138 LEGUMINOS^. (rULSE FAMILY.) 



* * Flowns all alike and perfect, in dose spikes or heads : corolla whitish or cream- 

 color with a pmple s/>ot on the standard, about the length of the downy calyx : 

 stems uprifjht, wand-like (2° -4° hi(jh). 



5. L. hirta, Kll- Piduncks longer than the leaves; petioles slender; leaflets 

 rouiulisli or oval, hairy; sjnkes cijlindriccd, rather loose ; pods nearly as long as 

 the calyx. (L. polystachia, Miehr.) — Dry hillsides. 



6. L. capit^ta, Michx. Pedunchsand pttioles sJiort; stems rij^id, woolly ; 

 leaflets elliptical or oblong, thickish, reticulated and mostly smooth above, silky 

 beneath ; spikes or heads short ; ])ods much shorter than the calyx. — Varies 

 greatly, most of all in var. angustifom.v : slcndtr; leaflets linear; peduncles 

 sometimes elongated. — Dry and sandy soil ; tne narrow variety only found 

 near the coast and southward. 



21. STYLOSANTHES, Swartz. Pencil-Flowek. 



Calyx early deciduous ; the tube slender and stalk-like ; the limb unecpially 

 4 - 5-cleft, the lower lobe more distinct. Corolla and monadelj)hous stamens 

 inserted at the summit of the calyx-tube : standard orbicular : keel incurved. 

 Anthers 10, the 5 longer ones fixed near their base, and the 5 alternate shorter 

 ones fixed by the niiiUlle. Stylo fililbrm, its upper part falling oft" after flower- 

 ing, the lower part incun-ed or hooked, and persistent on the apex of the 1 - 

 2-jointed small and short reticulated j^d, the lower joint when present empty 

 and stalk-like. — Low perennials, branched from the base, with wiry stems, 

 pinnately 3-foliolate leaves, the sheathing stipules united to the petiole, no 

 stipels, and small, yellow flowers in terminal heads or short spikes. (Name 

 composed of orilAoy, a column, and uvdos, a flower, from the stalk-like 

 calyx-tube.) 



1. S. elatior, Swartz. Tufted ; leaflets lanceolate, strongly straight- 

 veined ; heads or clusters small and tew-flowered. — IMne barrens, Long Island, 

 New York, to Virginia, Illinois, and southward. July -Oct. 



22. VICIA, Tourn. Vetch. Take. 



Calyx .5-cleft or .^-toothed, tl)C 2 ujjjier teeth often shorter, or the lowest 

 longer. Wings of tlie corolla adliering to tlie middle of the keel. Stamens 

 more or less diadelphous (9 & 1 ) ; the orifice of the tube oblique. Style Ali- 

 form, hairy all round or only on the back at the apex. Pod flat, 2-valved, 2- 

 sevcral-scedcd. Seeds globular. Cotyledons very thick, remaining under 

 ground in germination. — Herbs, mostly climbing more or less by the tendril 

 at the end of the pinnate leaves. Stipules half-sagittate. Flowers or iiedun- 

 cles axillary. (The classical Latin name.) 



* Annanl : flowers 1-2 in the axils, nearly sessile, large, inolet-purple. 



\. V. SATiVA, L. (Common Vetch or Tare.) Somewhat pubescent j 

 Btem sim])lc ; leaflets 5-7 pairs, varying from obovate-oblong to linear, notched 

 and mucronatc at the apex; pod linear, several -seeded. — Cultivated fields and 

 waste places; both the common form and the var. axgustif6lia, which has 

 longer and narrow leaflets. (Adv. from Eu.) 



