FLORA OF TROPICAL AFRICA. 



Order XLVII. LEGUMINOS^l. 



Flowers irregular or regular, usually hermaphrodite. Calyx 

 gamosepalous 5-toothed or -lobed or 2 or more teeth connate, rarely 

 polysepalous. Corolla of 5 rarely fewer petals, usually irregular and 

 imbricate in Suborders 1 and 2, regular and valvate in 3. Stamens 

 10 rarely fewer or indefinite, perigynous or subhypogynous. Pistil 1- 

 carpellary, ovarv free with 1 or more ovules on the ventral suture ; 

 style simple. iVuit a legume dehiscing by both sutures, more rarely 

 follicular or indehiscent. Seed exalbuminous or albuminous especially 

 in genera of Suborder 2. — Herbs, shrubs, or trees. Leaves alternate 

 with few exceptions, usually stipulate, compound l-oo -foliolate, or 

 rarely simple. Inflorescence various. 



The second largest Natural Order of flowering plants, generally distributed over the 

 globe. 



Suborder I. Papilionaceje. (By Mr. J. G. Baker.) 



Flowers irregular, rarely subregular ; hermaphrodite. Calyx gamo- 

 sepalous 5-toothed or -lobed, or 2 upper lobes more or less connate, or 

 bilabiate 2 upper lobes opposed to the 3 lower ; rarely closed in bud 

 and spathaceous. Corolla papilionaceous, or rarely nearly regular ; 

 petals 5 free or adnate below to the staminal tube ; posterior (standard) 

 outside in bud, 2 lateral (wings) intermediate. 2 lower inside and usually 

 coherent by their lower margins (keel). Stamens perigynous or sub- 

 hypogynous, 10, diadelphous monadelphous or free (in § Smartziece oc). 

 Ovary of the order. Embryo usually with an inflexed radicle, the 

 cotyledons accumbent. — Herbs, shrubs, or trees, sometimes scandent. 

 Leaves alternate, digitate or pinnate, more rarely 1-foliolate or simple. 

 Inflorescence various. 



Ninety-one genera of this suborder are tropical African ; of these but 9 are peculiar 

 to this Flora. 



Tribe 1. Genisteae. — Stamens 10, monadelphous, the anthers usually of two hinds. 

 Pod two-valved, not articulated. Erect herbs or shrubs, with simple or digitately 

 trifoliolate leaves. Leaflets entire. 

 Tube of stamens slit along the top. 



Calyx with the four upper teeth more or less connate 1. Lotomonis. 



