Xysmalobium. |} ASCLEPIADE& (Brown). 
** Middle and upper leaves 4—14 times as long as 
broad, varying from linear to narrowly elongate- 
lanceolate or lanceolate : 
Leaves 14-54 in. long, 4-2 in. broad, crisped on 
the margins; corolla glabrous on the inner 
face : 
Corolla-lobes about 24 lin. long; corona- 
lobes about as long as broad, apiculate : 
Corona-lobes much shorter than the 
staminal column, suborbicular, with 
a very prominent keel on the inner 
face ; anther-wings 4 lin. long 
Corona-lobes nearly or quite as long as 
the staminal-column, cuneate-obovate 
or subquadrate, with or without a 
slight keel on the inner face ; anther- 
wings } lin. long oat wat di 
Corolla-lobes. 3} lin. long; corona-lobes 
twice as long as brond aH Wt Be 
Leaves 2-84 in. long, #-24 in. broad, with or 
without crisped or undulate margins; corolla- 
lobes erect or suberect, densely white-pubescent 
at the recurved tips on the inner face : 
Plant 3-14 ft. high; corolla glabrous out- 
side, with the hairs at the tips of the 
inner face not more than {}, lin. long 
Plant 3-5 ft. high; corolla pubescent or 
puberulous outside, with the hairs at the 
tips of the inner face 4-4 lin. long : 
Corolla-lobes 3-34 lins long; corona- 
lobes closely adpressed to the backs of 
the anthers... fee ‘es *e 
Corolla-lobes 43-6 lin. long; corona- 
lobes standing free from the anthers .. 
*** Leaves 14-3 (rarely 3-4) times as long as broad, 
all ovate, ovate-lanceolate, lanceolate, oblong or 
elliptic, 4-4 in. Jong : 
Umbels all sessile, numerous, racemosely ar- 
ranged along the stem, leaves elliptic or oblong 
Umbels pedunculate : 
Leaves usually oblong or elliptic, rarely 
lanceolate or ovate, glabrous; umbels 
numerous and racemosely arranged along 
the stout simple stem a x — 
Leaves ovate, lanceolate or oblong-lanceo- 
late, pubescent or scabrous on both sides ; 
plant branching at the base : 
Umbels 2 in # terminal pair, or 2-6 and 
racemosely arranged along the stems, 
occasionally solitary on weak branches; 
peduncles 3-14 in. long : 
Corolla-lobes suberect; corona- 
lobes not contiguous, about 
twice as long as broad, semi- 
terete or subtrigonous, slightly 
incurved-erect : : 
Corolla-lobes with a longi- 
tudinally divided gibbosity 
on the inner face... wos 
565 
(4) wiuterbergense. 
(5) brownianum, 
(6) gomphocarpoides, 
(7) stockenstromense. 
(8) ensifolium, 
(9) undulatum. 
(10) confusum. 
(11) orbiculare, 
(12) acerateoides. 
