366 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



6. Hosackia americana (Nutt.)- 

 Trx(foneUa americana Nutt. Gen. 2: 120. 1818. 

 Lotus sericeus Pursh, Fl. 2: 489. 1814. not DC. 1813. 

 Hosackia purMana Benth. Bot. Reg. 15: pi. 1257. 1829. 

 %Homckia unifoliata Hook. Fl. Bor. Am. 1: 135. 1830. 

 Hosackia elata glabra Nutt.: Torr. & Gr. Fl. 1: 327. 1838. 

 Hosackia elata Nutt. loc. cit. 



Hosackia jloribunda Nutt. Ice. cit. 



Type ixx-ALiTi': "On the banks of the Missouri." 



Range: Wa-shington to Minnesota, .south to California and Texas. 



Specimens exa.mined: EUensburg, H'Ai/«rf578; North Yakima, TFatt; Rock Island, 5an<j^ 

 berg d' Leiberg 427: Wenache, \V kited 1148; Tacoma, Flett 902; Falcon Valley, Suks- 

 dorf 23,12; Fort Colville, Lyall in 1860; Lake Chelan, Lake & Hull 430; Chelan, Elmer 493; 

 Rock Lake, Lake cfc Hull, August 3, 1892; head of Grand Coulee, AfcKay 24; Pullman, 

 Hull in 1892; Wawawai, Piper 1483; without locality, Vasey 270; Mount Carlton, ^reajffr 

 lo5: Clarks Springs, Kreager 108; Rattlesnake Mountains, Cotton 692; Walla Walla, 

 Griffitlis <fc 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 l)e accordetl subspecilic rank. 



6a. Hosackia americana pilosa (Nutt.). 



Hosackia jHlosa Nutt.; Torr. & Gr. Fl. 1: 327. 1838. 



Hosackia mollis Nutt. loc. cit. 



Type locality: "Plains of the Rocky Mountain range, towards the Oregon." 



Range: Washington, Oregon, and Idaho. 



Specimens e.\a.minei): Pullman, Hull, July 16, 1892. 



7. Hosackia denticulata Drew, Bull. Torr. Club 16: 151. 1889. 

 Lotus denticulatus Greene, Pittonia 2: 139. 1890. 



Type locality: "Mad River near Jarnigan's," California. 



Range: 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 cfc Cotton 371. 



Zonal distribution: Upper Sonoran and Transition. 



This species has Ijeen confused with //. subpinnata Torr. & Gr., from which it appears 

 clearly distinct. 



HEDYSARUM. 



Flowers purple 1 . //. occidentale. 



Flowers yellowish 2. //. sulphur escens. 



1. Hedysarum occidentale Greene, Pittonia 3: 19. 1896. 



Hedysarum uintahense A. Nelson, Proc. Biol. Soc. Wash. 16: 186. 1902, at least in part. 



Type locality: Olympic Mountains, Washington. 



Range: Washington to Saskatchewan and Wyoming. 



Specimens examined: Olympic Mountains, Piper 2227; Henderson 1850; J. M. Grant 

 156; Baldy Peak, Lamb 1318; without locality, Sandberg cfc Leiberg 494; Clallam County, 

 Elmer 2529. 



Zonal distribution: Arctic. 



This species is very close to H. boreale Nutt. {H. americanum (Michx.) Britton.), perhaps 

 not distinct from it. 



