332 xlvii. § mimose^e (oliver). [Prosopis. 



deltoid lobes. Petals oval, acute, glabrous. Stamens exserted ; an- 

 thers broadly obovate-rotundate with a sessile non-exserted triangular 

 gland between the slightly divergent apices of the cells. Ovary and 

 style laxly patent-pilose. Legume 4-6 in. long, 1 in. in diameter, 

 subcylindrical or but slightly compressed, straight, obtuse, smooth 

 with a thick woody pericarp thinly septate between the transverse 

 seeds. Seeds oblong or ellipsoidal, shining, with a faint areole on each 

 side ; embryo between thick lateral layers of albumen. — P. lanceolata, 

 Benth. I.e. ; Anonychium lanceolatum, Schweinf. Reliq. Kotsch. 7, t. vii. ; 

 Coulteria? africana, Guill. et Perr. FL Seneg. i. 256 (ex descr.). 



Upper Guinea. Senegambia, Heudelot ! {form with elliptic-oblong rather obtuse 

 leaflets) ; Niger, Barter ! 



Nile Land. Kordofan, Kotschy ! 



Prosopisf dubia, Guill. et Perr. Fl. Seneg. i. 242, is referred in "Niger Flora" to 

 Acacia. I do not know it. It is described as a tree of 40 ft., with virgate glabrous 

 branches, geminate straight stout stipular spines ; pinnse 15-20-jugate, leaflets multi- 

 jugate linear obtuse, 1{ lines long. Legume linear compressed coriaceous 10-12-seeded. 



2. P. ? Kirkii, Oliv. A large tree ; extremities unarmed, glabrous 

 or obsolete-puberulous, slightly furrowed when dry, with pale ashen 

 bark. Pinnae 6-7-jugate, with a sessile gland between the pinnse, 

 rachis puberulous above. Leaflets 10-17-jugate, subsessile, oblong, 

 obtuse, minutely pubescent, J-J in. long, 1 line, more or less, broad. 

 Flowers in solitary axillary spikes 4-6 in. long (apparently insect- 

 punctured in our specimens). Legume 5-8 in. long, 1 in. broad, flat, 

 coriaceous, circinate, with a short hooked apiculus. Seeds compressed, 

 ovate, with a shining testa and faint areole on each side, separated by 

 narrow interposed cellular partitions of the endocarp. Albumen 0. 



Mozamb. Distr. Shire river, Zambesi land, Dr. Kirk I 



8. DICHROSTACHYS, DC. ; Benth. et Hook. f. Gen. Plant, i. 592. 



Flowers sessile, 5-merous, in dense cylindrical spikes, the upper 

 hermaphrodite, the lower neuter with long much exserted filiform sta- 

 minodes. Calyx shortly toothed. Petals valvate, more or less con- 

 nate. Stamens 10, hypogynous, free, exserted ; anther oblong or 

 elliptical with a globose caducous often slenderly stipitate apical gland ; 

 " pollen-grains oo ." Ovary subsessile, multiovulate ; style slender, 

 stigma terminal, minute. Legume linear, compressed, coriaceous, 

 twisted, indehiscent or irregularly opening ; valves continuous, usually 

 depressed between the seeds. Seeds compressed, shining; embryo 

 between thin lateral layers of pellucid albumen. — Shrubs or small trees, 

 usually spinescent. Leaves bipinnate, leaflets numerous, usually small, 

 sessile. Spikes axillary, pedunculate, usually geminate or solitary; 

 hermaphrodite flowers yellow ; neuter pink, white or purplish. 



A small genus of the Tropics and Australia. The following species are endemic, 

 though D. nutans is widely dispersed between the Tropics in Africa. 



Legume \-^ in. broad. Pinnae usually 5-10-jugate \. D. nutans. 



Legume |-1 ^ in. broad. Pinnae 10-1 8-jugate 2. D. platycarpa. 



