Lathyrus. LEGUMINOS^E. 159 



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

 lar to the last. Torr. & Gray, Fl. i. 274. 



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

 rarely collected. 



3. L. sulphureus, Brewer. Eather 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, few - 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. ochroleucus (1), Torr. 

 in Pacif. E. Eep. iv. 77. 



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



+- -t- 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 2 

 inches long : flowers purple, 6 to 8 lines long : calyx densely pubescent or nearly 

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

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



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

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

 Hartw. 307. 



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

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

 California, varying considerably 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 N evada. It may prove to be distinct, but specimens collected by Bolander 

 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 ; leaflets ovate-oblong to linear, a half to an inch long, acute : 

 flowers pale rose-color or violet, usually large (7 to 10 lines long) : lower calyx- 

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

 276. L. strictus, Nutt. 1. c. L. venosus, var. grandiflorus, Torrey, Pacif. E. Eep. 

 iv. 77. L. maritimus, Torrey, Bot. Mex. Bound. 49. 



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

 dry hills in the Coast Ranges : very variable. 



n- ++ Leaflet* 2 to 4 pairs : peduncles 2 ^-flowered. 



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

 what pubescent : stem often winged : stipules mostly narrow, often small ; leaflets 

 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 inches long or less. 



- L. Lanszwertil, Kellogg, Proc. Calif. Acad. ii. 150, fig. 44. 



Var. myrtifolius, Gray. Stipules usually broader and larger ; leaflets ovate to 

 oblong, an inch long or less. L. myrtifolius, Muhl. L. pubescens, Xutt. L. deca- 

 phyllus, var. minor, Hook. & Am. Bot. Beechey, 138. L. venosus, var. 8., Torr. & 

 Gray, Fl. i. 274. 



A very variable and widely diffused species, found throughout the northern portions of both 

 America and the Old World : it is frequent in Washington Territory and Oregon, and is found 

 more rarely southward on hillsides and in the mountains nearly the whole length of the State. A 

 low form occurs with the tendrils often undeveloped. 



