278 PHANEROGAMOUS PLANTS. 



12. Astragalus filipes, Sp. Nov. 



A. Homalobus, appresse pubemdus ; caule gracili paniculato-ramoso ; 

 foliolis subremotis angustissime linearibus parvis (U?i. 3-4 longis) ; 

 pedunculis gracUlimis folio midto longioribus; racemoso sparsifloro ; 

 floribus in pedicello erectiusculo vel patente nutantibus ; calyce cam- 

 panidato liaud gibboso albido-puherulo, dentibus subulatis; corollce 

 albce vexillo carinam paullo superante ; legumine fere glabro lineari- 

 oblongo complanato basi in stipitem calyce ter longiorem angustato. 



Hab. Interior of Washington Territory, near Fort Okanagan. — 

 [This has also been collected by Burke, near Fort Hall, as appears 

 from specimens in the Hookerian herbarium, and recently by S. Wat- 

 son in Clarence King's Exploration. The above-cited character, which 

 was founded on the specimens of the present Expedition, is taken from 

 Gray's revision, above cited.] 



13. Astragalus multiflorus, Qray, Rev. Astrag. 



Hab. Upper Columbia and its tributaries. — The length of the stipe 

 is variable, and there are no stable characters to distinguish NuttalPs 

 Homalobus dispar from his H. multiflorus. 



14. Astragalus serotinus, Qray. 



Astragalus {Homalobus) serotinus, Gray, in Pacif. R. R. Expl., p. 47, t. 5, & Rev. 

 Astrag, 1. c. p. 229. 



Hab. Between the mouth of the Spokane River and Fort Colville, 

 on the Upper Columbia, Washington Territory. 



