338 xlvii. § mimoseje (oliver). [Acacia. 



A. Flowers spicate. 

 Stipules spinose. 



Pinnae 4-6 (2-8) pairs, with gland between each pair . . I. A, albida. 

 Pinnae 7-13 pairs, 1 gland near base of rachis . . . . 2. A. Lahai. 

 Stipules not spinose ; spines infra-stipular, scattered or 0. 

 Leaflets 1-jugate. 



Flowers shortly pedicellate. Pinnae 2-jugate . ... 3. A. mellifera. 



Flowers sessile. Pinnae 3-jugate 4. A. nigrescens. 



Leaflets 2-10-jugate. 



Pinnae 2-3-jugate. Leaflets 3-5-jugate, oblanceolate- 



oblong 5. A Iceta. 



Pinnae 3-5-jugate. Leaflets 5-10-jugate, oblanceolate- 



oblong 6. A. venosa. 



Pinnae 3-4-jugate. Leaflets 4-6-jugate, elliptical . . 7. A. Welwitschii. 

 Leaflets 10-50-jugate. 



Leaflets usually 10-20-jugate. 



Petals free nearly or quite from the base. 



Spikes exceeding the leaves. Legume f-1 in. broad. 



Pinnae 3-5 jugate 8. A. Verek. 



Spikes usually shorter than leaves. Legume 4~1 in. 



broad. Pinnae 3-6 jugate. Flowers glabrate . 9. A. glaucophylla. 

 Pinnae 8-jugate. Flowers purple. Calyx pubescent 10. A. purpurea. 

 Petals united | their length. Flowers closely 



pubescent 11. A. erubescens. 



Leaflets usually 20-50-jugate. 



Glands of leaf-rachis raised or stipitate (Prickles short, 



scattered) 12.-4. ataxaeantha. 



Glands sessile or 0. 



Petals 3-5 times longer than calyx 13. A. macrostachya. 



Petals scarcely more than twice as long as calyx, 

 or but slightly exceeding it. 

 Pinnae 10-40-jugate, leaflets -55- sV "*■ broad. 

 Petals twice as long as calyx. Legume 4~f in. 



broad 14. A. Catechu. 



Leaflets about 1 line broad. Petals slightly ex- 

 ceeding calyx. Legume 1 in. broad, obtuse, 

 irregularly, not transversely, reticulate . . .15. A. hecataphylla. 

 Pinnae 6-14-jugate, leaflets ^ in. broad. Petals 

 slightly exceeding calyx. Legume £-§ in. 

 broad, obscurely transversely reticulate . . .16.-4. Caffra. 

 P. Flowers capitate. 



Stipules scarcely or not at all spinescent. 



Peduncles naked 17. A. pennata. 



Peduncles involucellate near the middle 18. A. amy ihethophylla 



Stipules spinescent. 



Involucel obsolete. (Hoary-tomentose ; petals silky) . . 19. A. lasiopetala. 

 Involucel at apex of peduncle. 



Pinnae 4-8 jugate. (Legume turgid or cylindrical ; seeds 



crowded) 20.*.4. Farnesiana. 



Pinnae 10-30-jugate 21. A. Sieberiana. 



Involucel usually at base of peduncle. (Compare A. 

 tristis, p. 349.) 

 PinDae 6-30-jugate ; leaflets 20-40-jugate. Legume 



thinly coriaceous 22. A. abyssinica. 



Pinnae 3 r 4-jugate ; leaflets 8-12-jugate. Legume thinly 



coriaceous 23. A. reficiens. 



Pinnae 2 -7-jugate; leaflets 8-15-jugate. Legume thick, 



woody 24.-4. hebeclada. 



