Pulse Family 215 



branous, nearly or quite entire; leaflets 1-3 cm. long, broadly 

 obovate, obtuse or retuse, dentate or spinulose-denticulate ; ped- 

 uncles stout, much exceeding the leaves ; involucral bracts con- 

 nate at base, ovate-lanceolate, acuminate, scarious-margined , 

 heads hemispheric, 2-4 cm. broad; calyx-teeth short, entire and 

 unequal ; corolla 1-2 cm. long, ochroleucous or somewhat reddish 

 tinged; pod stipitate, 3-8-seeded; seed rounded, minutely granu- 

 late. 



Occasional on grassy hillsides in rather heavy soil. Elysian Park, David- 

 ton; Chats worth Park. 



14. T. stenophyllum Nutt. Diffuse annual with slender stems 

 and branches, often purplish, decumbent or ascending, 1-3 dm. 

 long ; leaflets linear, remotely serrate-toothed ; peduncles filiform, 

 much longer than the leaves; segments of the involucre oblong, 

 cuneate at the base; head small, hemispheric ; corolla purple or 

 white, inflated from a narrow base to a broad, almost truncate 

 apex; pod 2-seeded ; seeds obliquely heart-shaped, strongly 

 rugose. 



Frequent on grassy slopes. March. 



15. T. depauperatum Desv. Low, diffuse, glabrous, annual, 

 branching from the base, decumbent, flaccid, 6-15 cm. long, few- 

 leafed ; leaflets 1 cm. long, cuneate-oblong, obtuse or emarginate, 

 denticulate; head long-peduncled, few-flowered; involucre much 

 reduced, with truncate short lobes; corolla less inflated, not at 

 all truncate at apex; pod 1-2-seeded ; seeds somewhat angular, 

 tuberculate-rugose. 



Same range as the last and much resembling depauperate forms of it, but 

 easily distinguished by floral characters. 



8. LOTUS L. 



Annual or perennial herbs or rarely suffrutescent 

 plants, with pinnately 3-many foliate leaves, and minute 

 gland-like or rarely foliaceous or scarious stipules. 

 Flowers solitary or umbellate, naked or subtended by 

 1— 5-foliate bracts, sessile or on axillary peduncles. 

 Calyx about equally 5-toothed or 5-cleft. Petals free 

 from the stamens, nearly equal ; standard ovate or 

 rounded, the claw often remote from the others ; wings 



