34 leguminosj:, 



peduncles slender, little exceeding the leaves : heads 8 — 15-flowered ; 

 involucre of about 5 small ovate or oblong bracts : corolla in age oval or 

 oblong, slightly inflated and about equally so from end to end, conspicu- 

 ously striate : pod 2-seeded : seed transversely oblong, beautifully sinuous- 

 rugose. — Eather common in low moist lands along the seaboard, where it 

 prefers the vicinity of the salt marshes ; but also around ponds among 

 the hills, and even on low subsaline plains of the lower Sacramento. A 

 most distinct species every way, and one which, having its lowest leaves 

 narrowest and its uppermost and later ones broadest, strangely reverses 

 that order of leaf-widening which is otherwise universal, I believe, in 

 Californian Clovers. Apr. — June. 



41. T. steuophyllnm, Nutt. 1. c. 151 ; T. ampleciens, Greene, Pitt. i. 6, 

 not of T. & G. Near the last, the branches more slender, but wiry and 

 upright : linear leaflets of about equal width on the lower and upper- 

 most parts of the plant, all remotely serrate-toothed : peduncles much 

 longer than the leaves, filiform : segments of the involucre oblong, connate 

 at base : head small, hemispherical, the ( deep purple or white) corollas 

 in age almost obpyramidal, being gradually inflated from a narrow base 

 to a broad, almost truncate apex : pod 2-seeded : seeds obliquely heart- 

 shaped, strongly rugose. — One of the most common species of western 

 California ; perfectly distinct from the last by its different texture, 

 extremely bladdery corollas and peculiar seeds. It inhabits dry plains 

 and hill-sides, and in dry seasons is very depauperate, though always 

 retaining all its characters. This is what Californian botanists and ama- 

 teurs have always hitherto been taught to receive as the T. ampleciens of 

 Torrey & Gray. Hence the true lunplectens, when first brought to the 

 author, was published by him as a new species. Apr. May. 



42. T. depauperatum, Desv. Journ. Bot. iv. 69, t. 32 (1814). Only a 

 few inches high, branched from the base, flaccid, decumbent, glabrous, 

 few-leaved : leaflets Jg in. long, cuneate-oblong, obtuse or emarginate, 

 denticulate : head long-stalked, few-flowered : involucre greatly reduced, 

 with truncate short lobes : corolla larger than in the last, less inflated : 

 pod 1 — 2-seeded : seed little broader than long, rather angular, tubercu- 

 late-rugose. — Less common than the last, and a small, rather obscure 

 species, seldom collected. It appears to be one of the few plants common 

 to the western coasts of both North and South America. Mar. Apr. 



43. T. laciniatum, Greene, Pittonia, i. 7 (1887). Slender, flaccid, 

 glabrous, ascending, 3—6 in. high : stipules ovate, acuminate, mostly 

 entire : lower leaflets narrowly cuneiform, denticulate, the upper broad, 

 truncate and 3-dentate at apex, the sides laciniately toothed or pinnatifid : 

 involucre reduced and obscure : fl. 3 5, white with purple centre, much 

 inflated in age : pod 3 — 4-seeded : seed oval, with the strong corruga- 

 tion running intcj a more or less distinctly favose coarse reticulation. — 



