DICOTYLEDONS. 117 



and more rounded than the otliers ; pod inflated and purple 

 at maturity, seeds many, becoming loose in the pod. 



1. C. SAGiTTALis L. Kattle-box. Aiuiual ; stem widely 

 branching, 8-6 in. liigh, clothed with brownish hairs ; leaves nearly 

 sessile, oval or oblong-lanceolate, hairy ; stipules often wanting below ; 

 racemes short, 2-3 flowered ; corolla about the length of the calyx ; 

 pod oblong, glabrous, much inflated. May-July. Barren, sandy 

 soil. 



2. C. PuRsnii DC. Narkow-leavkd Kattlk-box. Peren- 

 nial; root slender-fusiform ; stems erect, slender, with scattered 

 hairs, 12-18 in. high ; lower leaves oval or oblong, the upper linear, 

 thick and fleshy ; racemes 6-12 in. long, 5-10-flowered, flowers dis- 

 tant ; corolla much longer than the calyx ; pod inflated, dark purple. 

 May-June. Grassy pine barrens. 



III. LUPINUS. 



Biennial or perennial herbs ; leaves simple or i)almately com- 

 pound ; flowers showy, in terminal racemes ; calyx 2-lii)})ed, 

 5-toothed ; standard orbicular, with the sides reflexed, keel 

 falcate ; stamens monadelphous, anthers alternately oblong 

 and roundish ; ovary sessile ; matured pod oblong, several- 

 seeded, often compressed between the seeds. 



1. L. viLLOsus Willd. Woolly Lupine. Biennial; stem erect, 

 branching at the base, 12-18 in. high; leaves simple, long-petioled, 

 narrowly oblong or elliptical, acute at each end ; stipules linear, 

 sometimes 2 in. long, adnate to the petiole below; flowers red and 

 ]>urple, in dense tern)inal sp)ikes or racemes 0-10 in. long; legume 

 o])long ; whole plant densely silvery-tomentose. April-May. Dry, 

 sandy barrens. 



2. L. TEiJENNLs L. Perennial ; stem erect, pu))escent, 12-18 iji. 

 high ; leaves palmately 7~U foliate ; leaflets obovate or oblanceolate, 

 ohtuse and nmcronate at the apex, slightly pubescent; petiole 

 slender; stij)ul(\s small; racemes terminal, slender, loosely many- 

 tlowered ; flowers pur[)le, blue, pink or white ; legume oblong, 

 densely pubescent, few-seeded. April-May. Dry, sandy soil. 



IV. MEDICAGO. 



Annual or perennial herbs; leaves petioled, trifoliate; 

 leaflets tootlied ; flowers in terminal and axillary S})ikes or 

 racemes; calyx r>-t()()tlied, the teeth short and slender; stand- 



