392 LEGUMINOSAE 



gro^\-n at Berkeley from seed brought from the mountains of Los Angeles Co. L. bolanderi subsp. 

 viohiccus Rradshaw, Bot. Gaz. 80:253 (1925). Var. qukkcktorum .Tepson. L. quercetorum Hel. 

 Muhl. 2:290 (1907), typo loc. Mt. Hamilton, Ilcllcr SG23. L. bolanderi subsp. quercetorum Brad- 

 shaw, Bot. Gaz. 80:253 (1925). Var. tracyi Jcpson. L. tracyi Bradshaw, Bot. Gaz. 80:245 

 (1925), type loc. Janes ranch, Grouse Mt., Humboldt Co., Tracy 4943. Var. bakbarae Jepson. 

 L. violacius var. harbarae White, Bull. Torr. Club 21:452 (1894), type loc. Santa Barbara, 

 Whcelocl'. L. siricliis var. barburae Jepson, Man. 584 (1925). 



9. L. pauciflorus. Fer. Brush Pea. Stems erect or climbiii<^, 1 to 2 feet high; 

 herbage perfectly glabrous; leaflets 6 to 12, elliptic to ovate-lanceolate, usually 

 firm, I/O to 11 •> (or 2) inches long; tendrils various; stipules '^^ to % the size of the 

 leaflets, semi-sagittate; peduncles longer or shorter than the rachis; racemes usually 

 3 to 8-flowered; calyx-teeth narrow, not ciliate, not exceeding tube; corolla purple, 

 9 to 10 lines long; pods glabrous, 11/4 to 21;) inches long, usually Si^ to 4 lines wide. 



Brushy or wooded slopes, 500 to 3000 feet: North Coast Ranges; Sacramento 

 Valley; northern Sierra Nevada. North to Washington, east to Wyoming. May. 



Tax. note. — Apparently rare in California, Lathyrus pauciflorus is sometimes difficult to 

 segregate from less typical specimens of L. bolanderi Wats. The plants of L. paucifloru", are 

 perfectly glabrous; the calyx-teeth are typically shorter and narrower and with wider sinuses 

 (especially between the lower tooth and the lateral teeth) than in L. bolanderi, and the raceme is 

 fewer-flowered. 



Locs. — Mt. Sanhedrin (Bot. Gaz. 80:249) ; Bull Creek, Humboldt Co., Jepson 16,455 (inter- 

 grade to L. bolanderi Wats.) ; Marysville Buttes, Heller 11,370a; Nevada City and Quincy (Bot. 

 Gaz. 80:249). 



Var. schaffneri Jepson comb. n. Leaflets obovate or elliptical, coriaceous and venulose, 5 to 

 9 (or 11) lines long, mostly smaller than in the species; racemes usually 2 to 5-flowered; flowers 



6 to 8 lines long. — Siskiyou and Modoc Cos. to Sierra Co. ; Kern Co. East to Colorado and New 

 Mexico, south to Mexico and Lower California. The leaflets of the lower leaves often tend to be 

 small and crowded. 



Locs. — Oro Fino, Siskiyou Co., Butler 1212 ; Forestdale, sw. Modoc Co., M. S. Baker; Big 

 Mdws., Plumas Co., B. M. Austin 39; Janesville, Lassen Co., T. Brandegee; Tehachapi Mts. (Bot. 

 Gaz. 80:250). 



Eefs. — Lathyrus pauciflorus Fer. Bot. Gaz. 19:335 (1894), type loc. Koseburg, Ore., 

 Howell 677. L. polyphyllus Wats. Bot. King 78 (1871), "Oregon, California (^Brewer) and 

 Utah", not L. polyphyllus Nutt. (1838). L. ecirrhosus Hel. Muhl. 1 :54 (1904), type loc. s. slopes 

 Mt. Sanhedrin, Lake Co., Heller 5944. L. bradfeldianus Nels. Bot. Gaz. 54:411 (1912), type loc. 

 Silver City, Idaho, Macbride 927. Var. schaffneri Jepson, L. pauciflorus subsp. schaffneri 

 Piper, Proc. Biol. Soc. Wash. 31:194 (1918), based on next. L. parvifolius Wats. Proc. Am. 

 Acad. 17:345 (1882), type loc. San- Miguelito Mts., San Luis Potosi, Mex., Schaffner 812; not 

 L. parvifolius Eoth (1797). L. schaffneri Eydb. Mem. N, Y. Bot. Gard. 1 :258 (1900). 



10. L. polyphyllus Nutt. Oregon Pea. Stem erect, angled, II/2 to 2i/^ feet 

 high; herbage rather light-colored, perfectly glabrous; leaflets elliptic-ovate, ob- 

 tuse at base and apex, mucronulate, % to 21^ inches long; stipules as large as the 

 leaflets to half as large, ovate, acuminate or ovate-lanceolate, dilated below into a 

 rounded toothed lobe, 3 to 9 lines broad; racemes 5 to many-flowered; lower calyx- 

 teeth distinctly longer than tube; corolla rose-purple, fading blue or yellowish, 



7 to 8 lines long. 



Shady woods, 50 to 2500 feet : Mendocino Co. to Del Norte Co. North to British 

 Columbia. June-July. 



Tax. note. — In California Lathyrus polyphyllus reaches its most characteristic or distinctive 

 phase in the more northerly North Coast Kanges. Near the southern limits of its range it becomes 

 increasingly dif&cult to segregate from L. bolanderi. Where the ranges of L. polyphyllus and 

 L. bolanderi overlap in the north, the two forms apparently intergrade. 



Locs. — Ft. Bragg, Mendocino Co., W. C. Mathews 37 ; Sherwood, Mendocino Co., Davy 4" 

 Blasdale 1068; Idol House, Mendocino Co., Chandler 1075; Little Bear Harbor, Humboldt Co., 

 Bolander 6508; Bell Sprs. to Harris, Humboldt Co., Davy 5355, 5358; Buck Mt., Humboldt Co., 

 Tracy 2731 ; Korbel to Angel's Eanch, n. Humboldt Co., Jepson 1930 ; Smith Kiver, Del Norte Co., 

 Goddard 328 (approaching L. pauciflorus Fer. in number of leaflets and flowers). 



Var. insecundus Jepson. Kaceme not one-sided ; calyx-lobes subulate, very prominent in the 

 bud. — Near the ocean in Marin Co. (Olema). 



