with a minute tooth in the notch; otherwise as in the type. 
S. trisulea, J. Donn, Hort. Cantab. ed. 3, 43; Jacq. Stap. t. 33. 8. variegata, 
Blane, Hints on Cacti, ed. 1891, 96, with fig. S. normalis, Lindl. Bot, Reg. t. 755, 
not of Jacq. Orbea trisulea, Haw. Syn. Pl. Suce. 39. a = 
Coast Rearox: Cape Div. ; near Cape Town, cultivated specimens! 
