354 XLVII. § MIMOSEZ (OLIVER). 
A. verugera, Schweinf. Acacien-arten d. Nilgebiets, 340, tabb. 9,10. Tree at- 
taining 60 ft.; branches terete with a grey or greenish-grey bark, wholly glabrous. 
Stipular spines long, slender, straight and spreading. Leaves 2 in. long, more or less 
subglaucous, glabrous; pinne in 7-8 pairs, leaflets linear-oblong obtuse, in 20-30 pairs, 
1-1} lines long. Peduncles 4-1 in. long, in axillary fascicles of 4-8, occasionally from 
short lateral racemes; involucel minute, usually above the middle of the peduncle. 
Flowers capitate. Calyx-teeth short. Petals united 3 of their length. Ovaries sub- 
sessile, glabrous. Legume unknown. 
Nile Land. Southern Nubia, Fesoghlu, and on the Upper White Nile, Dr. 
Schweinfurth! 
In the last-received collections (1863-8) of Schimper from Abyssinia, are fruiting 
specimens which may helong to this species, certainly to no other here described from 
that country. The extremities are pubescent, the leaf-rachis thinly so, the leaflets 2 
lines long, and the legumes nearly straight oblong, 2-valved, with rather thick coria- 
ceous nearly smooth valves, 4 in. long, 1 in. or a little more in width ; like those of A. 
abyssinica on a large scale. 
Mr. Baines collected in South Tropical Africa (locality not given) an Acacia in fruit, 
which may be new. The fruits are detached, and there is nothing to show whether 
the inflorescence is capitate or spicate. The extremities, siender straight stipular 
spines and leaves are glabrous. Pinne 1-3-jugate, leaflets 8—14-jugate, oblong obtuse, 
coriaceous ; leaf-rachis very short, not exceeding }-3 in., with minute glands depressed 
in the centre between the pinne. The legumes are scimitar-shaped, much recurved at 
the apex, 3-5 in. long, 3-1 in. broad a little above the middle, thence gradually tapered 
to each end ; valves flat, coriaceous, covered with a dense grey tomentum. 
15. CALLIANDRA, Benth.; Benth. et Hook. f. Gen. Plant. i. 596. 
Flowers capitate, polygamous, 5—6-merous. Calyx campanulate, 
toothed or 5-fid. Petals united to about the middle. Stamens in- 
definite, filaments filiform, much exserted, more or less connate at the 
base; anthers minute, glandular-hairy or glabrous, “ pollen cohering 
in 2 or 4 masses in each cell.” Ovary sessile or subsessile, multiovulate, 
style filiform. Legume flat, straight or nearly so, linear, narrowed at 
the base, 2-valved, continuous with prominent sutural margins, valves 
coriaceous, separating elastically longitudinally from apex to base.— 
Shrubs or small trees, usually unarmed. Leaves bipinnate. Stipules 
persistent. Peduncles axillary, solitary or collected in racemes. 
A considerable Tropical American genus, with a solitary representative in Asia. 
The following plant appears identical, so far as it goes, with a common American 
species. It may be an accidental introduction. I have not seen the African plant in 
fruit. 
1. C. porto-ricensis, Benth. in Hook. Journ. Bot. 1844,99. Shrub, 
with slender, terete, somewhat virgate, glabrous branches. Leaves 
glabrous, or rachis (of $-3-4 in.) puberulous; pinne 2-4-jugate; 
leaflets linear-oblong, very oblique at base, broadly pointed, sessile, 
4-3 in. long more or less, in 8 or 10 to upwards of 30 pairs. Stipules 
oblong-lanceolate, persistent. Peduncles very slender at first, axillary 
or collected in lateral or terminal leafless racemes. Legume 2-3 in. 
long, } in. broad, much narrowed at base, obtuse, often mucronate ; 
valves abruptly and transversely depressed between the seeds when 
ripe; the sutural margins prominent continuous.—Acacia porto-ricensis, 
