388 LEGUMINOSAE 



Eefs.— Lathyrus littoralis Endl.; Walp. Rep. 1:722 (1842); Jepson, Fl. W. Mid. Cal. 

 29S (1901), ed. 2, 238 (1911), Man. 583, fig. 579 (1925). Astrophia lUtoralis Nutt. ; T. & G. Fl. 

 1:278 (1838), type loc. "sand hills near the estuary of the Oregon," Nuttall. Orobus littoralis 

 Gray, Pac. R. Rep. 4:77 (1857). 



2. L. torreyi Gray. Redwood Pea. Stems erect, very slender, 4 to 9 inches 

 hig:li; herbafre hg;ht g:reen, sparinpfly villous; leaflets thin, elliptic to ovate or ob- 

 long, 5 to 7 lines long; leaves with a terminal leaflet or the rachis merely ending 

 in a point; stipules small, semi-sagittate, lanceolate, the lower lobe very short; 

 flowers solitary or in 2s, the peduncles 4 to 12 lines long; calyx-teeth subulate, 

 exceeding the tube, or the upper shorter and broader; corolla 6 lines long; banner 

 pale lilac, keel and wings white; pods linear-oblong, pubescent, 1 inch long, 3 to 

 5-seeded. 



Shady woods, 50 to 1500 feet : Santa Clara Co. to Humboldt Co. North to 

 Washington. Maj^-June. 



Habit note. — Lathyrus torreyi often forms small but pure colonies of even growth about 

 6 inches high on wooded banks, as at Mt. Hermon in the Sajita Cruz Mts. It has a marked 

 appearance on account of its delicate habit, light green foliage and usually 1-flowered racemes. 

 A distinctive character resides in the foliage which possesses a lasting fragrance. The corolla is 

 sometimes violet-tinted. 



Locs. — Gilroy, Chas. Palache; Ross Valley, M. S. BaTcer ; Guerncville, Congdon; Calistoga 

 (sw. of), Jepson 13,626; Comptche, H. A. Walker 271; Cahto, Mendocino Co., Jepson 1862; Ft. 

 Bragg, Mathews; Bull Creek, Humboldt Co., Jepson 16,456; Redwood House to Yager, Hum- 

 boldt Co., M. S. BaTcer 57; Acorn n. Humboldt Co., Jepson 1937; Kneeland, Chesnut 4" Drew; 

 Trinity Summit, Manning 62%. 



Eefs. — Lathyrus torreyi Gray, Proc. Am. Acad. 7:337 (1868), type loc. stated as "Mendo- 

 cino or s. part of Humboldt Co.", actually Shelter Cove, Bolander 6506; Jepson, Fl, W. Mid. Cal. 

 297 (1901), ed. 2, 238 (1911), Man. 583 (1925). 



3. L. nevadensis Wats. Sierra Pea. Stems few from the slenderly branched 

 root-crown, mostly simple, disposed to be naked or few-leaved below, 5 to 18 

 inches high; herbage sparselj^ soft-puberulent to subglabrous; leaflets 3 to 6 pairs, 

 narrowly or broadly elliptic, acute or obtuse at both ends, apiculate or mucronu- 

 late, usually rather thin, sometimes small and thick, % to 1% inches long; stipules 

 3 to 8 lines long; tendrils commonly short and unb ranched; peduncles usually 

 shorter than the leaves, few (2 to 4, rarely 6) -flowered; calyx-tube 2^2. lines long, 

 its teeth triangular-acuminate, the lower somewhat the larger, about I/2 length of 

 tube; corolla rose-pink or crimson to reddish-purple, fading blue, sometimes yel- 

 lowish-white, 6 to 10 lines long; keel abruptly upward-turned or right-angled. 



Wooded or brushy slopes, 1500 to 7000 feet : Sierra Nevada from Fresno Co. to 

 Tehama Co.; North Coast Ranges from Napa Co. to Siskiyou Co. Apr.-May. 



Locs. — Sierra Nevada: Fresno Co., Mainwaring ; Eight-mile sta., near Wawona, Jepson 4290 ; 

 Yankee HUl, Tuolumne Co., A. L. Grant 652; Calaveras Big Trees, A. L. Grant; Forest Hill, 

 Placer Co., Bolander 4629 ; Battle Creek Mdw., Tehama Co., Jepson 12,266. North Coast Ranges: 

 Howell Mt., Tracy 1527 ; South Yager Creek Valley, Humboldt Co., Tracy 6062 ; Willow Creek 

 Canon, Humboldt Co., Tracy lAAi^; South Fork Mt., Trinity Co., Jepson 16,664; Cuddihy Valley, 

 w. Siskiyou Co., Jepson 2853 ; Goosenest foothUls, e. Siskiyou Co., Butler, 



Tax. note. — Lathyrus nuttallii Wats. Proc. Am. Acad. 21:450, — 1886, based entirely on 

 plants from Idaho and Oregon ("upper California", Nuttall) to British Columbia, is segre- 

 gated according to Bradshaw (Bot. Gaz. 80:242-243) from L. nevadensis Wats, by the following 

 characters: L. nuttallii, tendrils well developed; leaflets 6 to 14, usually 8; racemes 4 to 6- 

 flowered ; corollas 6 to 8 lines long ; calyx-teeth less than half as long as the tube. L. nevadensis, 

 tendrils mostly obsolete; leaflets 4 to 8, usually 6; racemes 2 to 3-flowered; corollas 10 lines long; 

 calyx-teeth over half as long as tube. Using these criteria in succession, a different grouping of 

 the California plants results each time. Individual plants often vary so as to agree in great part 

 with both descriptions. Plants agreeing in all respects with one or the other description are 

 much less numerous than those in some respects intermediate. In California the ranges of plants 

 varying toward either of these forms are not distinct but coincident. 



Eefs. — Lathyrus nevadensis Wats. Proc. Am. Acad. 11:133 (1876); Jepson, Man. 583 

 (1925). L. venosus var. ohovatus Torr. Pac. R. Rep. 4:77 (1857), based on plants from near 



