430 LXXXV. ASCLEPIADEZ (BROWN). | Fockea. 
tube 10, in two superposed series alternating with the longer teeth of 
the tube, upper series arising near the top of the tube and decurrent as 
keels within it, 1}-1} lin. long, linear, thicker than the teeth of the 
tube; lower series arising near the middle of the tube 4 lin. long. 
Staminal-column with scarcely any filament-part; anther-appendages 
large, about 3 times as long as the anthers, reaching slightly beyond the 
middle of the corona-tube, inflated-oblong, obtuse. 
Mozamb. Dist. British Central Africa: Ngamiland; on the Kwebe Hills, 
3000 ft., Lugard, 299! 
42, LEPTADENTIA, R. Br.; Benth. et Hook. f. Gen. PI. iii. 778. 
Calyx 5-lobed to the middle or nearly to the base. Corolla deeply 
5-lobed, rotate or with a very short campanulate tube and spreading 
lobes, valvate in bud, pubescent or bearded within. Corona of 5 short, 
transverse or rounded, fleshy lobes, tipped with a tuft of hairs, or with 
a subulate hairy point, inserted at the sinuses of the corolla. Staminal- 
column arising from the bottom of the corolla, sometimes with a slightly 
prominent inconspicuous undulate fleshy ring at the base; anthers 
incumbent on the top of the style, subhorizontal or suberect, without 
anappendage. Pollen-massessubhorizontal or suberect, solitary in each 
anther-cell, pellucid at the apex, attached in pairs by short caudicles to. 
the pollen-carriers. Follicles smooth. Seeds crowned with a tuft of 
hairs.—Shrubs, with twining or erect, rigid, much branched, rush-like 
stems. Leaves opposite or none, very variable in the same species. 
Cymes umbel-like, lateral between the bases of the leaves or 
subaxillary, subsessile or pedunculate, many-flowered ; flowers small. 
Species 5 or 6 ; one of the African species extends through Egypt into Arabia 
and India, besides 1 other in India and 1 in Madagascar. 
Leafy twiners. 
Corolla-lobes 2-2} lin. long, densely bearded inside 
with long jointed hairs. G 5 : . 1. LZ. lancifolia. 
Corolla-lobes 1-14 lin. long, pubescent inside . 2, L. heterophylla. 
Leafless shrubs. 
Branches terete, slender 5 3 A . 8. ZL. Spartium. 
Branches compressed, jointed : = ‘ . 4, L.? visciformis. 
1. L. lancifolia, Decne. in Ann. Sc. Nat. 2 sér. ix. 269, Stem 
twining, densely covered with a very minute tomentum. Leaves 
spreading ; petiole 1-3 in. long; blade 1-5 in. long, 4-1} in. broad, 
very variable in form, usually ovate, ovate-lanceolate or lanceolate, 
acute or acuminate, and cuneate, rounded or subcordate at the base, but 
sometimes subhastate-ovate or linear-oblong or linear, with a cordate, 
subhastate or rounded base, all forms occurring on different branches 
of the same stem, both sides puberulous, sometimes becoming glabrous 
on the upper surface, sometimes both sides become more or less s¢a- 
brous. Umbels lateral, pedunculate, many-flowered, minutely tomen- 
tose in all parts; peduncles 2-7 lin. long; pedicels 14-3 lin. long. 
Calyx 5-lobed nearly to the base ; lobes 1-2 lin. long. Corolla campanu- 
