526 ASCLEPIADEE (Brown). 
+7 Stems obtusely or acutely 4-6- (or in Huernia rarely 8-24-) angled ; 
teeth of the angles not tipped with slender spines or bristles (except in 
Huernia Pillansii), but sometimes stout and conical with hardened 
spine-like tips. 
t Corolla with the angles between the lobes produced into distinct teeth. 
XLVIII. Huernia.—Corolla wholly campanulate or with a campanulate or 
globose-campanulate tube and spreading lobes or saucer-shaped limb, the latter 
sometimes raised into a ring around the mouth of the tube. Outer corona 
B-lobed or 10-toothed, adnate to the very base of the corolla, absent in one 
species. 
+t Corolla not produced into distinct teeth at the angles between the lobes. 
§ Corolla-tube with another tube within nearly as long as itself. 
L. Diplocyatha. Corolla large, with a campanulate tube and very spreading 
lobes, ciliate with vibratile clavate hairs. Outer corona of 5 spreading bifid 
lobes, Inner corona of 5 ovate acuminate lobes incumbent on the anthers and 
produced beyond them into short erect points. 
$§ Corolla-tube none or, when present, without another tube inside it. 
|| Outer corona present, distinct. 
XLIV. Caralluma.—Corolla-tube varying from almost none to campanulate or 
subglobose. Outer corona of 5 small lobes or pouches alternating with the 
anthers and more or less adnate at their base or sides to the inner coropa- 
lobes, rarely quite free to the base, usually bifid, sometimes so deeply that the 
whole corona appears to consist of 5 trifid lobes, or the lobes are united into 
an entire or 5-20-toothed ring or cup and connected to the backs of the inner 
corona-lobes. 
LI. Stapelia— Corolla usually star-like with a flattened or saucer-shaped disk, 
with or without a depression or cavity containing the corona or with a raised 
ring around it, rarely with a broad cup-like or shortly campanulate tube ; 
lobes flat or with revolute margins, never replicate. Outer corona-lobes 
_ always very distinct, free to their base, 
LIII. Duvalia.— Corolla with the disk raised into a tube-like rim supporting 
the corona; lobes more or less folded lengthwise (replicate) and often into 
narrow vertical plates. Outer corona in one piece, disk-like, subcircular or 
obtusely 5-10-angled (in D. angustiloba reduced to a mere margin), resting on 
or rarely below the rim of the raised ring on the corolla-disk and closing the 
spurious tube formed by it. Inner corona-lobes rhomboid-ovoid. 
|| || Outer corona none, (See also Huernia simplex and Duvalia angustiloba). 
XLIX. Huerniopsis.—Corolla-tube campanulate, as long as the lobes. Corona- 
lobes stout, square in transverse section below the middle, preduced above 
the anthers into subulate points, without a dorsal crest at their base. 
LII. Piaranthus.—Corolla-tube much shorter than the lobes or none. Corona- 
lobes not square in transverse section, with (or in P. grivanus without) @ 
thick dorsal transverse crest at the base. 
I. CRYPTOLEPIS, R. Br. 
Calyx 5-partite. Corolla with a campanulate tube ; lobes more or 
less twisted and overlapping to the left in bud, the angles between 
them usually provided with a small pocket-like flap within. Corona 
of 5 fleshy lobes arising from about the middle of the corolla-tube 
at some distance above the insertion of the stamens, alternating with 
the corolla-lobes. Stamens arising from the lower part of the 
corolla-tube ; filaments free; anthers more or less deltoid or 
