Laihyrus. LEGUMINOS.E. J 59 



10 pairs, thin, oblong, obtuse or acutish, distinctly petiolulate : otherwise very simi- 

 lai to the lust. — Torr. & Gray, FL i. 274. 



In open woods near the coast, Humboldt Co. (Bolandcr), and northward to the Columbia; 

 rarely collected. 



3. L. sulphureus, Brewer. Bather stout, a foot or two high or more : stipules 

 semisagittate, acuminate, 6 to 12 lines long, the lower lobe obtuse or acute, some- 

 times toothed ; leaflets 3 to 5 pairs, oblong-ovate to linear-lanceolate, acute, 9 to 

 18 lines long: peduncles nearly equalling the leaves, tew - many-flowered : flowers 

 smaller, about 6 lines long, sulphur-yellow : calyx-teeth glabrous, the upper much 

 shorter than the lower. — Gray, Proc. Am. Acad. vii. 399. L. ochrnlmcas (.'), Torr. 

 in Pacif. E. Pep. iv. 77. 



In the Sierra Nevada to an altitude of 7,000 feet, from the Yosemite to Plumas Co. 



4- +- Stipules narrower and semisagittate ; the lobes most frequently lanceolate, 



acuminate. 

 ++ Leaflets 4 to 6 pairs : peduncles rather many-flowered. 



4. L. venosus, Muhl. Stout, 2 or 3 feet high or more, climbing, usually some- 

 what finely pubescent : stems not winged : stipules mostly narrow and short, 4 to 9 

 lines long ; leaflets oblong-ovate, mostly obtuse, often pubescent beneath, 1 ), to -l 

 inches long: flowers purple, 6 to S lines long: calyx densely pubescent or nearly 

 glabrous, the rather short teeth at least eiliate : pod glabrous, about 2 inches long. 



— L. decaphyllus, Hook. Bot. Mag. t. 3123. 



Var. Californicus, Watson, 1. c. Very stout ; stems often strongly winged : stip- 

 ules broader; leaflets acute and narrower: flowers larger. — L. venosus, Benth. PL 

 llartw. 307. 



The L. venosus of the Eastern States ranges northwestward to the Saskatchawan and thence 

 across the continent to Washington Territory, perhaps extending down the coast into Northern 

 California, varying mil ideralily in the amount of pubescence, but not greatly otherwise. The 

 variety is found from Sonoma County to -Monterey, in valleys and on stream-banks, and in the 

 foot-hills of the Sierra Nevada. It may prove to be distinct, but specimens collected by 2?i ; 

 near Oakland appear intermediate. The mature fruit has not been compared. 



5. L. vestitus, Xutt. Slender, a foot high or more, often tall (6 to 10 feet 

 high), more or less soft-pubescent, rarely nearly glabrous : stems not winged : stipules 

 narrow, often small ; leallets ovate-oblong to linear, a hall' to an inch long, acute : 

 flowers pale rose-color or violet, usually large (7 to in lines long) ; lower calyx- 

 teeth about equalling the tube: ovary appressed pubescent. -Torr. & Gray, Fl. i. 

 276. /.. strictus, Nutt. 1. c. /.. venosus, var. grandiflorus, Torrey, Pacif. R. Rep. 

 iv. 77. /-. marilimus, Torrey, Bot. Mex. Bound, 19. 



The common species of the southern part of the State, from Sonoma County to San Diego, on 

 dry hills in the Coasl Ranges : very variable. 



++ ++ Leaflets 2 to I pairs: peduncles 2 — Q-flowered. 



C>. L. paluster, Linn. .Slender, a foot or two high or more, glabrous or some- 

 what pubescent: stem often winged: stipules mostly narrow, often small: leallets 

 narrowly oblong to linear, acute, an inch or two long: flowers purplish, half an inch 

 long: lower calyx-teeth about equalling the tube: pod. smooth, 2 inch i less. 



— /,. Lanszwertii, Kellogg, Proc. Calif. Acad. ii. 150, fig. II. 



Var. myrtifolius, Gray. Stipules usually broader and larger;] He! oi 



oblong, an inch long or less. — /,. myrtifolius, Muhl. /-. pubescens, Nutt. L.dcca- 



phyllus, var. minor, Hook. & Am. Bot, Beechey, 138. L. ir, - . Forr. & 

 Gray, Fl. i. 271. 



A very variable and widely diffused s| i. ., round throughout the northern portions of 1 • ■ 1 1 » 



Amoricn and the <>|,i World : ii is frequent in Washington Territory and ■ ud is found 



mon 1 in h outhwnrd on hillsides and in the mountains nearlj the whole ti ngtli ol the St ito. A 

 low fori curs with the tendrils often undeveloped. 



