ASCLEPIADEZ (Brown). 525 
XL. Ceropegia.—Outer corona always 1-seriate, cup-shaped and entire or 5-10- 
toothed, or of 5 bifid lubes often pouch-like at the base or reduced to minute 
pouches, or the lobes divided to the base and the halves adnate to the adjacent 
sides of the inner corona-lobes so as to apparently form 1 series of 5 trifid 
lobes opposite the anthers, or the halves or teeth of 2 adjacent lobes connate 
and forming 5 lobes immediately behind the inner corona-lobes which are 
shorter than, equalling or longer than the anthers, Pedwnele bearing 1 to 
many flowers in a cluster or umbel-like cyme or occasionally with pairs of 
flowers racemosely scattered slong it, or the clusters sessile or the flowers 
solitary or in pairs at the nodes. 
tt Corolla-tube not twice as long as its diameter at the middle, very rarely 
tubular and slightly inflated at the base, sometimes none. 
XXXVII. Tenaris.—Corolla-tube very short; lobes free, not reflexed. Outer 
corona of 5 small lobes or minute pouches; inner corona of 5 subulate, linear 
or filiform lobes shorter to longer than the anthers. Rootstock a tuber. Stem 
erect, slender. 
XLI. Brachystelma.—Corolla-tube campanulate or saucer-shaped or expanded 
nearly flat, very rarely shortly tubular; lobes free or united. Corona varying 
exactly as in Ceropegia. Rootstock a tuber or cluster of fleshy roots. Stems 
dwarf, erect or prostrate. Flowers small or of moderate size, few or many 
together in lateral or terminal clusters or umbel-like cymes, or solitary or in 
pairs at the nodes. 
Tribe VI, Srapgenism.—Anthers suberect or incumbent upon the style-apex, 
without appendages. Pollen and pollen-carriers as in Ceropegiex. Stems thick 
and fleshy, 3- to many-angled, usually dwarf, erect or procumbent or diving 
underground, tuberculate-tessellate, or toothed along the angles, leafless or the 
teeth tipped with rudimentary or small subalate fleshy leaves, or the tubercles or 
teeth stout and conical or spine-like or ending in slender bristles. Flowers 
fleshy. Corolla-lobes valvate in bud. Corona arising from the staminal column, 
none on the corolla. ‘ 
* Corolla-lobes connate at the tips. 
XLII. Pectinaria.—Stems decumbent or procumbent, often diving under- 
ground, 4-angled or tessellately tuberculate, with promineat buds in the axils 
of all the teeth or tubercles. Flowers small, developing between the tubercles 
or angles, Corona double, variable. 
** Corolla-lobes not connate at the tips. Stems without prominent buds 
in the axils of all the teeth or tubercles. 
+ Stems covered with crowded pointless tubercles or with 6 to many angles 
formed of closely-placed tubercles, each tipped with a slender spine or 
3 bristles, (See also Huernia Pillansii.) : : 
t Corolla-tube very small or none, Outer corona of 5 spreading bifid or 
bipartite lobes, concave or pouch-like at the base, or the lobes united 
into a cup with émarginate or bifid lobes. 
XLV. Trichocaulon.—Tubercles of the stem pointless or tipped with a simple 
slender spine. Corolla less than 3 in. in diam., lobed to half-way, with a very 
short tnbe just enclosing the corona or the united part very shallowly saucer- 
shaped without a tube. : ; 
XLVI. Hoodia.—Tubercles of the stem tipped with a simple slender spine. 
Corolla more than 1 in, in diam., cup- or saucer-shaped or nearly flat, sub- 
entire or obsoletely lobed, with 5 slender subulate points on the margin; tube 
a very small depression just enclosing the corona. 
tt Corolla-tube 14-3 in. long. Outer corona divided into 10 filaments 
terminating in knobs, 
XLVII, Tavaresia,—Tubercles of the stem tipped with 3 bristles. 
