366 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



6. Hosackia aniericana (Nutt.)- 

 Trigonella ajnericana Nutt. Gen. 2: 120. 1818. 

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

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

 %Hosackia unifoliata Hook. FI. Bor. Am. 1: 135. 1830. 

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

 Hosackia data Nutt. loc. cit. 



Hosackia Jloribunda Nutt. loc. cit. 



Type locality: "On the banks of the Missouri." 



Range: Washington to Minnesota, south to California and Texas. 



Specimens examined: Ellensburg, TF/ti/efZ57S; North Yakima, TFafi; Rock Island, Scrnc^ 

 berg & Leiberg 427; Wenache, Whited 1148; Tacoma, Fhtt 902; Falcon Valley, Suks- 

 dorf 2332; Fort Colville, Lyall in ISGO; Lake Chelan, Lake cfc Hull 4.30; Chelan, Elmer 493; 

 Rock Lake, Lake dfc Hull, August 3, 1S92; head of Grand Coulee, McKay 24; Pullman, 

 Hull in 1892; Wawawai, Piper 1483; without locality, Vasey 270; Mount Q&r\ion, Kr eager 

 15.5; Clarks Springs, Kreager 108; Rattlesnake Mountains, Cotton 692; Walla Walla, 

 Griffiths <& Cotton 552. 



Zonal distribution: Arid Transition and Upper Sonoran. 



Nuttall's Hosackia data glabra is a nearly glabrous plant matched by Cotton'.s 801 from 

 Toppenish. It should perhaps be accorded subspecilic rank. 



6a. Kosackia americana pilosa (Nutt.). 



Hosackia pilosa Nutt.; Torr. & Gr. Fl. 1: .327. 18.38. 



Hosackia mollis Nutt. loc. cit. 



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



Range: Washington, Oregon, and Idaho. 



Specimens examined: Pullman, Hull, July 1(), 1S()2. 



7. Hosackia denticulata Drew, Bull. Torr. Club 16: l.')l. 1889. 

 Lotus denticulatus Greene, Pittonia 2: 1.39. 1890. 



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



Range: Washington to California. 



vSpeci.mens examined: Gulf of Georgia, Henderson in 1892; Whidby Island, Gardner 

 66; Fairhaven, Piper 2809; Columbia River, latitude 46° to 49°. Lyail in 1860; Ellens- 

 burg, Elmer 370; Whited 509; Piper 2743; without locality, Vasey in 1S89; Colville Res- 

 ervation, Griffiths d' Cotton 371. 



Zonal distribution: Upper Sonoran and Transition. 



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

 clearly distinct. 



HEDYSARUM. 



Flowers purple 1. H. occidentale. 



Flowers yellowish 2. H. sulphur escens. 



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



Hedysarum uintahense A. Nelson, Proc. Biol. Soc. Wash. 15: 186. 1902, at least in part. 



Type locality: Olympic Mountains, W^ashington. 



Range: Washington to Saskatchewan and Wyoming. 



Specimens examined: Olympic Mountains, Piper 2227; Henderson 18.50: J. M. Grant 

 156; Baidy Feak„Lamb 1318; without locality, Sandberg d- Leiberg 494; Clallam County, 

 Elmer 2.529. 



Zonal distribution: Arctic. 



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

 not distinct from it. 



