194 



FABACEAE. 



slightly exceeding the calyx, 1-6-seeded, dehiscent or 

 indehiscent. 



1. T. gracilentum T. & G. Erect, slender, 2-5 dm. high, gla- 

 brous or peduncles and calyx sparsely villous; stipules lanceolate; 

 leaflets cuneate-obcordate, serrulate, 1 cm. long; heads 15-25- 

 flowered; calyx-teeth lanceolate-subulate, setaceously acuminate, 

 3 times the length of the tube; petals slightly exceeding the calyx- 

 teeth, purple or rose color; pods exserted, 2-seeded. 



Common throughout our range on the plains and grassy hills. 

 March-April. 



2. T. bifidum Gray. Erect, very slender, pale green or glaucous; 

 peduncles and calyx more or less villous; stipules ovate-lanceolate, 

 entire; leaflets lincar-cuneate, the sides remotely toothed, apex 

 bifid and mucronulate; heads 6-15-flowered; calyx-teeth subulate- 

 setaceous, about equaling the minute pale rose-colored corolla; 

 pod included, 1-seeded. 



Morgans Station, Davidson. 



3. T. ciliolatum Benth. Erect, 2-6 dm. high, glabrous; stipules 

 narrow, acuminate; leaflets cuneate-oblong or obovate, 1-2 cm, 

 long, obtuse or retuse, serrulate; calyx-teeth lanceolate, very acute, 

 rigidly ciliolate; corolla slightly exceeding the calyx, purple. {T. 

 ciliatum Nutt.) 



Common on grassy hillsides and in the valleys. 



