PIPER—FLORA OF THE STATE OF WASHINGTON. 365 
Pods curved, pubescent, 1 or 2-seeded; flowers yellow; foliage 
pubescent ......--------- +--+ ---- 2-2 e ee ee eee ee ee ee ee eee 4. H. decumbens. 
Annuals: flowers solitary or sometimes two on the peduncles of the first species. 
Peduncles usually exceeding the leaves. 
Flowers 3 to 4 mm. long; leaflets oblong to ovate, usually gla- 
brous .....------------ 22 e eee ee ee ee eee eee eee 5. H. parviflora. 
Flowers 5 to 6 mm. long; leaflets ovate to lanceolate, usually 
villous ........--.-------------- 22 ee eee eee eee eee 6. H. americana. 
Peduncles very short, the flowers nearly sessile; calyx lobes denticu- 
late 20.2. ee ee ee ee ee ee eee eee 7. H. denticulata. 
1. Hosackia bicolor Doug. Bot. Reg. 15: pl. 1257. 1829. 
Lotus pinnatus Hook. Bot. Mag. 56: pl. 2913. 1829 (December 1). 
Type Locauity: “In overflowed meadows between Fort Vancouver and the Grand 
Rapids of the Columbia.’’ Collected by Douglas. 
Rance: Washington and Idaho to California. 
SPECIMENS EXAMINED: Woodlawn, Henderson, June, 1892; Olympia, Kincaid, July, 
1896: Mount Stuart, Elmer 1161; Columbia Valley, Lyall in 1860; Palouse River, Lyall in 
1860: Pullman, Hull 782; without locality, Cooper; Seattle, Piper in 1888. 
ZONAL DISTRIBUTION: Transition. 
2. Hosackia gracilis Benth. Trans. Linn. Soc. 17: 365, 1837. 
Lotus formosissimus Greene, Pittonia 2: 147. 1890. 
Type Locaity: California. Collected by Douglas. 
Rance: Washington to Monterey Bay, California. 
SPECIMENS EXAMINED: Montesano, Heller 3934; Henderson 2350. 
b 
3. Hosackia crassifolia Benth. Trans. Linn. Soc. 17: 365, 1837. 
Hosackia stolonifera Lind]. Bot. Reg. 23: pl. 1977. 1837. 
Hosackia platycarpa Nutt.; Torr. & Gr. Fl. 1: 323. 1838. 
Lotus crassifolius Greene, Pittonia 2: 147. 1890. 
Type Locauity: California. Collected by Douglas. 
Rance: Washington to southern California. 
SPECIMENS EXAMINED: Montesano, Heller 3925; Mason County, Piper 1044; Chehalis 
County, Lamb 1170; Tacoma, Flett 55; Steilacoom, Howell in 1878; Dalles, Lyall in 1860; 
Klickitat County, Suksdorf. 
ZONAL DISTRIBUTION: Transition. 
4. Hosackia decumbens Benth. Bot. Reg. 15: under pl. 1257. 1829. 
Lotus douglasii Greene, Pittonia 2: 149. 1890. 
Type Locaurry: ‘ Northwest coast of America.’ 
Rance: Washington to Idaho and California. 
SPECIMENS EXAMINED: Mason County, Piper 57; between Olympia and Gate City, Heller 
4047: west Klickitat County, Suksdorf 112; Loon Lake, Winston, July 20, 1897; Spokane, 
Piper, July, 1896; Henderson, July, 1892; Elmer 376; Spokane, Kreager 2; Dalles, Lyall 
in 1860. 
ZONAL DISTRIBUTION: Transition. 
, 
Collected by Douglas. 
5. Hosackia parviflora Benth. Bot. Reg. 15: under pl. 1257. 1829. 
Hosackia microphylla Nutt.; Torr. & Gr. FI. 1: 326. 1888. 
Lotus micranthus Benth. Trans. Linn. Soc. 17: 367. 1837. 
Type Locatiry: ‘Northwest coast of America.”’ Collected by Douglas. 
Rance: British Columbia to California west of the Cascades. 
SPECIMENS EXAMINED: Montesano, Heller 3911; Chehalis County, Lamb 1151; Seattle, 
Piper, July, 1895; Olympia, Henderson, May, 1892; Port Ludlow, Binns, May 5, 1889; 
west Klickitat County, Suksdorf 533; without locality, Cooper; Lyall; Vancouver, Piper 
4930. 
ZONAL DISTRIBUTION: Humid Transition. 
