LEGUMINOS/E. 91 



the broadly obovate banner erect: wings meeting above the keel, not 

 enfolding it: pod pubescent, straight, 7 — 10 lines long, 5 — 7 seeded. — 

 Common throughout middle California, especially toward the seaboard. 



3. L. hnmistratus, Greene. Low and diffuse, the branches 5—8 in. 

 long, herbage soft-villous: Q. nearly sessile, yellow; calyx-teeth linear, 

 much longer than the tube: pod oblong. J^ in. long, pilose, 2 — 3-seeded. 

 — Clayey banks and hillsides; as widely dispersed as the preceding, but 

 less common. May, June. 



4. L. . denticnlatus, Greene. Erect, 1 — 2% ft. high, fastigiately 

 branching, pale green and glaucous, sparingly pilose; calyx-leeth longer 

 than the lube, and, with the margins of the upper leaves, somewhat den- 

 ticulate: corolla 2 lines long, pale yellow or salmon-color, changing to 

 red: pod pubescent, short, 3-seeded. — A weed in grain fields of the 

 Sacramento. April — June. 



■i—i— Flowers 1 or many, on an elongated, usually bracted peduncle; claw 

 of the banner commonly remote from the others, heel mostly obtuse. 



++ Annuals; few-flowered. 



5. L. micraathns, Benth. Erect, slender, 4—10 in. high, glabrous, 

 glaucous: peduncle filiform, bracted, 1-flowered: fl. minute, pale salmon, 

 turning red; pod 1 in. long or less, compressed, constricted between the 

 seeds, these oval or roundish, little compressed, smooth. — April, May. 



6. L. salsuginosus, Greene. Ascending or depressed, slightly Hrigose, 

 somewhat succulent, the branches 8 — 18 in. long: leaflets 4 — 6, obovale, 

 obtuse: peduncles 1 in. long, 1—4 flowered, naked or with a conspicuous 

 1 — 3-foliolate bract: corolla yellow, 3 lines long, the banner and wings 

 equalling the straight keel: pod scarcely compressed, 10 — 12-seeded: 

 seeds obliquely oval, smooth. — From San Jose southward, either toward 

 the sea, or on subsaline flats of the interior. March— June. 



7. L. rubellus (Nutt.), Greene. Prostrate, slender, not succulent, 

 strigose-pubescent or nearly glabrous: leaflets 6 — 10, linear-oblong, mostly 

 acutish: early peduncles shorter than the leaves, bractless, 1-flowered, 

 the later longer, bracted, 2-flowered: corolla reddish, scarcely twice as 

 long as the calyx: pod slender, straight, 7 — 10-seeded: seeds quadrate, 

 minutely granulate.— Plentiful in sandy soils, San Francisco, Alameda 

 and southward; apparently only along the seaboard. April— July. 



8. L. nudiflorus (Nutt.), Greene. Near the last, but leaflets smaller 

 and broader: &. thrice as large: pod broader, more flattened, slightly 

 curved upward at apex: seeds larger, quadrate, faintly tuberculate. — 

 Eastern base of Mt. Diablo Eange, near Byron, etc., on gravelly hill-tops; 

 thence southward. March— May. 



