LXXX. ASCLEPIADER. 233 
10. KREBSIA, Harv., not E. and Z. 
Calyx 5-parted. Corolla bell-shaped, 5-parted ; segments 
very concave below, with reflexed, velvety, opaque apices. 
Corona 5-leaved ; folioles from a broad base, lanceolate-acumi- 
nate, erect, flat within, dorsally keeled, with inflexed apices. 
Anthers with large membranous tips, applied to sides of stig- 
ma. Stigma projecting, barrel-shaped, bluntly 5-angled, con- 
cave at summit. Follicles ? 
A branching undershrub, 6-12 inches high. Leaves narrow-linear, long, 
with revolute margins, glabrous. Peduncles interpetiolar, very short or 
obsolete; flowers umbellate, yellow-green, of mediocre size. This has 
nearly the corolla of Cordylogyne, but a very different corona and stigma. 
—Sent by Mrs. F. W. Barber and Mr. H. Bowker from Kreili’s country 
(No. 293), and by Mr. Gerrard from Buffalo River, Natal (n. 1309). The 
generic name is in honour of Herr Krebs, a meritorious collector of South 
African plants. 
11. MACKENTA, Harv. 
Calyx 5-parted. Corolla rotate, 5-parted, the lobes oblong, 
flat, spreading. Corona 5-leaved, the lobes subulate, acute, 
erect, longer than the gynostege, keeled, with a longitudinal, 
medial furrow on the face, the margins at base and that 
of the sinus reflexed. Anthers membrane-tipped. Stigma 
- pentagonal, flattish, with a 5-nippled umbo in the centre. 
Follicles inflated, solitary, covered with long, slender, plumose, 
soft shreds. 
Erect, hairy herbs, with the aspect of Schizoglossum atropurpureum and 
S. virens.—2 species, one sent by Mrs. F. W. Barber and Mr. Bowker from 
Kreili’s country, and by Dr. Sutherland from Natal; and both found at 
the Dargle farm by Mr. Fannin (n. 36 and 48). Named in honour of 
Mr. J. M‘Ken, Esq., Curator of the Botanic Gardens, Natal, a very zealous 
and successful collector of the plants of the Natal colony. i 
12. PERIGLOSSUM, Dene. 
Calyx 5-parted; sepals lanceolate. Corolla deeply 5-fid, 
the segments erect, oblong, conniving. Corona 5-leaved; fo- 
lioles cordate or oblong, flat, narrowed at base, obtuse, thick- 
ened in the middle, equalling the gynostege, bearing on the 
inner face a fleshy, adnate prominence. Anthers membrane- 
tipped. Pollinia compressed, linear or taper-pointed, pendu- 
lous. Stigma depressed, 5-angled—DC. Prod. viii. p. 520; 
Thes. Cap. t. 111. 
Erect, simple or branched herbs, with long, narrow-linear leaves, with 
revolute margins and terminal or interpetiolar peduncles, bearing dense 
heads of greenish flowers.—3 spevies, from Caffraria or Natal. 
