LEGUMINOS^. 45 



1 1 1 Flowers nearly sessile and mostly solitary, not bracteate {see 12) : leaves with a hroad 

 rachis which bears 3 to 5 leaflets at the end and one side. 



15. H. subpinnata, T. & G. Much branched, usually decumbent or ascending and 

 a few inches high: flowers yellow. Very common in Central Cal. 



Var. major. Erect, corymbosely branched above, 6 inches to 3 ft. high, flowers pinkish. 

 Northern Cal. to Washington. 



16. H, brachycarpa, Benth. Soft-hairy: flowers yellow: hairy pod 2-4-seeded. 



§ 2. Pod with a long slender incurved beak, I -S- seeded: claw of the staiulard remote from 



the rest: umbels sessile or on short peduncles {except Nos. Id, 20): flowers less than 



6 lines long: stipules minute dark colored glands: leaflets 3 to 7. 



* Nearly glabrous: slender stems virgately braiiched: 2>od only slightly pubescent, 2-sceded. 



t Somewhat woody at the base: stems angled: leaflets mostly 3. 



17. H. glabra, Torr. Stems very many erect or decumbent: leaves and fl's crowded. 



18. H. cytisoides, Benth. Similar: peduncles with a bract: calyx-teeth often recurved. 

 It). H. juncea, Benth. Leaflets broader: some of the flowers pedunculate. 



1 1 Not woody: stems terete: leaflets usually 5 to 7, and 2 or 3 lines long. 



20. H. prostrata, Nutt. Leaflets obovate, acute: flowers 2 or 3 lines long. 



21. H. micrantha, Nutt. Flowers smaller: peduncle naked: style hairy. 



* * Very silky or tomentose; herbaceous stems terete: pod hairy: mostly 1-seeded: leaflets 5 to 



7 (usually 3 in 22). 



22. H. sericea, Benth. Densely white-silky: umbels loosely few-flowered. 



23. H. argophylla, Gr. Umbels G-lO-flowered: flowers orange or yellow. Sierras. 



24. H. decumbens, Benth. Villous and tomentose: stems difi"use: Ivs and fls crowded. 



25. H. toraentosa, H. & A. Very tomentose, prostrate: flowers 3 or 4 lines long. 



26. H. Heermaunii, D. & H. Less tomentose more branched: leaflets and fl's smaller. 



8. PSORALEA, Linnaeus. 



Leaflets 3, orbicular on long petioles from creeping stem ., 1 



Leaflets 3, rombic-ovate to narrowly ovate: stems erect 2, 3, 4 



Leaflets 5, rarely 7 : clustered stems very short 5 



1. P. obicularis, Lindl. Peduncles a foot or two long. In wet ground. Cal. 



2. P. strobilina, H. & A. Stems 2-3 ft. high: peduncles shorter than the leaves. Cal. 

 3 P. macrostachya, DC. Often 6 ft. high or more: peduncles exceeding the leaves. 



4. P. physodea, Dougl. Stems numerous, 1 or 2 ft. high: flowers greenish. Coast. 



5. P. Californica, Watson. Silky-gray: leaves exceeding the close racemes. Hare. 



9. AKOBPHA, Linnsens. 



1. A. Calif omica, Nutt. Glandular, 3 to 10 ft. high: standard exceed by stamens. 



10. GLYCYRRHIZA, Linnaeus. 

 1. G. lepidota, Nutt. var. glutinosa, Watson. Flowers white or pinkish, 6 lines long. 



