40 



PLANT^ WRIGHTIAN^ 



VI 



/ 



but scarcely tliickcr than tlie petiole, channelled on the upper side ; when three, 

 manifestly digitate ; when iive, the additional pair inserted one or two lines lower 

 down. Peduncles one or two inches long. Spike silky-villous, 2 or 3 lines in 

 diametcr in flower ; in fruit becomini? half an inch long. Calyx a line and a half 



long. 



Lamina of the petals half a line long; vexillum round-cordate ; the wings 



very oblique, nearly the length of the keel. Ovary villous. — Cultivated, from seeds 

 communicated by Mr. Wright, in the Cambridge Botanic Garden, the much- 

 branched stems attain a foot or more in height. 



(1355.) 



D. AVrightii, Gray, Pl Wrightp. 49. Stony hills near El Paso ; May. 



" Flowers yellow, turning purplish." 



D. Jamesii, Torr. S^ Graj/, Fl. 1. p. 308 ; Gray, Pl. Wright, p. 49. Stony hills on 

 the Pecos and the Limpio ; June. (993.) 



D. CALYcosA (sp. nov.) : sufFruticulosa, cinereo-puberula ; caulibus ramosissi- 

 mis decumbentibus ; foliolis 7 - 14-jugis cum impari obovatis ovalibusve retusis 

 juxta incisuram unipunctatis supra glabris subtus nunc glabratis ; spicis breviter 

 pedunculatis oblongis modice densifioris ; floribus post anthesin recurvis ; bracteis 

 lanceolatis calyce brevioribus caducis; dentibus calycis obliqui villosi lato-lanceo- 

 latis tubo duplo longioribus ; petalis albo-purpureis, vexillo reniformi alisque carina 

 dimidio brevioribus. — Hills near the Deserted Rancho, ou the San Pedro, Sonora; 

 Sept. (994.) — Stems a span long, slender, from a suffrutescent base. Stipules 

 subulate. Leaflets 2 or 3 lines long, minutely and often sparsely strigose-pubescent 

 tmderneath. Spikes 1 to 2 inches long, with the flowers contiguous but not com- 

 pact. Calyx campanulate, oblique, 3 lines long, sparsely villous ; the short tube 

 glandular-dotted between the ribs ; the lobes remarkably long and large for the 

 genus, greenish, about the length of the vexillum and oblique wings. 



Keel 

 apparently white marked with rose-purple, the 

 vexillum bright purple. Legume orbicular, flat, apparently 2-valved, one-seeded. 

 Ovules 2.* 



3 lines long) and 



wmgs 



* The species of Dalea described or enumerated in this and the former memoir, and in PlantcR Fend- 

 leriancB and Flantm LindJieimeriarice, are so numerous as to render an artificial conspectus convenient. 

 The species may he disposed as foUows : 



CaJyx profunde quijiquejidus ; lohis lato-lanceolatis suhfoliaceis 



D. CALYCOSA. 



• • 



Calyx villosissimus^ dentibus setaceis vel suhulatis* 



Fruticosaj, glabrse, multijugatae ; spicis paucifloris. 



•*- Herbaceffi, glabrae ; foliis 5-6-jugi3 ; spicis multifloris. 



Perennes. Bractcce cymbseformes, scarioso-marginatse, glaberrimse, persistentes 

 Spica laxiflora, plumosa. Corolla flava. Stamina 9. 

 Spica densiflora» Corolla purpurea. 



Calycis dentes setacei, plumosissimij tubo longiores. 

 Calycis dentes subulatl, villosissimi, tubo breviores. 

 Annui. Bractese villoso-ciliatse, immarginata}. 



Bracteae subpersistentes : spica globosa vel oblonga ; corolla flava, 

 Bracteee persistentes : spica cylindrica: corolla albida. 



h 



Bracteae caduca) : foliola filiformia : corolla purpurea. 



D, FORMosA- yW- 



D. LAXIFLORA. -/^^ 



D. POGONATHERA 

 D. LASIATHERA. 



D. BKACHYSTAC 

 D. POLYGONOir 

 D. FILIFORMIS. 



^ 



a^ 



4 



JM 



