Acacia. | XLVTI, § MIMOSEH (OLIVER). 341 
free, twice as long as the calyx. Ovary glabrous, on a stipes of its 
own length. Legume not seen. 
Mozamb. Distr. Near Mitonda, Shire river, Dr. Kirk! 
5. A. leeta, R. Br.; Benth. in Hook. Journ. Bot. 1842, 508. A small 
or moderate-sized tree, wholly glabrous. Extremities brown, smooth, 
with short black and shining hooked infra-stipular prickles, or wholly 
unarmed. Leaves glaucous, scarcely exceeding 2-8 in. in length; 
ye lax in 2-8 pairs; leaflets oblanceolate- or obovate-oblong ob- 
1que, obtuse, often mucronulate, subsessile, in 3-5 pairs; }-} in. long, 
13-2 lines broad above. Spikes axillary, solitary or fascicled, equalling 
or exceeding the leaves. Flowers subsessile. Calyx broadly and 
shortly toothed. Petals at least at first united about 3 their length. 
Ovary glabrous, shortly stipitate. Legume flat, oblong, often once or 
twice constricted owing to abortion of seeds, obtuse or pointed; valves 
thinly coriaceous, transversely reticulate, glabrous, chortly stipitate, 
2-3 in. long, 3-1 in. broad.—Schweinf. Acacien-arten d. ‘Nilgebiets, 
367, t. 19, 20, 21; Reliq. Kotschyane, t. 1, 2. 
Nile Land. Abyssinia, Salt; Schimper! Nubia, Dr. Schweinfurth! 
6. A. venosa, Hochst.; Benth. in Lond. Journ. Bot. 1846, v. 98. 
Shrub or small tree, branches pale, wholly glabrous, or young shoots 
at first and peduncles puberulous. Infra-stipular spines very short, 
hooked, often wanting. Leaf-rachis 2-3 in., slender, with or without 
a small sessile gland near the base ; pinn in 3—5 (—7) subdistant pairs ; 
leaflets rather distant, 5-8-(-10) jugate, broadly oblanceolate obovate- 
oblong or oblong-obtuse, paler or glaucous beneath, minutely petiolu- 
late, 3-5 lines long. Spikes in axillary fascicles of 2-5, developed 
before or with the young leaves, 1-1} in. long. Flowers (rose-coloured) 
rather lax, sessile, glabrous, excepting the short obtuse calyx-lobes, 
Petals united to the middle, more than twice as long as the calyx. 
Legume linear-oblong, flat, straight, 4-6 in. long, #1 in. broad, valves 
continuous or slightly sinuous, thinly coriaceous, transversely reticulate, 
glabrous, 5~7-seeded.—A. sanguinea, Hochst.; A. Rich. Fl. Abyss. i. 
245; Schweinf. Acacien-arten d. Nilgebiets, 364. 
Nile Land. Abyssinia, Schimper! Capt. Pullen! 
?. A. Welwitschii, Oliv. A tree of moderate size; extremities 
wholly glabrous, dark-coloured, sometimes glaucous. png oom 
prickles, short, black, polished, hooked. Leaves about 3-5 in. long, 
glabrous ; rachis slender, with a sessile gland below the lowest pinne ; 
pinne 4~3-2-jugate ; leaflets elliptical or varying from ovate to ob- 
ovate, obtuse, obscurely apiculate or mucronulate, smooth or shining 
above, 4~3 in. long, 2-5 lines broad, in 3-6 pairs, minutely petiolulate. 
Spikes slender in bud, rather lax, 2 or 3 from each axil, or on short 
axillary leafless shoots sometimes panicled at the extremities. Flowers 
subsessile. Calyx campanulate, 5-fid. Petals free near the base, 
scarcely more than twice as long as the calyx. Legume straight, flat, 
