198 FABACEAE. 



2. H. oblongifolia (Benth.) Greene. Erect, slender, 3-4 dm. high, 

 somewhat appressed-pubescent; leaflets 7-11, narrowly oblong or 

 oblanceolate, 2,5-3 cm. long, acute; stipules small, acute; peduncles 

 exceeding the leaves, 5-7-flowered; bract subsessile, 1-3-foliate; 

 flowers 15 mm. long; calyx-teeth subulate, nearly equaling the 

 tube; corolla yellow, turning purplish or brownish; pod slender, 

 5 cm. long. 



Occasional along mountain streams. 



3. H. lathyroides D. & H. Slender, branching and somewhat 

 flexuose, 2.5-4 dm. high, minutely pubescent; leaflets 5-7, linear- 

 lanceolate, acute at both ends; stipules triangular, 2 mm. long, 

 scarious, ovate-acuminate; umbels 1-3-flowered, with or without a 

 linear-lanceolate bract; flowers 10 mm. long; calyx-teeth linear, 

 acute; pod as in the last. 



Along streams near Los Angeles and in San Gabriel Canyon. 



4. H. americana (Nutt.) Piper. Annual; erect or decumbent, 

 2-6 dm. high, more or less villous; leaflets 1-3 or rarely 5, ovate to 

 oblong, acutish, 12-15 mm. long; peduncles slender, exceeding the 

 leaves; bracts 6-12 mm. long; flowers solitary, salmon-colored or 

 often whitish; calyx-tube short; the teeth linear, equaling the 

 corolla; pod 2-3 cm. long; seeds oblong, smooth, dark-colored. 

 {H. purshiana Benth.) 



Frequent in the foothills and mountains. June-September. 



5. H. wrangeliana G. Don. Annual; much branched, decumbent 

 or ascending, 1-3 dm. long; sparsely or canescently villous, leafy; 

 leaflets usually 4, cuneate-obovate to oblong, 6-12 mm. long; calyx- 

 teeth broadly subulate, equaling the tube; corolla 6 mm. long, 

 yellow; standard broadly ovate, erect; pod pubescent, straight, 

 14-20 mm. long, 5-7-seeded. 



Frequent on dry hillsides and plains. March-May. 



6. H. brachycarpa Benth. Much resembling depauperate forms 

 of the last but more diffuse; herbage soft villous; flowers nearly 

 sessile, yellow; calyx-teeth linear, much longer than the tube; pod 

 oblong, 1 cm. long, pilose, 2-3-seeded. {Lotus humistratus Greene.) 



Habitat of the last and as generally distributed, but less common. 



7. H. parviflora Benth. Erect, slender, 5-20 cm. high, glabrous; 

 leaflets 3-5, obovate and small to narrowly oblong and 12-16 mm. 

 long; peduncles filiform; bracts 1-3-foliate; flowers 4 mm. long or 

 less, yellow, turning reddish; keel sharply incurved at apex, about 

 equaling the wings; blade of standard cordate; pod 2.5 cm. long, 

 compressed, constricted between the seeds; seeds oval or roundish, 

 slightly compressed, smooth. {Lotus micranthus Benth.) 



Santa Monica and Santa Ana Mountains in open grassy places. 

 Not common. April-June. 



8. H. maritima Nutt. Ascending or decumbent, minutely 

 strigose or nearly glabrous, somewhat succulent, the branches 2-4 

 dm. long; leaflets 4-6, obovate, obtuse, 8-12 mm. long; peduncles 

 about equaling the leaves, 1-4-flowered; bracts 1-3-foliate or some- 

 times wanting; flowers yellow, 6-8 mm. long; calyx-teeth linear- 

 subulate, about equaling the tube; standard and wings equaling the 



