PEA FAMILY 541 



branches near the base, 2-5 dm. high, the whole plant villous-pubescent or the leaflets, especially 

 the upper surface, glabrate. Leaflets 9-19, oblong-elliptic to ovate-oval, 1-2.5 mm. long, the 

 lower pair basal ; stipules herbaceous, lanceolate, auriculate at base, attenuate at apex ; peduncles 

 3-6 cm. long; bract borne about the middle of the peduncle, 5-7-foliolate and stipulate, rarely 

 wanting ; umbels 5-10-flowered ; pedicels slender. 2-3 mm. long ; calyx-tube 4 mm. long ; teeth 

 subulate, 1.5-2 mm. long; petals 10-12 rnm. long, standard and keel purple tipped with white, 

 wings white ; pod 2-3 cm. long, 2-3 mm. wide ; seeds ovoid. 



Wooded slopes, mainly Humid Transition Zone; Mendocino County to Monterey, California. Type locality: 

 collected by Douglas, probably at Monterey. April-June. 



Hosackia stipularis subsp. balsamifera (Kell.) Abrams. (Hosackia balsamifera Kell. Proc. Calif. Acad. 2: 

 123. 1861. Lotus balsamiferus Greene, Man. Bay Reg. 93. 1894.) Differs from the typical species in being 

 resinous-glandular or viscid throughout, and balsam-scented. The North Coast Range form is villous and clothed 

 with stalked glands, the Sierra Nevada form is viscid with sessile glands, and otherwise glabrous or merely 

 pubescent. Open woods, mainly Transition Zone; Siskiyou County to Lake and Mariposa Counties, California. 

 Type locality : no locality was given in the original description, nor on the type specimen. 



3. Hosackia rosea Eastw. Rose-flowered Hosackia. Fig. 2712. 



Hosackia rosea Eastw. Proc. Calif. Acad. II. 6: 424. pi. 55. 1896. 



Lotus stipularis var. subglaber Ottley, Univ. Calif. Pub. Bot. 10: 200. 1923. 



Lotus aboriginus Jepson, Fl. Calif. 2: 315. 1936. 



Stems prostrate to ascending, several from a perennial root, the whole plant glabrous or es- 

 sentially so. Leaflets mostly 7 or 9, elliptic, 10-15 mm. long, the lowest pair remote from the 

 base of the rachis ; stipules membranous, triangular-lanceolate ; peduncles 5-6 cm. long, equaling 

 or exceeding the leaves; bract when present near the middle of the peduncle, unifoliate or re- 

 duced and membranous; calyx purple, 3.5 mm. long, the teeth short, triangular; corolla 8-10 

 mm. long, rose-colored; pods 15-35 mm. long, 3 mm. wide. 



Open woods, Humid Transition Zone; Puget Sound, Washington, to Mendocino County, California. Type 

 locality : along the road to Glen Blair near Fort Bragg, Mendocino County, California. May-July. 



4. Hosackia crassifolia Benth. Broad-leaved Hosackia. Fig. 2713. 



Hosackia crassifolia Benth. Trans. Linn. Soc. 17: 365. 1837. 

 Hosackia stolonifera Lindl. Bot. Reg. 23 : pi. 1977. 1837. 

 Hosackia platycarpa Nutt. in Torr. & Gray, Fl. N. Amer. 1 : 323. 1838. 

 Hosackia stolonifera var. pubescens Torr. Pacif. R. Rep. 4 : 79. 1857. 

 Lotus crassifolius Greene, Pittonia 2: 147. 1890. 



Stems one to several from the perennial root, stout, 4-10 dm. high. Leaflets mostly 9-13, 

 the lower pair distant from the base of the rachis, elliptic to cuneate-obovate, 10-25 mm. long, 

 pale green, puberulent, with incurved hairs, glabrate in age; stipules membranous, triangular- 

 lanceolate ; peduncles 5-8 cm. long, shorter than the leaves ; bracts usually present, remote from 

 the umbel, 1-5-foliolate ; flowers 8-15; pedicels 2-4 mm. long; calyx 4 mm. long, the teeth short, 

 triangular ; petals 8-10 mm. long, greenish yellow, marked with purple ; pods 4-6 cm. long, 4-5 

 mm. wide. 



Open dry situations, mainly Arid Transition Zone; Mason and Klickitat Counties, Washington, south to 

 San Diego County, California. Type locality: California, collected by Douglas, probably in the Coast Ranges of 

 central California. April-July. 



5. Hosackia pinnata (Hook.) Abrams. Pinnate-leaved Hosackia. Fig. 2714. 



Lotus pinnatus Hook. Bot. Mag. 56: pi. 2913. June, 1829. 

 Hosackia bicolor Dougl. ex Benth. Bot. Reg. 15: pi. 1257. Aug. 1829. 

 Lotus bicolor Frye & Rigg, Northwest Fl. 234. 1912. 



Perennial from a thickened root, the stems usually ascending, simple, rather stout, 15-45 cm. 

 high, minutely and very sparsely strigose, the plant otherwise glabrous. Leaflets 5, 7 or usually 

 9, obovate, 1-2 cm. long, petiolulate ; stipules ovate, scarious; peduncles well exceeding the 

 leaves, 5-10 cm. long, bractless except for some minute scarious involucral bracts ; umbels several- 

 to many-flowered ; calyx-tube 5 mm. long ; teeth very unequal, the lower subulate, 2-3 mm. long, 

 the upper much shorter; petals 12 mm. long with well exserted claws, standard and keel yel- 

 low, wings white ; pods 4-6 cm. long, 2 mm. broad ; seeds oblong. 



Stream banks and wet meadows, Transition and Canadian Zones; Puget Sound, Washington, to northern 

 Idaho and south to the central Sierra Nevada and Lake County, California. Type locality: between Fort Van- 

 couver and the Grand Rapids of the Columbia. April-July. 



6. Hosackia gracilis Benth. Slender or Coast Hosackia. Fig. 2715. 



Hosackia gracilis Benth. Trans. Linn. Soc. 17: 365. 1837. 

 Lotus formosissimus Greene, Pittonia 2: 147. 1890. 



Stems several from a perennial root, slender, decumbent, 10-45 mm. long, whole plant gla- 

 brous. Leaflets 5-9, elliptic to broadly obovate, 7-20 mm. long, the lowest pair of leaflets remote 

 from the base of the rachis ; stipules membranous, triangular-lanceolate ; peduncles 4-8 cm. long, 

 about equaling or exceeding the leaves; bract subtending the umbel, 3-5-foliolate ; calyx-tube 

 3 mm. long ; teeth subulate, about equal, 2 mm. long ; corolla 12-14 mm. long, wings spreading, 

 rose-colored, keel tipped with purple ; pod about 3 cm. long and 2 mm. wide ; seed oblong. 



Wet grassy places, mainly Humid Transition Zone; coastal region, Chehalis County, Washington, to Mon- 

 terey County, California. Type locality: California, collected by Douglas, probably at Monterey. March-July. 



