502 LXXXV. ASCLEPIADEE (BROWN). [ Stapelia. 
Corolla 1-14 in. in diam., pubescent on the outside and on the apical 
half of the lobes within, ‘‘chocolate-coloured ” (Capt. Lugard), maroon 
to ochre (Mrs. Lugard); tube rather small, 1} lin. long, and about 3 
lin. in diam.; limb rotate, 5-lobed to 4 the way down; lobes 5-7 lin. 
long, 33-5 lin. broad, ovate, acuminate, transversely rugose, glabrous 
on the basal half within. Outer coronal-lobes arising } lin. above the 
base of the staminal-column, x lin. long, 3 lin. broad, transversely 
oblong, very obtuse, entire; inner coronal-lobes 3 lin. long, oblong, 
acute, incumbent on the backs of the anthers. 
Mozamb. Dist. British Central Africa: Ngamiland; Kwebe, Lugard, 112! 
Kwebe Hills, 3200 ft., Ifrs. Lugard, 29! 
o7. DUVALIA, Haw.; Benth. et Hook. f. Gen. Pl. ii. 784. 
Calyx 5-partite. Corolla rotate-stellate, deeply 5-lobed ; disk raised 
and forming a ring or spurious tube (often more or less distinctly 
pentagonal) around the staminal-column ; lobes more or less folded length- 
wise and often into narrow vertical plates (replicate), usually horizontally 
spreading, valvate in bud. Corona double, arising from the top of the 
staminal-column ; outer corona in one piece, disk-like, pentagonal, rest- 
ing on the rim of the raised disk of the corolla and closing the tube 
formed by it; inner corona of 5 fleshy ovoid lobes, incumbent on the 
backs of the anthers, with a short dorsal projection, which is more or 
less curved upwards. Staminal-column arising from the bottom of the 
corolla ; anthers incumbent on the top of the style. Pollen-masses 
solitary in each anther-cell, horizontal, attached in pairs by short 
caudicles to lateral expansions of the pollen-carriers. Style not exceed- 
ing the anthers, flat and pentagonal at the apex. Follicles narrowly 
fusiform, acuminate, smooth. Seeds crowned with a tuft of hairs.— 
Dwarf succulent perennials of tufted habit. Stems thick and fleshy, 
decumbent or erect, 4—6-angled ; angles toothed ; teeth terminating in 
small acute or subulate leaf-rudiments, which are deciduous or persist 
and wither, and usually havea minute tooth (rudimentary stipule) on 
each side at their base. Flowers of moderate size, in sessile or subsessile 
cymes at the middle or base of the young shoots, 
Species several, mostly natives of South Africa, 1 in Arabia. 
Corolla-lobes ciliate with long clavate hairs at the 
base ¢ : ‘ ‘ ‘ s ‘ o Le DD; dentata. 
Corolla-lobes not ciliate . : : ; : . 2. D. transvaalensis. 
ED: dentata, NV. E. Br. in Kew Bulletin, 1895, 265. Stems 
branching at the base, 3-34 in. high, 6-angled, glabrous; angles with 
subulate pointed teeth 3—4 lin. long ; apical half of each tooth deciduous 
(being really a rudimentary leaf having a minute lateral tooth on each 
side), leaving a prominent conical tubercle. Cymes subsessile, from 
below the middle or near the base of the young shoots, few-flowered ; 
pedicels 3-1 lin. long, glabrous. Sepals } in. long, lanceolate-attenuate, 
glabrous. Corolla about 1} in. in diam., rotate ; disk raised, pentagonal, 
