366 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
6. Hosackia americana (Nutt.). 
Trigonella americana Nutt. Gen. 2: 120. 1818. 
Lotus sericeus Pursh, Fl. 2: 489, 1814, not DC. 1813. 
Hosackia purshiana Benth. Bot. Reg. 15: pl. 1257. 1829. 
tHosackia unifoliata Hook. Fl. Bor. Am. 1: 135, 1880, 
Hosackia elata glabra Nutt.; Torr. & Gr. Fl. 1: 327. 1838. 
Hosackia elata Nutt. loc. cit. 
Hosackia floribunda Nutt. loc. cit. 
Type Locauity: “On the banks of the Missouri.’’ 
Rance: Washington to Minnesota, south to California and Texas. 
SPECIMENS EXAMINED: Ellensburg, Whited 578; North Yakima, Watt; Rock Island, Sand- 
berg & Leiberg 427; Wenache, Whited 1148; Tacoma, Flett 902; Falcon Valley, Suks- 
dorf 2332; Fort Colville, Lyall in 1860; Lake Chelan, Lake & Hull 430; Chelan, Elmer 493; 
Rock Lake, Lake & Hull, August 3, 1892; head of Grand Coulee, McKay 24; Pullman, 
Hull in 1892; Wawawai, Piper 1483; without locality, Vasey 270; Mount Carlton, Kreager 
155; Clarks Springs, Kreager 108; Rattlesnake Mountains, Cotton 692; Walla Walla, 
Griffiths & Cotton 552. 
ZONAL DistRiBUTION: Arid Transition and Upper Sonoran. 
Nuttall’s Hosackia elata glabra is a nearly glabrous plant matched by Cotton’s 801 from 
Toppenish. It should perhaps be accorded subspecific rank. 
6a. Hosackia americana pilosa (Nutt.). 
Hosackia pilosa Nutt.; Torr. & Gr. Fl. 1: 327. 1838. 
Hosackia mollis Nutt. loc. cit. . 
Type Locauitry: “ Plains of the Rocky Mountain range, towards the Oregon.” 
Rance: Washington, Oregon, and Idaho. 
SPECIMENS EXAMINED: Pullman, //ull, July 16, 1892. 
7. Hosackia denticulata Drew, Bull. Torr. Club 16: 151. 1889. 
Lotus denticulatus Greene, Pittonia 2: 139. 1890. 
Tyre Locauiry: “Mad River near Jarnigan’s,”’ California. 
Rance: Washington to California. 
SPECIMENS EXAMINED: Gulf of Georgia, Henderson in 1892; Whidby Island, Gardner 
66; Fairhaven, Piper 2809; Columbia River, latitude 46° to 49°, Lyall in 1860; Ellens- 
burg, Elmer 370; Whited 509; Piper 2743; without locality, Vasey in 1889; Colville Res- 
ervation, Griffiths & Cotton 371. 
ZONAL DISTRIBUTION: Upper Sonoran and Transition. 
This species has been confused with H. subpinnata Torr. & Gr.,from which it appears 
clearly distinct. 
HEDYSARUM. 
Flowers purple.....-..--.------------------ 22-2 eee ee ee eee eee 1. HT. occidentale. 
Flowers yellowish...............-.-.--------------------------- 2. H. sulphurescens. 
1. Hedysarum occidentale Greene, Pittonia 3: 19. 1896. 
Hedysarum uintahense A. Nelson, Proc. Biol. Soc. Wash. 15: 186. 1902, at least in part. 
Type Locatity: Olympic Mountains, Washington. 
Rance: Washington to Saskatchewan and Wyoming. 
SPECIMENS EXAMINED: Olympic Mountains, Piper 2227; Henderson 1850; J. M. Grant 
156; Baldy Peak, Lamb 1318; without locality, Sandberg & Leiberg 494; Clallam County, 
Elmer 2529. 
ZONAL DISTRIBUTION: Arctic. 
This species is very close to H. boreale Nutt. (41. americanum (Michx.) Britton.), perhaps 
not distinet from it. 
