10^. LEGUMINOSAE 



253 



67. Fertile stamens 3. Ovules 3. Bracteoles large. Trees. — Species 20. 



Central Africa. Some species yield timber. {Vouapa Anbl.) 



Macrolobium Schreb. 

 Fertile stamen? 10, rarely [Cynometra) more 68 



68. Petals very imcqual. Leaves pinnate 6g 



Petal? equal or nearly equal 71 



69. Corolla of i large and 4 very small petals. Receptacle shortly cup-shaped. 



Bracteoles minute. Leaves with i — 2 pairs of leaflets. — Species i. 



Equatorial West Africa Eurypetalutn Harms 



Corolla of 3 large and 2 small petals 70 



70. Bracteoles petal-like. Receptacle cup- or top-shaped. — Species 4. 



West Africa. (T.lnder Cynometra L.) . . . Hymenostegia Harms 



Bracteohs sepal-like, hairy outside, equalling the bracts Receptacle 



frnnel-shaped. Sepals 4. Shrubs. Leaves with 3 — 4 pairs of leaflets.. 



— Species i. West Africa Loesenera Harms 



71. Sepals 5, very unequal, the lowest very large. Receptacle very short 



Trees. Leaves pinnate. — Species i. Madagascar. 



Cymbosepalum Bak. 

 Sepals 4 — 5, equal or nearly equal 72 



72. Receptacle (calyx-tube) long and narrow. Sepals 4. Stalk of the ovary 



obliquely adnate to the receptacle 73 



Receptacle short and usually broad 75 



73. Bracteoles large, petaloid, enclosing the bud. Receptacle with a thick 



disc on one side. Shrubs. Leaves pinnate, with 2 — 4 leaflets. — 



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



Bracteoles small, not enclosing the bud, or wanting. Leaves simple 



or pinnate with many leaflets 74 



74. Leaves simple. Shrubs. — Species 2. West Africa (Cameroons). 



Zenkerella Taub. 



Leaves abruptly pinnate. Trees. — Species i. West .\frica (Cameroons). 



The bark is used as a condiment. . . . Scorodophloeus Harms 



75. Ovule I. Stalk of the ovary obliquely adnate to the receptacle. Sepals 4.. 



Trees. Leaves simple. — Species i. East Africa. Podogynium Taub. 

 Ovules 2, rarely 3. Leaves abruptly pinnate 76 



76. Filaments united into a ring at the base, unequal, hairy. Sepals 5, Ovary 



glandular. Trees. Leaves with 3 — 6 pairs of leaflets. Flowers in 

 terminal, many-flowered racemes. — Species i. East Africa. 



Stuhlmannia Taub. 

 Filaments free. Bracteoles none 77 



77. Flowers in panicles. Sepals short. Petals white. Filaments hairy at 



the base. Fruit flat, lanceolate, opening b}' two valves. Trees. — 

 Species i. South Africa (Cape Colony). Yields timber. 



Umtiza Sim 

 Flowers in racemes or corymbs. Sepals usually long .... . 78: 



