PIPER FLORA OF THE STATE OF AVASHINGTOjST. 365 



Pods curved, pubescent, 1 or 2-?ieeded: floweis yellow: foliage 



pubescent 4. //. decumhens. 



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 5. H. pnrrifjiira . 



Flowers 5 to 6 mm. long: leaflets ovate to lanceolate, usuallv 



villous 6. //. (imericaua. 



Peduncles very short, the flowers nearly sessile: calyx lobes denticu- 

 late _ 7. //. (hnticuhitd. 



1. Hosackia bicolor Dougl. Bot. Iveg. 15: /»/. 1257. 1S29. 



Lotus pinnatus Hook. Bot. Mag. 56: pJ. 2'.nS. 1S29 (December 1). 



Type locality: "In overflowed meadows between Fort Vancouver and the Grand 

 Rapids of the Columbia." Collected by Douglas. 



R.\nge: Washington and Idaho to California. 



Specimens ex.\mined: Woodlawn, Henderson, June, 1892: Olympia, Kincaid, July, 

 1S96: Mount Stuart, Elmer 1161: Columbia Valley, LyaJl in 1.S60: Palouse River, Lyall in 

 1860: Pullman, Hull 782: without locality. Cooper: Seattle, Piper in 1888. 



Zonal distribi'tion: Transition. 



2. Hosackia gracilis Benth. Trans. Linn. Soc. 17: 36.5. 1837. 

 Lotus formosissiinus Greene, Pittonia 2: 147. 18iW. 



Type locality: California. Collected by Douglas. 



Range: Washington to Monterey Bay, California. 



Specimens examined: Montesano, //e?/*^ 3934 : Henderson 23.^. 



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

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

 Hosackia platycarpa Nutt.; Torr. & Gr. Fl. 1: 323. 1838. 



Lotus o'assifolius Greene, Pittonia 2: 147. 1890. 



Type locality: California. Collected by Douglas. 



Range: Washington to southern California. 



Specimens examined: Montesano, Heller 3925; ]\lason County, Piper 1044: Chehalis 

 County, Lamb 1170; Tacoma, Flett 55; Steilacoom, Hoirell in 1878; Dalles, Lyall in 1860: 

 Klickitat County, Suksdorf. 



Zonal distribution: Transition. 



4. Hosackia decumbens Benth. Bot. Reg. 15: under pi. 12'>7. 1829. 

 Lotus douylasii Greene, Pittonia 2: 149. 1890. 



Type locality: "Northwest coast of America." Collected by Douglas. 



Range: Washington to Idaho and California. 



Specimens examined: Mason County, Piper 57: between Olympia and Gate City, Heller 

 4047; west Klickitat County, Sutsf/o// 112; Loon Lake, ll'i/i.ston, July 20, 1897: Spokane, 

 Piper, July, 1896; Henderson, July, 1892; Elmer 376; Spokane, Krear/er 2; Dalles, Luedl 

 in 1860. 



Zonal distribution: TransitioiL 



5. Hosackia parviflora Benth. Bot. Reg. 15: )inder pi. 1257. 1829. 

 Hosackia microphylla Nutt.; Torr. & Gr. Fl. 1: 326. 1838. 



Lotus micranihus Benth. Trans. Linn. Soc. 17: 367. 1837. 



Type locality: "Northwest coast of America." Collected by Dougjas. 



Range: 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 Qouniy, Suksdorf oZ'i: without locality, roo;>fr.- Lyall; Vancouver, Piper 

 4930. 



Zonal dlstribution; Humid Transition. 



