252 105. LEGUMINOSAE 



fodder, vegetables, edible fruits, and a substitute for coftco ; several 

 species are used as ornamental plants. Cassia L. 



58. (52.) Ovules 2, rarely 3 or i, occasionally in some flowers 4. Ovary or 



its stalk usually free at the base of the receptacle, more rarely 



adnate to it. [Tribe CYNOMETREAE.] 59 



Ovules 4 or more, occasionally in some flowers only 3. Ovary or its stalk 

 usually adnate to the receptacle by the back. Leaves pinnate. [Tribe 

 AMHERSTIEAE.] 80 



59. Petals none 60 



Petals 1—5 64 



•60. Sepals 6, very small and unequal. Stamens 6. Ovary sessile. Shrubs. 

 Leaves pinnate. Bracteoles large. — Species i. Southern West Africa 



(Congo) Dewindtia De Wild. 



Sepals 4 — 5. Stamens 8 — 10 or 4. Trees. Leaves abruptly pinnate. 



Bracteoles small or wanting 61 



61. Sepals 5, distinctly imbricate in bud. Stamens 10. Ovary sessile. Stigma 

 acute. Bracteoles present. — Species 2. West Africa (Cameroons). 

 They yield timber. (Under Copaiba Mill, or Hardwickia Roxb.) 



Oxystigma Harms 



Sepals 4 62 



-62. Stamens 4, inserted on the outside of a spathe-like disc cleft on one side. 



Sepals imbricate in bud. Ovary nearly sessile. Bracteoles present. — 



Species i. West Africa (Cameroons). . . . Stemonocoleus Harms 



Stamens 8 — 10 63 



63. Ovary sessile. Fruit sessile, drupe-like, indehiscent. Bracteoles present. 



— Species 3. Central Africa. They yield timber, fragrant resin, 

 arrow-poison, and medicaments. The fruits of one species are edible, 

 of another poisonous. " Dattock." .... Detarium Juss. 



Ovary stalked. Fruit stalked, oblique, with a leathery rind, dehiscing by 

 two valves. Bracteoles none. — Species 9. Central Africa. They 

 yield timber, a resin (copal) used for making ornaments lacs and 

 varnishes, dye stuffs, medicaments, and edible seeds. [Copaiba Mill.) 



Copaifera L. 



64. Petals I — 2. Bracteoles large. Trees. Leaves pinnate .... 65 

 Petals 5 67 



65. Stamens 3. Sepals 4, small, scale-like. Petals i, orbicular. — Species 10. 



Central Africa Cryptosepalum Benth. 



Stamens 10 66 



66. Sepals reduced to minute teeth or wanting. Leaves with a single pair of 



leaflets. — Species i. Equatorial West Africa. . Aphanocalyx Oliv. 

 Sepals 5, three of them very small, the other two larger and connate. 

 Petal I, spatulate. Filaments united at the base, excepting one. Leaves 

 with many pairs of leaflets. — Species 2. West Africa. 



Monopetalanthus Harms 



