OF ARTS AND SCIENCES: NOVEMBER 11, 1863. 229 



name may as well be taken up for this species from the same district. 

 No specimens named by Douglas are extant. 



■*-+ ++ Calycis dentes aut breves aut tubo subfequantes. Stipulje su- 

 periores fere discrette. Graciles, rigiduli, ramosi, pinnatifolii vel 

 abortu subsimplicifolii, nunc petiolis nudis. Racemi laxiflori, 

 longius pedunculati. Flores ochroleuci, nunc purpureo suffusi ; 

 carina prtesertim violaceo tincta vexillo parum breviore. 



99. A. CAMPESTRis. Homalobus campestris & (forma depauperata) 

 H. tenuifolius, Nutt. in Torr. & Gray, Fl. 1, p. 351. H. decumbens, 

 Gray in Enum. coll. Parry, Hall, & Harbour, no. 142, non Nutt. 

 Striguloso-cinereus, nunc glabrescens ; caulibus adsurgentibus (3 - 15- 

 pollicaribus) ; petiolis subcomplanatis rigidis sfepius 9 - 13-foliolatis, 

 suramis raro paucifoliolatis nudisve ; foliolis lanceolatis linearibus seu 

 lineari-subulatis plerumque acutis ; racemis 5 - 10-floris ; calycis denti- 

 bus tubo dimidio brevioribus ; carina apice inflexa longe rostratim 

 producta ; legumine oblongo-lineari (subpollicari) puberulo, valvis sub- 

 turgidis. — Colorado Territory, in valleys on both sides of the Rocky 

 Mountains. — Variable in size and in the leaflets, but well marked by 

 the long and narrow falcately inflexed tip to the carina. Flowers 

 rather large, fully 5 lines long when well developed, yellowish-white, 

 usually tinged with violet. 



100. A. SEROTINUS, Gray in Pacif. R. R. Surv. 12, 2, p. 47, t. 5. 

 Cinereo-puberulus, glabratus ; caulibus adsurgentibus (9 - 18-pollicari- 

 bus) ; petiolis omnibus pluri-(9 - 21-)foliolatis ; foliohs linearibus ; 

 racemis virgatis 9 - 20-flori3 ; calycis dentibus brevissimis (tubo 3-4- 

 plo brevioribus) ; carina apice brevi subangustata inflexa ; legumine 

 lineari fere glabro. — On the Okanagan near the Columbia River, lat. 

 48°, Oct., Dr. J. G. Cooper. — Flowers tinged with purple, almost as 

 large as in the preceding species, but the carina very different, having 

 a much shorter and broad inflexed tip. From the next species the 

 distinctions are not so certain, being chiefly the less pubescence and 

 the short calyx-teeth. 



101. A. DECUMBENS. Hoynololus decumbens, 'Nntt. 1. c. Cinereo- 

 vel sericeo-pubescens ; caulibus diffusis vel adscendentibus (6 - 10- 

 pollicaribus) ; petiohs nunc subcomplanatis plerisque pluri-(7 - 13-) 

 foliolatis ; foliolis lineari-lanceolatis acutis ; racemis 5 - 10-floris ; caly- 

 cis dentibus attenuatis tubo parum brevioribus ; carina apice brevi 

 inflexa ; legumine lato-lineari recto vel falcato (subpollicari) canes- 



VOL. VI. 22 



