PEA FAMILY 393 



Eefs. — Lathtrus poltphyllus Nutt.; T. & G. Fl. 1:274 (1838), type loc. "forests of the 

 Oregon [Columbia Eiver] to the sea," Nuttall; Jepson, Man. 585 (1925). Var. insecundus 

 Jepson, I.e., type loc. Olema, Marin Co., Jepson 13,644. 



11. L. sulphureus Brew. Snub Pea. Stems rather stout, 1 to 2 feet high; 

 herbage glabrous; leaflets 6 to 12, not closely paired on the rachis, or commonly 

 distinctly alternate, oblong-ovate to elliptic, cuspidate at apex, % to 2 inches long; 

 stipules small or large, mostly broad; peduncles 2 to 4 inches long; racemes mostly 

 dense, 1 to l^^ (or 2%) inches long, 6 to 25-flowered; pedicels recurved; lowest 

 calyx-tooth rather shorter than or equaling the tube, the upper teeth very short 

 or almost obsolete (% to % as long as the lateral teeth) ; corolla 5 to 7 lines long, 

 dull white or the banner slightly pinkish or purple-veined, all parts turning yel- 

 lowish-brown. 



Mountain slopes, 2200 to 6800 feet : inner North Coast Range from northern 

 Lake Co. to Siskiyou Co. ; Sierra Nevada from Kern Co. to Plumas Co. May- July. 



Note on flower. — The banner does not exceed, or scarcely, the wings and keel. The keel is 

 rounded and curved above so as to form a blunt or truncatish apex to the corolla, this bluntness 

 being a feature of the corolla in this species. The keel and wings are white or yellowish-white, 

 the whole corolla very soon becoming sordid, so that the close raceme of flowers is most conspicu- 

 ous for its sordidness. 



Locs. — Inner North Coast Eange: Snow Mt., n. Lake Co., T. Brandegee ; East "Weaver Creek, 

 Trinity Co., H. S. Yates 324; Klamath River near Yreka, Butler 707. Sierra Nevada: Greenhorn 

 Mts., Peirson 10,689; Cedar Creek, North Fork Kaweah River, Jepson 616a; Pinehurst, Fresno 

 Co., Newlon 205; Northfork, Madera Co., Noddin; Fresno Flats, Madera Co., Jepson 12,856; 

 Mariposa, Congdon; betw. Hazel Green and Yosemite, Jepson 13,625; Columbia, Tuolumne Co., 

 Jepson 6280; Gwin Mine, Calaveras Co., Jepson 1781a; Auburn, M. E. P. Ames; Blue Canon, 

 Placer Co., B. A. Walker 1291 ; Quincy, Heller 10,833 ; Brush Creek, Butte Co., Kate Conger. 



Var. argillaceus Jepson var. n. Herbage puberulent; leaflets 6 to 10, broadly elliptical; 

 stipules % to y^ the size of the leaflets; peduncles 1^4 to 3% inches long, equaling or slightly 

 exceeding the leaves; flowers 7 to 8 lines long. — (Herbae puberulae; foliola 6-10, late elliptica; 

 stipulae %-^/4 aeque magnae quam foliola; pedunculi unc. 1^4-3^2 longi, folia aequantes vel 

 parum superantes; flores lin. 7-8 longi.) — Rolling plains of western Tehama and Shasta Cos.: 

 Rosewood, Jepson 13,635 (type) ; Crane Creek, Jepson 13,634; Redding, BlanTcinship. 



Refs. — Lathtrus sulphureus Brew.; Gray, Proc. Am. Acad. 7:399 (1868), type from the 

 Sierra Nevada foothills; Jepson, Man. 584 (1925). L. ochroleucus var. Torr. Pac. R. Rep. 4:77 

 (1857), type loc. hillsides, Murphy's, Calaveras Co., Bigelow. L. ochropetalus subsp. holochlorus 

 Piper, Proc. Biol. Soc. Wash. 31 : 190 (1918), type loc. hills s. of Corvallis, Ore., H. C. Gilbert 115. 

 L. ochroleucus of various authors (not of Hooker). Var. argillaceus Jepson, 



12. L. maritimus Bigelow var. glaber Eames. Sand Pea. Stems stout, 1 to 

 2 feet high, at length decumbent; herbage glabrous; leaflets elliptic, obtuse at apex, 

 mucronulate, % to 1% inches long; stipules broadly ovate, acute, as large as or 

 approximating the leaflets; upper calyx-teeth % to % as long as the lower; corolla 

 purple, 9 to 10 lines long; ovary heavily glandular-pubescent; pods red-brown, 1% 

 to 2 inches long, 4I/2 to 5I/2 lines wide. 



Sandy ocean beaches : Humboldt Co. to Del Norte Co. North to Alaska; shores 

 of the Great Lakes, Labrador and Arctic Ocean. June- Aug. 



Locs. — Eureka, Tracy 3736; Crescent City, Jepson 9390. Aleutian Isls. : Dutch Harbor, 

 Jepson 117. 



Refs. — Lathtrus maritimus Bigelow, Fl. Bost. ed. 2, 268 (1824). Pisum maritimum L. 

 Sp. PI. 727 (1753), type European. Var. glaber Eames, Rhod. 11:95 (1909). Pisum maritimum 

 var. glairum Ser.; DC. Prod. 2:368 (1825), type from Canada. L. calif ornicus Dougl. ; Lindl. 

 Bot. Reg. t. 1144 (1828), type cult, from spms. from Northwest Coast, Douglas. L. pisiformis 

 Hook. Fl. Bor. Am. 1:158 (1834), based on North American plants. L. maritimus Jepson, Man. 

 584 (1925), not Bigelow (1824). 



13. L. palustris L. Marsh Pea. Stems glabrous or pubescent, slender, climb- 

 ing, 2 to Zy2 feet long; wings often broad; leaflets usually 4 to 6, oblong to linear- 

 oblong, firm, 1 to 1% inches long ; tendrils long, branched or simple ; stipules nar- 

 row, semi-sagittate, % to % inch long; peduncles exceeding rachis, 3 to 6-flowered; 

 lower calyx-teeth lanceolate, about as long as the tube, upper deltoid, very short; 

 flowers blue (in ours), 7 to 9 lines long; pods glabrous, about 2^4 inches long. 



