356 XLVII. § MIMOSE.E (oliver). [Albizzia. 



Staminal sheath much exserted (central flower^ of head often 

 diverse with short staminal sheath — § Zygia). 

 Leaflets 8-15-jugate ; pinnae 4-7. 



Calyx ahout ^ line long 16. A. brachycalyx. 



Calyx l|-2 lines long 17. A. fastigiata. 



Leaflets 3-8-jugate ; pinnae 2-5. 



Leaflets ^-{ in. or upper 1 in. long, obovate-rhomboid . . 18. A. Petersiana. 

 Leaflets 3-4-jugate, 1-3 in. long; pinnae 2-3 . . . . 19. A. Brownei. 

 Leaflets 4-8-jugate, f-2 in. long; pinnae 3-5 . . . . 20. A. Welwitschii. 



1. A. Julibrissin, Boivin ; Benth. in Hook. Journ. Bot. 1844, 91. 

 Tree of medium size ; extremities glabrous or puberulous. Leaf-rachis 

 J-l ft. long, frequently with small interjugal glands above, as well as 

 one near the base ; pinna? 7-12-jugate ; leaflets multijugate (20-40- 

 jugate), linear-oblong, subfalcate, acute, obliquely apiculate or obtuse, 

 finely pubescent or glabrate, J-J in. long. Flowers sessile or pedicel- 

 late, in pedunculate heads fascicled in the upper axils or racemose, 

 silky-pubescent in the African form. Calyx infundibuliform, with 5 

 deltoid teeth. Petals connate two-thirds, nearly three times as long as 

 calyx. Filaments irregularly connate at the base, tube included. Le- 

 gume straight, 4-6 in. long, f in. more or less broad, margins continu- 

 ous or sinuous only from abortion of seeds. — var. mollis, Benth. 1. c. 

 Albizzia mollis, Boivin ex. Benth. ; Acacia Isenbergiana, Schimp. PI. 

 Abyss. No. 275 ; Fournier in Ann. Sc. Nat. ser. iv. 14, 373. Itiga, A. 

 Rich. Fl. Abyss, i. 236. 



Nile Land. Abyssinia, Lake Amba! Occurring on the mountains rarely, and in 

 isolated specimens, accovdiug to a. note on the specimen communicated by Capt. Pullen. 

 Dr. Schimper's specimen is from a planted tree, and on its label he queries if it be in- 

 troduced. 



Apparently widely spread in Central and Southern Asia. 



2. A. amara, Boivin ; Benth. in Hook. Journ. Bot. 1844, 90. Tree 

 with rather stout interrupted or nodose extremities, at first shortly 

 tomentose-pubescent. Leaves undeveloped at flowering, rachis pri- 

 mary and secondary closely pubescent, the former 3-5 in. long ; pinna? 

 10-20-jugate, leaflets closely 25-35-jugate, linear, subobtuse, sparsely 

 sericeous, 1 J lines long. Flowers capitate, sessile or subsessile, silky ; 

 peduncles J-l in. long, usually fascicled in the nodes of short lateral 

 branches. Calyx shortly and obtusely dentate. Petals united §, 2-3 

 times exceeding the calyx. Filaments irregularly confluent at base, 

 the tube included. Legume linear-oblong, nearly straight, puberulous 

 or glabrate, often sinuous from abortion of seeds, usually 5-8 in. long, 

 f— 1J in. broad. — Acacia sericocephala, Fenzl in Flora, 1844, 312; 

 Schweinf. Reliq. Kotschyanae, vi. t. 5, 6 ; Benth. in Hook. Journ. 1. c. 

 91. Albizzia affinis, Fourn. in Ann. Sc. Nat. ser. iv. 14, 371. 



Nile Land. Abyssinia, Schimper! Sennaar and Kordofan, Kotschy! 

 Also in India. 



A. affinis was specifically distinguished by M. Fournier on the ground of its longer 

 and broader legume, but our specimens do not support its separation. 



3. A. hypoleuca, Oliv. About 10 ft. in height j young shoots, 

 petioles, and peduncles pubescent. Leaves 4-5 in., rachis with a small 



