LEGCMINOS.E. (PULSE FAMILY.) 127 



H- Calyx-teeth silky-plumose, longer than the whitish corolla : root annual. 



1. T. ARVENSE, L. (RABBIT-FOOT or STONE CLOVER.) Silky, branch- 

 ing (5' -10' high); leaflets oblanceolate ; heads becoming very soft-silky and 

 grayish, oblong or cylindrical. Old fields, &c. (Nat. from Eu.) 



-- - Calyx scarcely hairy except a bearded ring in the throat, shorter than the rose- 

 purple elongated-tubular corolla. (Short-lived perennials : flowers sweet-scented.) 



2. T. PRATENSE, L. (RED C.) Stems ascending, somewhat hairy ; leaflets 

 oval or obovate, often notched at the end and marked on the upper side with a 

 pale spot; stipules broad, bristle-pointed; heads ovate, sessile. Fields and mead- 

 ows ; largely cultivated. (Adv. from Eu.) 



3. T. MEDIUM, L. (ZIGZAG C.) Stems zigzag, smoothish ; lea/lets oblong, 

 entire, and spotless ; heads mostly stalked; flowers deeper purple, otherwise too 

 like the last. Dry hills, E. Massachusetts. (Adv. from Eu.) 



# # Flowers pedicelled in umbel-like round heads on a naked peduncle, their short pedi- 



cels reflexed when old : corolla white or rose-color, withering-persistent and turn- 

 ing brownish in fading ; the tubular portion short. 



4. T. refl6xum, L. (BUFFALO C.) Annual or biennial ; stems ascending, 

 downy ; leaflets obovate-oblong, finely toothed ; stipules thin, ovate ; calyx-teeth 

 hairy; pods 3-5-seeded. Western New York (rare) to Illinois and south- 

 ward. Heads and flowers larger than in No. 2 : standard rose-red ; wings and 

 keel whitish. 



5. T. Stolonifemm, Muhl. (RUNNING BUFFALO-C.) Smooth, peren- 

 nial; stems with long runners from the base; leaflets broadly obovate or obcordate, 

 minutely toothed ; heads loose ; pods 2-seeded. Open woodlands and prairies, 

 Ohio to Illinois, Kentucky, and westward. Flowers white, tinged with purple. 

 Probably a variety of the last 



6. T. ripens, L. (WHITE C.) Smooth, perennial; the slender stems 

 spreading and creeping ; leaflets inversely heart-shaped or merely notched, obscurely 

 toothed ; stipules scale-like, narrow ; petioles and especially the peduncles very 

 long ; heads small and loose ; calyx much shorter than the white corolla ; pods 

 about 4-seeded. Fields and copses, everywhere. Here probably introduced, 

 but indigenous northward. 



7. T. Carolini&num, Michx. (CAROLINA C.) Somewhat pubescent 

 small perennial, procumbent, in tufts ; leaflets wedge-obovate and slightly notched ;. 

 stipules ovate, foliaceous ; heads small on slender peduncles ; calyx-teeth lance- 

 olate nearly equalling the purplish corolla ; standard pointed ; pods 4-seeded. 

 Nat. from Southern States in waste grounds below Philadelphia ( C. E. Smith) ; 

 probably wild in S. Virginia. May. 



* * * Flowers short-pedicelled in close heads, reflexed when old : corolla yellow, per- 



sistent, turning dry and chestnut-brown with age, the standard becoming hood- 

 shaped: annuals, fl. in summer. 



7. T. AGR\RIUM, L. (YELLOW or Hop-C.) Smoothish, somewhat up- 

 right (6'- 12' high) ; leaflets obovate-oblong, all three from the same point (palmate) 

 and nearly sessile ; stipules narrow, cohering with the petiole for more than half its 

 length. Sandy fields, Massachusetts to Virginia. (Nat. from Eu.) 



