PLANTJL NOViE THURBERIANiE. 315 



vissimis 2-3-jugis; foliolis confertis (sesquilineam longis) obovatis ; spica brevi den- 

 sissima ; calyce cum bractea oblongo-lanceolata acuminata eequilonga sericeo-villosis- 

 simo, dentibus subulatis tubo eequalibus corolla flavo-purpurea brevioribus ; vexillo 

 dilatato-reniformi parvo. — (Dry hills, near Buena Vista, Cohahuila, Dr. Gregg.) 

 Cerro Gordo, Cohahuila ; November, 1852. — Of this I have long possessed imperfect 

 specimens, gathered by Dr. Gregg in March, 1847. Mr. Thurber's specimens from the 

 same district enable me to give its characters. It is a small, depressed or diffuse, 

 suffruticose species ; the ascending, decumbent, or even creeping flowering branches 

 varying from 2 or 3 inches to a foot in length, slender, and minutely tuberculate with 

 sparse glands, which are more apparent when the tomentum wears away. Leaves 

 often fascicled ; the rhachis with the short petiole only 2i or 3 lines long. Leaflets 

 usually 7, barely a line and a half long, densely tomentose-silky both sides, not per- 

 ceptibly glandular. Spike terminal, sessile or short-peduncled, mostly capitate, less 

 than an inch long, thick. Flowers about 3 lines long. Stamens 10. — This may be 

 placed next to D. mollis in the arrangement of the North American species given in 

 PL Wright. 2. p. 41. 



Dalea Emouyi (sp. nov.) : fruticosa, ramosissima, pube brevi mollissima cano-tomen- 

 tosa, glandulis parvis punctata ; foliolis 1 - 3-jugis anguste oblongis cum impai-i 

 duplo longiore lineari ; spicis brevibus densis plurifloris ; calycis villosi dentibus subu- 

 latis tubo brevioribus ; " corolla purpurea." — On the desert table-lands of the Gila, 

 June, 1852. — This was first gathered by Colonel Emory, to whom the species is ac- 

 cordingly dedicated, and is the second species mentioned by Dr. Torrey, in Emory's 

 Report, p. 139.* Mr. Thurber's specimens are past flowering. It should probably 

 stand near D. scoparia. The orange-colored or reddish glands are nearly concealed by 

 the fine white wool ; on the calyx they are in rows between the ribs. 



Dalea spinosa (sp. nov.) : fruticosa, ramosissima, parce glanduloso-pustulata, pube 

 minuta appressima canescens ; ramulis rigidis intricatis in spinas pungentes abeunti- 

 bus ; foliis simplicissimis sparsis anguste cuneatis vel sublinearibus emarginatis subses- 

 silibus crassiusculis ; floribus secus ramulos ultimos laxe spicato-congestis subpedicellatis 

 patentibus folio sen bractea parva caduca stipatis ; calycis dentibus late ovatis obtusis- 

 simis tubo turbinate 10-costato dimidio brevioribus ; corolla pulchre violacea seu in- 



* The first species there mentioned, and partly described, is the Balea mollis, Benth. Bot. Voy. Sulph., 

 which, however, is not shrubby. 



