154 LEGUMINOSiE. Vicia. 



Tril)e IV. Trifolice. Slaracns diadelphous. Legume not jointed, Jchisccnt and several-seeded, or I - 2-sceJed and 



indchisccnt. — Mostly low herbs. Leaves trifoliolate, without stipcllcs : leaflets often toothed or serrulate. 

 Tribe V. Astragale.e. Stamens diadelphous. Legume turgid or inflated, often spiuiously 3-ceIlcd longitudinally 



by thcintroflexionof one of the sutures. — Herbs, mostly with unequally pinnate leaves which are destitute 



of stipelles. 

 Tril>e VI. Hkdvsire.e. Stamens monadelphous or diadelphjus. Legume (lomcnt) transversely divided into several 



indehiscent one-seeded joints, or sometimes reduced to a single one-sccdcd cell. — Leaves (in all the United 



States genera) pinnately trifoliolate. 

 Tribe VII. GENisTEiE. Stamens monadelphous: anthers of two forms. Lcgumesnol jointed, but sometimes intercepted 



internally.-:— Leaves simple or palmately compound, not slipellatc. 

 Tribe VIII. SoPHOREjE. Stamens distinct : anthers uniform. Legume continuous, or frequently moniUform, but not 



jointed. 



»• Corolla irregular, or sometimes ncarli^ regular, never truly papilionaceous. 



Tribe IX. CiSsiE.!:. Stamens distinct, sometimes fewer than 10: anthers mostly of two forms. Legume not jointed, 

 or spuriously many-celled by transverse partitions between the joints. — Ijcavcs pinnate or bipinnate. 



Tribe I. VICIE.i:. DC. 



Corolla papilionaceous. Stamens diadelphous (9 <^ 1). Legume continuous {not articulated^ 

 2-valved, dehiscent. Radicle bent back on the edge of the cotyledons. Cotyledons thick 

 and farinaceous, remaining under ground unchanged in form during germination. — 

 Herbs with abruptly pinnate leaves ; the common petiole not articulated to the stem, 

 extended beyond the apex into a bristle or tendril. 



CO^■SPECTUS OF THE GE>"ERA. 



1. Vicia. Style with a tuft of hair at the summit, particularly on the outside (next the keel). 



2. Ervu.m. Style pubescent on the sides, or all around, below the stigma. 



3. Lathyrcs. Style pubescent on the inner surface (next the free stamen). 



1. VICIA. Tourn. ; Endl. gen. 6oSl. vetch. 



[ " Name originally derived from the Celtic word gmg " (De Theis) ; widen in German ; vida, Latin ; vesce, French.} 



Calyx tubular-campanulate, 5-cleft or 5-toothed ; the 2 upper teeth shortest. Style filiform, 

 bent at a right angle with the ovary, villous at the apex, particularly on the outside (next 

 the keel). Legume oblong, several-seeded. — Mostly climbing herbs. Leaflets in several 

 pairs. Petioles produced into branching tendrils. Peduncles axillary. 



• Peduncles elongated. 



1. ViciA Americana, Muhl American Vetch, 



Smooth; leaflets numerous (10- 14), elliptical-lanceolate or ovate-oblong, obtuse or retuse, 



mucronate ; stipules (small) semisagittate, deeply toothed ; peduncles shorter than the leaves, 



4 - 8-flo\vered ; lower teeth of the calyx broadly lanceolate ; style very villous at the apex ; 



legumes linear-oblong, compressed, reticulated, smooth. — Muhl. in Willd. sp. 3. p. 1096 ; 



•H 



