V. 



PLANT.E WRIGimAN-^. 



47 



more in heiglit. Leaflets lialf au incli long, obtuse» bcset imdcrneatli, close to the 

 repand or siibcrenulate margins, with a row of very large and flat glands, and oftcn 

 with a few others near the midrib, petiolulato. 



127. *D. MOLLis, Be?ifh. Pl Hartio. p. 306; var.? Neo-Mexicana : humilis, pube 

 sericeo-villosa canescens ; caulibus e radicc porenni diffusis herbaceis parce glandu- 

 losis ; foliolis 7-11 obovatis cuncatisve subretusis grossc glandulosis ; spicis oblongis 

 densifloris ; rhachi squarrosa ; bracteis lanceolatis subulato-acuminatis calycibusque 

 sericeo-villosissimis, dcntibus e basi lata aristatis tubum ct coroUam subsuperan- 

 tibus; carina purpurea petaKs vix longiorc; legumine sericeo. — llills bcyond the 

 Pecos and the Pass of the Limpia; Aug. — Stcms much branched aiid diffuse, a 

 span high, often decumbent, leafy, clothed lilic both surfaces of the Icaves with a 

 short and soft villous-silky cincrcous pubcsccnce. Lcaflcts an cighth of an inch 

 long, approximate, petiolulate. Spikes on short pedunclcs, half an inch or more 

 in length, thick and dense, very woolly with the silky-viilous calyces. These and 

 the rest of the flowers are much as in D. lachnostachys, except that they arc only 

 half the size or less, and the silky-villous covering is shorter in proportion and Icss 

 abundant. Mr. Wright notes that the flowers are ycUow, at Icast in one set of 



specimens ; but the carina in the specimcns is tingcd with pur^ilc. — Coulter's Cali- 

 fornian plant, to which I have joined the above, is smaller in all its parts, but, as thc 

 whole structure is essentially the same, I think it may be no more than a starved 

 state of the same species. With more hesitation, on account of the larger size of 

 all the parts, I am constrained to append to it No. 126 also. 



12G. D. MOLLis, var. "? villosior, minus canescens; foliolis spicisque majoribus; 

 calycibus magis plumosis. — On a mound near the San Felipe; July. "Flowers 

 purple." — The larger leaflets are a quarter of an inch long, and the spikes over 

 half an inch in diameter, with perhaps a more copious villous-silky down ; I notice 

 no further diflerence between it and No. 127. 



128. D. LANATA, Spreng. Sj/st 3. ^^. 327; Grai/, Pl. Fendl p. 31. D. lanuginosa, 

 Nutt. Bottoms of the Bio Grande, New Mexico, QQ miles below El Paso ; Sept. 



129. D. ALorEcuRoiDES, Willd. ; DC. Prodr, 2. p. 244; Grflj/, Pl. Fendl. p. 3L 

 Valley of the Rio Grande, near Presidio de San Elisario, Ncw Mexico ; Sept. 



130. D. scoPARiA, Gray., Pl. Fendl. p. 32. Sandy bottom of the Pio Grande be- 

 low EI Paso ; Sept. — The excessively branched stems of this remarkable species 

 are woody at the base. The lower leaves are trifoliolate, with linear leaflets, the 

 lateral ones shorter than the tenninal ; the uppermost are all unifoliolate as in the 



specimens of Wislizenus. 



131. D. ARGYR^A (sp. nov,): fruticosa, erecta; ramis canescentibus glanduloso-tu- 

 berculatis foliosis ; foliolis 7-13 obovato-oblongis argenteo-sericeis supra nitentibus 

 subtus glandulis nigris punctatis ; spicis brevibus densifloris ; bracteis cx ovato acu- 

 minatis calycibusque subaequilongis cinereo-pubescentibus ; dentibus calycis subulatis 

 tubo unguibusque petalorum brevioribus ; vexillo flavo alis carinaque purpureis sub- 

 duplo brevioribus ; legumine cum stylo hirsuto. — High hills near the San Pedro 

 Biver, abundant; July. (San Antonio de las Alanzanes, Mexico, Grey^, No. 357. 

 Southern frontiers of Texas, Dr. Bigelow.) — Stems 1 to 2 feet high, stout, wholly 



-*, 



