Acacia.] xlvii. § mimose^e (oliver). 353 



leaflets in 8-12 pairs, linear-oblong, obtuse, 1|-3J lines long. Peduncles 

 1-5 from each axil, slender, bearing a small involucel near or a little 

 below the middle. Flowers capitate. Calyx-teeth short. Petals twice 

 as long as calyx. Legume flat, coriaceous, narrow-linear, spirally 

 twisted, rather strongly longitudinally nerved, glabrous, 3-6 in. long, 

 2J-3 lines broad. — A. fasciculata, Guill. et Perr. Fl. Seneg. i. 252 ; 

 Benth. in Hook. Journ. Bot. 1842, 502. A. Raddiana, Savi, Acacie 

 Egiziane, i. (fide Schweinfurth). 



Upper Guinea. Senegambia, Heudelot! 



Nile Land. Nubia, Dr. Schweinfurth. 



Also in Egypt ! and Arabia. 



DOUBTFUL SPECIES WITH SPICATE FLOWERS. 



A. Rovumse, Olio. Extremities puberulous. Infrastipular spines short, scarcely 

 recurved in our specimen. Leaves 4-6 in. long, pubescent or puberulous, rachis with a 

 sessile gland towards the base ; pinnae 7-9-jugate, leaflets 15-30-jugate, oblong obtuse, 

 sometimes obliquely mucronulate, %-\ in. long, about 1 line broad. Spikes axillary, 

 equalling or shorter than the leaf; flowers sessile Legume linear-oblong, com- 

 pressed, straight, 4-6 in. long, nearly 1 in. broad; valves glabrous, coriaceous, dark- 

 brown, very obscurely veined; seeds 6-1 0. 



Mozamb. Distr. Eovuma Bay, Dr. Kirk! 



Acacia, &p. n.f Dr. Meller collected in the Manganya hills, Zambesi land, spe- 

 cimens of a " fine tree,'' with tenacious but not hard wood, which may prove a new 

 Acacia. As we have no fruit, and it does not present marked characters, I do not 

 name it. Extremities bluish-black, glabrous, glaucescent, with or without short re- 

 curved infrastipular spines. Leaves 4-6 in. long, glabrous, with a sessile gland towards 

 the base of the rachis ; pinnae in 5-7 pairs, leaflets 7-10-jugate, oblanceolate-oblong, 4-5 

 lines long. Spikes 2 or 3 from the axils. Flowers subsessile, glabrous. Calyx acutely 

 toothed ; petals but slightly longer. 



Acacia, sp. Tree of 20-25 ft.; extremities and petioles obscurely pubescent. 

 Infrastipular spines short, recurved. Pinnae 7-9-jugate, leaflets 11-14-jugate, oblong 

 subfalcate, J in. long. Spikes axillary. Flowers .... Legume (immature) flat, 

 straight, margins parallel or sinuous from abortion, abruptly apiculate, 5-6 in. long, 

 1 in. broad. 



Lower Guinea. Pungo Andongo, Angola, Dr. Welwitsch ! 



Evidently belongs to the difficult set including A. Catechu, Caffra, and hecata- 

 phylla, the relations of which I feel uncertain about. 



DOUBTFUL SPECIES WITH CAPITATE FLOWERS. 



A. Adansonii, Guill. et Perr. Fl. Seneg. i. 249. A much branched tree of 30-40 ft.; 

 extremities shortly and densely pubescent. Stipular spines straight, divaricate Lcaf- 

 rachis with a gland between the upper and lower pairs of pinnae; pinnae 4-6-jugate ; 

 leaflets 12-1 6-jugate, .very small, linear-oblong. Flowers capitate, yellow; peduncles 

 axillary, short, geminate or ternate. Petals united nearly throughout, twice as long as 

 the infundibuliform pilose calyx. Legume linear-oblong, slightly incurved, compressed, 

 margin continuous or undulate (not moniliform), valves thick, brown, minutely pubes- 

 cent, 5-6 in. long, |-| in. broad, 8-12seeded. 



Upper Guinea. Senegambia, Guillemin and Perrottet. 



I have not seen an authentic specimen of this plant, and as I have not identified it in 

 any specimens at Kew, I copy the description. Mr. Bentham, in Hook. Journ. 

 Bot. 1842, 497, under the same name describes a plant which is probably different, 

 having 10-20-jugate pinnae, and 20-30-jngate leaflets. Both Mr. Bentham and 

 Messrs. G. and P. reduce Mimosa adstringens, S. and T. Guin. PI. 327, to this species. 



The astringent fruits are collected for use in tanning. 



