572 ASCLEPIADE& (Brown). [Xysmalobium. 
hairs ; leaves ascending, very shortly petiolate, 7-8 in. long, 1—-1$ in. 
broad, elongated ovate-lanceolate or linear-lanceolate, subacute, 
rounded or shortly cordate at the base, thinly pubescent on both 
sides, margins not very scabrid and not undulated; umbels several, 
the upper rather crowded, many-flowered, globose, 14 in. in diam. ; 
peduncle 1-12 in. long, erect, stout, hairy-pubescent ; bracts + in. 
long, subulate, pubescent ; pedicels 6-8 lin. long, subtomentose ; 
sepals 3 lin. long, 1 lin. broad, lanceolate, acuminate, channelled at 
the tips, pubescent ; corolla campanulate, 5-lobed nearly to the 
base, about 42 lin. in diam.; lobes 3-3} lin. long, 1} lin. broad, 
pubescent on the back, glabrous on the concave lower part within, 
densely bearded with white hairs 1—1 lin. long on the recurved tips ; 
corona-lohes 1-11 lin. long, 14 lin. broad, arising a little above the 
base of the staminal column, erect, closely applied to the backs of 
the anthers and reaching to the base of the anther-appendages, sub- 
orbicular, flat, fleshy, obtusely gibbous-keeled on the baek, and 
having a very slight linear keel on the face at the base ; staminal 
column about 2 lin, long; anthers subquadrate, with the wings 
produced into deltoid truncate teeth; anther-appendages ovate, 
acute, inflexed-connivent over the short conical obtuse style-apex ; 
pollen-masses scarcely 1 lin. long, roundish-pear-shaped, attached 
to the black ovoid pollen-carrier by rather long crooked caudicles ; 
follicles not seen. X. undulatum, R. Br., var., Scott-Elliot in Journ. 
Bot. 1890, 364. 
Katanart ReGion: Griqualand West, Herbert Div.; at upper Campbell, 
parent 1834! Bechuanaland; near the sources of Kuruman River, Burchell, 
91 
In habit, foliage, and flowers, this is exceedingly like X. wndulatum, R. Br.; 
the flowers, however, are considerably smaller, and the corona-lobes are quite 
different, the stout fleshy keel, present on the upper part of the face in x. 
undulatum, being entirely absent in X. ensifolium, and the lobes themselves are 
pressed close to the anthers; the pollen-masses are also different in the two 
species. 
9. X. undulatum (R. Br. in Mem. Wern. Soc. i. 39); stems 
3-5 ft. high, stout, erect, hairy-pubescent ; leaves more or less 
ascending, subsessile or with very short stout petioles, 4-8} in. long, 
11-3 in. broad, elongated, lanceolate or ovate-lanceolate, or some- 
times ovate, obtuse with a short point, or subacute, rounded or more 
or less cordate at the base, pubescent on both sides, scabrid along 
the margins, which are often undulated ; umbels several, the upper 
often crowded, ‘many-flowered, globose, 13-2} in. in diam. ; pe- 
duncles 1—12 in. long, erect, stout, hairy-pubescent ; bracts about 
3 lin. long, subulate, pubescent; pedicels 3—3 in. long, hairy-pubes- 
cent ; sepals 3-4 lin. long, 12-14 lin. broad, lanceolate, acute, 
pubescent ; corolla globose-campanulate, 5-lobed nearly to the base, 
6-7 lin. in diam. ; lobes 43-6 lin. long, 21-3 lin. broad, oblong, 
acute, pubescent outside, glabrous in the concave lower part within, 
dull green (Rand), densely bearded with white hairs }—} lin. long on 
the recurved tips; corona-lobes 13 lin. long, 13-2} lin. broad, 
