308 LXXXY. ASCLEPIADEX (BROWN). [ Yysmalobium. 
flowered; peduncles subequal, #—1 in. long, whitish-tomentose ; bracts 
about 2 lin. long, subulate, deciduous, densely pubescent; pedicels }-% 
in. long, whitish-tomentose. Sepals 2} lin. long, # lin. broad, oblong- 
lanceolate, acute, pubescent on the back. Corolla lobed nearly to the 
base, campanulate, apparently white, glabrous outside, densely bearded 
within on the upper half with white hairs; lobes 24—23 lin. long, 1} 
lin. broad, oblong or ovate-oblong, sub-acute, recurved at the tips. 
Coronal-lobes arising at the base of the staminal-column and a little 
shorter than it, erect, 11-1} lin. long, 1 lin. broad, ovate-rhomboid, 
obtuse, dorsally flattened, moderately thick and fleshy, with a slight 
obtuse keel down the inner face; alternating with them are 5 minute 
teeth. Staminal-column 13 lin. long, with the filaments free above the 
attachment of the coronal-lobes; anther-appendages ovate, subobtuse, 
inflexed over the truncate apex of the style. 
Lower Guinea. Angola: Amboella; at the mouth of the River Kuebe, 
3700 ft., Baum, 332 ! 
12. X. angolense, Scott-Elliot in Journ. Bot. 1890, 365. Stem 
1-2 ft. high, stout, erect, thinly pubescent with curved hairs. Leaves 
ascending or incurved-ascending ; petiole 1-3 lin. long; blade 2}-9 in. 
long, }-1 in. broad at the base, gradually tapering from the 
truncate or subhastate base to an acuminate point, more or less 
scabrid on both sides; margins slightly thickened, not revolute, 
scabrid. Umbels pedunculate, several-flowered, lateral and terminal or 
somewhat clustered at the top of the stem; peduncles }—? in. long, 
pubescent ; pedicels 4~7 lin. long, pubescent ; bracts 3-5 lin. long. 
linear-lanceolate, acuminate, pubescent. Sepals 3-34 lin. long, 1-1; 
lin. broad, erect, flat or with revolute margins at the base, lanceolate, 
acute, pubescent, “very pale yellow” (Welwitsch). Corolla-lobes ? jin. 
long, 3 lin. broad, ovate-oblong, acute, concave, suberect, with recurvec 
tips, densely bearded with white hairs on the apical part within, other- 
wise glabrous, “ dull violet outside, whitish within ” { Welwitsch). Coro- 
nal-lobes arising at the base of the staminal-column, 14-2 lin. long @® 
the same in breadth, erect, fleshy, broadly ovate or subcordate-ovate, 
subobtuse, flattened, with recurved margins at the base, keeled on the 
face, “ violet” (Welwitsch). Anthers erect, oblong, their appendages 
ovate, acute, erect, applied to the sides of the apical part of the style; 
this last is 14-1} lin. long, stout, very obtuse or slightly dilated at the 
top, produced beyond the anther appendages, “ violet” (Welwitsch). 
Follicles 2-2} in. long, 6-74 lin. thick, lanceolate, acute, setose 2h” 
pubescent.—K. Schum. in Engl. & Prantl, Pflanzenfam. tv. 232 ; 
Hiern. in Cat. Afr. Pl. Welw. i. 682. X. prismatostigma, K. Schum. 
- Engl. Jahrb. xvii. 120, and in Engl. & Prantl, Pflanzenfam. 19. 
Lower Guinea. Angola: Huilla; in damp meadows near Humpats, ® 
swampy places along streams near Huilla, Welwitsch, 4170! in the damp pastures 
Catumba, towards Ohai, Welwitsch, 4171! Malange, Mechow, 329! 
and 
13. HK. sessile, Decne. in DC. Prod. viii. 519. Stem herbaceous 
