386 LEQUMINOSAE 



what cylindric-fleshv at irregular intervals. Tlie root-tip of these structures is recurved at the 

 very end, so that, advancing througli the soil, it presents a blunt surface. 



Locs.— S. CaL: Cuyamaca J*Its. (Dav. & Mox. Fl. S. Cal. 192); Santiago Peak (Dav. & 

 Mox. Fl. S. Cal. 192), Sierra Nevada: Tehachapi Valley, Coville ^ Funston 1120; Colony Mill to 

 Giant Forest, Jcpson 067; Millwood, Fresno Co., Jep.son 2786; Eight-mile sta., near Wawoua, 

 Jcpson 4291 ; Alder Creek, Yosemite, Jepson 4325 ; Ilodgdon Ranch, Tuolumne Big Trees, Jepson 

 10,544; Hazel Green, Mariposa Co., Jepson 13,613; Avery, Calaveras Co., Tracy 5748; Savage 

 Hill, Amador Co., Hansen 343; Camino, 7 mi. above Placerville, K. Brandegee ; Mineral, Tehama 

 Co., J. Grinncll; Forcstdale, sw. Modoc Co., M. S. BaJcer. North Coast Ranges: Trinity Summit, 

 Manning 62; Greenhorn Mt., Siskiyou Co., Butler 604; Humbug Mt., Siskiyou Co., Butler; East 

 Fork Illinois River, Siskiyou Mts., Jepson 2943. 



Var. madrensis Jepson var. n. Leaflets strongly serrate above the base. — (Foliola serrata 

 supra basin). — North Fork, Madera Co., Balph Noddin (type). 



Eefs. — ViciA CALiFORNiCA Greene, Fl. Fr. 3 (1891), type loc. Calaveras Co., Greene; Jepson, 

 Man. 582 (1925). F. durbrowii Eastw. Bull. Torr. Club 32:196 (1905), type loc. Wawona, East- 

 wood. V. truncata var. villosa Kell. Proc. Cal. Acad. 1:57 (1855), type loc. Placerville. Var, 

 MADRENSIS Jepson. 



8. V. gigantea Hook. Giant Vetch. Stems stout, somewhat pubescent, climb- 

 ing several feet high, often forming extensive tangles and draperies over shrubs; 

 leaflets narrowly oblong or tapering somewhat from the base to the obtuse mucro- 

 nulate apex; racemes I14 to 2 inches long; calyx short, lower teeth about equaling 

 the tube; corolla red-purple or pale saffron, 6 to 7 lines long; pods oblong, l^/^ 

 inches long, glabrous, glaucous, 3 or 4-seeded; seeds globose, velvety black, 2 lines 

 in diameter, more than halfway encircled by the hilum. 



Along streams, 10 to 500 feet: near the coast from northwestern San Luis 

 Obispo Co. to Humboldt Co. North to Alaska. Mar.-June. The herbage blackens 

 in drying. 



Locs. — San Carpoforo, n. San Luis Obispo Co., Gondii; Plasketts, Monterey Co., K. Brande- 

 gee; Carmel, Parish 11,548; Pescadero, San Mateo Co., Elmer 4445; Lobos Creek, San Francisco, 

 Eastwood; Berkeley, Jepson 6226; Duncans Mills, Sonoma Co., Davy 1649; Hubbard sta., Hum- 

 boldt Co., Davy 5434; Petrolia, Humboldt Co., Jepson 13,640; Eureka, Tracy 2986. 



Eefs. — ViciA GiQANTEA Hook. Fl. Bor. Am. 1:157 (1839), type loc. open vroods on the Co- 

 lumbia River, Scouler, Douglas; Jepson, Fl. W. Mid. Cal. 297 (1901), ed. 2, 237 (1911), Man. 

 582, fig. 578 (1925). Lathyrus cinctus "Wats. Proc. Am. Acad. 23:263 (1889), type loc. "Jolon", 

 Monterey Co., T. Brandegee ; the real station is, perhaps, Plaskett's ranch on the coast. 



9. V. cracca L. Bird Vetch. Stems 3 to 4 feet high, striate-angled ; herbage 

 puberulent; leaflets 16 to 24, linear, approximate, % to 1^/4 inches long; racemes 

 equaling or surpassing the leaves, densely 9 to 12-flowered, 1^/4 to 1% inches long; 

 corolla bright blue-purple, 5 lines long; pods % inch long, glaucescent, few-seeded; 

 seeds dull black, I14 lines in diameter, nearly half encircled by the hilum. 



Fields, 4000 to 5000 feet : native of northeastern United States and of Europe, 

 naturalized in northern Modoc Co. Also in southeastern Oregon. July. 



Locs. — Goose Lake, Modoc Co., Austin 4" Bruce 2220; Davis Creek, Modoc Co., B. M. Austin; 

 Ft. Bidwell, Manning. 



Eefs. — ViciA CEACCA L. Sp. PI. 735 (1753), type from Europe. V. semicincta Greene, Ery- 

 thea 3:17 (1895), type loc. Crane Creek, se. Ore., B. M. Austin; Erythea 4:56 (1896) ; Jepson, 

 Man. 582 (1925). 



28. LATHYRUS L. Pea 



Herbs, ours perennial. In technical character and in habit very similar to 

 Vicia. Kaceme commonly one-sided. Flowers commonly larger and more showy. 

 Banner roundish or very broad. Calyx-teeth very unequal, the three lower longer, 

 the two upper much reduced. Leaflets usually larger, in ours 3 to 5 pairs, mostly 

 mucronate; rachis in some species not prolonged into a tendril. Style flattish, 

 hairy along the upper side only, that is, next the free stamen. — Species about 100, 

 mostly northern hemisphere, all continents except Australia. (Old Greek name of 

 the pea.) 



