LEGUMINOSJE-TAPILIONAGEJE. 229 



GENERA. 



I. VICIEjE. 



1. Vicia T. — Flowers irregular resupinate ; receptacle concave, 

 usually oblique, lined by a disk. Calyx gamosepalous ; lobes or 

 teetb. 5, nearly equal ; 2 highest shorter, or 1 lowest longer ; imbri- 

 cated or subvalvate in aestivation. Corolla papilionaceous ; standard 

 obovate or oblong, emarginate ; claw broad, short ; wings oblique 

 usually oblong, adhering at middle to keel ; keel shorter than wings, 

 falcate. Stamens 10, 2-adelphous (9-1) ; vexillary stamen free, or 

 more or less connate with remainder ; other 9 connate into a sheath 

 cleft above with oblique mouth ; anthers uniform, introrse 2-celled, 

 longitudinally rimose. Germen sessile or stipitate ; ovules 2 {Ervum) 

 or oftener op, incompletely campylotropous, usually descending ; 

 micropyle extrorse superior ; style inflexed, filiform or slightly 

 compressed above laterally or dorsally, apex dorsally bearded by a 

 bunch of bairs, or pilose or pubescent all round, or more rarely 

 beardless {Ervum) ; stigma terminal. Legume of variable form 

 compressed, continuous within ; pericarp membranous, or more rarely 

 thick subcarnose or coriaceous {Fab a), 2-valved. Seeds globose or 

 compressed ; funicle dilated at hilum into an oblong or linear aril ; 

 embryo fleshy ; cotyledons thick ; radicle inflexed accumbent. — Low 

 erect, or diffuse herbs, usually climbing by means of tendrils ; leaves 

 terminating in a small recurved bristle, or a simple or branched 

 tendril; leaflets oo or more rarely 1, 2-jugate, entire or dentate, 

 exstipellate ; stipules semisagittate ; flowers solitary or in twos or 

 threes at axils, or oftener in lateral (spurious?) racemes at axils of 

 leaves ; bracts usually small, very caducous ; bractlets ( Temperate 

 regions of Northern hemisphere and of South America). See p. 190. 



2. Lens T. ' — Receptacle shortly obconical, glandular within. 

 Calyx gamosepalous ; lobes 5, nearly equal, elongated valvate. 

 Corolla and stamens of Vicia. Germen stipitate or subsessile, 2- 



1 Sep p. 193. 



