384 LEGUMINOSAE 



white with large purplish spot; pod 2 to 4 inches long or more, 1 inch wide. — Native of Asia, 

 cultivated extensively in California, sometimes a transient escape. 



3. V. hirsuta S. F. Gray. Tine Tare. Stems several from the annual root, 

 2 to 3 feet long; herbage subglabrous or hirsutulose; leaves subsessile; leaflets 6 to 

 22, narrowly linear, 2 to 7 lines long; peduncles filiform, shorter than the leaves; 

 racemes densely 4 to 9-flo\vered, commonly 3 to 4 lines long; flowers l^/^ to 2 lines 

 long; corolla pale blue; pods oblong, 3V^ to 6 lines long. 



Introduced from Europe, naturalized locally, 20 to 2000 feet: coastal region 

 and Sierra Nevada foothills. May. 



Locs. — Eureka, Tracy 2513 in 1906, Peirson 3630 in 1928; Stitz Creek, betw. South Fork 

 and Scotia, Tracy 4689 in 1916; Pine Log, South Fork Stanislaus River, A. L. Grant 687; San 

 Francisco, Alice King in 1915. 



Eefs.— ViciA HIRSUTA S. F. Gray, Nat. Arr. Brit. PI. 2:614 (1821). Ervum hirsutum L. 

 Sp. PI. 738 (1753), type European. 



4. V. tetrasperma Moench. Slender Tare. Stems slender, few from the an- 

 nual root, 1 to 2 feet long; herbage subglabrous; leaves subsessile; leaflets 4 to 8, 

 linear, 2 to 7 lines long; racemes 1 to 3 (or 4) -flowered, the flowers discrete, the 

 peduncles filiform, equaling or a little shorter than the rachis proper; flowers 2 

 lines long; corolla purplish and dull white; pods narrowly oblong, 4 to 6 lines long. 



Introduced from Europe, locally and sparingly naturalized, 10 to 1000 feet: 

 coastal districts. ]\Iay-June. 



Locs.— Eureka, Tracy 3739 in 1912; Manning Creek, Humboldt Co., M. S. BaJcer 92; Stitz 

 Creek, betw. South Fork and Scotia, Tracy 4688 in 1916; Mt. Soledad, w. San Diego Co., 

 Newlon 286. 



Eefs. — ViciA TETRASPERMA Moench, Meth. 148 (1794). Ervum tetraspermum L. Sp. PI. 738 

 (1753), type European. 



5. V. exignia Nutt. California Vetch. Stems very slender, 1 to 2 feet high; 

 leaflets 4 to 12, oblong to narrowly linear, acute or obtusish, apiculate, i/3 to 1^/4 

 inches long; peduncles filiform, shorter than the leaves, ^/^ to 2 inches long, 1 or 

 2-flowered ; flowers 2 to 3 lines long, white or purplish ; pods glabrous, 4 or 5-seeded, 

 1 inch long, 2 to 3 lines wide; seeds 1 to 1^4 lines in diameter, the hilum very short. 



Woods, opens amongst brush, or fields, in stony or sandy soil, 20 to 1500 feet: 

 Coast Ranges from Napa Co. to San Luis Obispo (3o. ; southward to San Diego Co. 

 Apr.-May. 



Locs. — Calistoga, Tracy 2097; Clayton, Chesnut 4" Drew; Tracy, Benj. Cobb; San Mateo 

 Creek, San Mateo Co., Davy 1076; Hadley, San Luis Obispo Co., Gondii; Santa Cruz Isl., T. 

 Brandegee ; Santa Monica Canon, Barber 112; Garvanza, Los Angeles, E. D. Palmer ; San Gabriel 

 Eiver (at mouth of canon), Peirson 2127; San Bernardino, Parish 4164; Menifee, Eiverside Co., 

 Alice King; Fallbrook, San Di€go Co., Abrams 3839; Witch Creek, San Diego Co., Alderson. 



Var. hassei Jepson. Stouter; leaflets of at least the lower leaves deeply notched at apex, 

 the notch mucronate ; pod 5 to 8 or sometimes only 3-seeded. — Coast Eanges from Alameda Co. 

 to San Luis Obispo Co. ; coastal Southern California. 



Locs. — Oakland, Ghesnut; Liverraore, Jepson 13,615; Pacific Grove, Heller 6672; Estrella, 

 Jared; Santa Monica (Proc. S. Cal. Acad. 1:6) ; Menifee, Alice King. 



Eefs.— ViciA EXiGUA Nutt.; T. & G. Fl. 1:272 (1838), type from "plains of the Oregon and 

 Upper California", Nuttall; Jepson, Fl. W. Mid. Cal. 296 (1901), ed. 2, 237 (1911), Man. 581 

 (1925). Var. hassei Jepson, ll.cc. V. hassei Wats. Proc. Am. Acad. 25:129 (1890), type loc. 

 open hills about Los Angeles, Basse. 



6. V. americana Muhl. American Vetch. Stems 2 to 3 feet long, trailing or 

 climbing by branched tendrils, sharply 4-sided or winged at the angles; herbage 

 nearly glabrous; leaflets broadly oblong, usually often widest above the middle, 

 obtuse, mucronulate, ^'2 to 1^^ inches long; peduncles shorter than the leaves, 4 to 

 7 or 8-flowered; flowers at first purplish, changing to bluish, 9 lines long; calyx- 

 tube 2 lines long, the lower teeth the longer (1 line long), the upper approximate, 



