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PLANT^ WRIGHTIAN^ 



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Eiigeron gnaphalioides, II.B.K. (Heterochceta 1 gnaphalioides, DC), except that 

 the panicle consists of fewer, longer, and more spreading branches, and there is no 

 trace of the short exterior pappus which is so conspicuous in Kunth's figure. It 



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is manifestly an Erigeron, of the section Caenotus, to which Mr. Bentham, no douht 

 corrcctly, adduces those Amcrican Conyzse of De Candolle with fertile hermaph- 



rodite flowers.* 



Du'LorArrus ERimiDEs, /3. hirtella, Graij, Pl Fendl p. 69. Stony hills near 



El Paso ; April : a stout, vernal form, like Fendler's No. 348. Prairies from Live 



Oak Creek to the Eio Grande and the copper mines, New Mexico. (1171.) 



TowNSENDiA STRiGosA, Nutt. / Grai/, Pl Fendl. p. 70. Sandy hanks of the Rio 

 Grande, above Dona Ana ; July. Stony hills near El Paso ; March, April. (1172.) 

 The plant begins to flower when only an inch high; at length it attains the 

 height of 3 or 4 inches. The root is long and filiform. 



DisTAsis MODESTA, PC. Prodr. 5. p. 279; Grai/, Pl. Wright. p. 91. Eocky prai- 

 ries and hills, from Turkey Creek, Texas, to Providence Creek. (1173.) 



Keerlia bellidifolia, Gray §* En(/elm. Pl. Lindh. 2. p. 220, ^ Pl. Wri(jht. p. 91. 

 Sand-bars of the Nueces ; May. 



AniANosTEPHUS RAMosissiMUs, DC, ; Gray.^ Pl, Wright. p. 93. Prairies of the 



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Sabinal and Nueces, "VVestern Texas; May. (1174.) 



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A. 11UMILIS3 Gray^ PL Wri(/ht h c. Sandy bed of streams, from Eagle Springs to 

 tbe Rio Grande; June. Near El Paso; Marcli-May, (1175.) 



Bellis INTEGRIF0LIA5 Michx. Valley of tbe Pecos to the Prairie-dog towns be- 

 ^ yond the Limpio; Jime. (1176.) 



GuTiERREziA (Hemiachyris) Wrightii (sp. nov.) : radice annua; caule erecto 

 gracili pedali apice coryraboso-paniculato ; ramis monocephalis ; foliis linearibus 

 plauis; capituHs turbinato-hemisphcericis ; ligulis 12; acheniis glabris ; pappo in 

 radio et disco conformi brevissimo coroniformi margine fere integerrimo. — Margin 

 of dried-up streams, between Barbocomori and Santa Cruz, Sonora; Sept. (1177.) 

 Stem somewhat striate-angled, strict, simple, or corymbosely branched at the 

 summit ; each branch or peduncle terminated by a solitary head. Leaves thin, 12 

 to 20 lines long, and a line and a half wide, rather obtuse. Heads pretty large for 

 the genus, nearly the size of those of G. (Brachyris, DC.) paniculata, not half as 

 large as in G. Alamani. Scales of the involucre with short and obtuse green tips, 

 Ligules ncarly 3 lines long. Disk-flowers 20 or more, all fertile. Appendages of 

 the style linear-lanceolate, acute. Pappus strictly coroniform, with the even edge 

 entire or very obscurely denticulate. — An interesting accession to the genus, on 

 account of the annual root and the entire pappus. In the allied G. Alamani, Gra.}/, 

 Pl. Wrii/ht. p. 91, as in other species of the section, it is coroniform, but strongly 

 toothed or lobed. The shape of the appendages of the style, as well as the pres- 

 ence of a pappus, distinguishes this and G. Alamani from Xanthocoma. The fol- 



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Lfennccia, which should rank mei;ely as a subgenus of Erigeron, bctween Cainotus and Stenactis ; differing 



from the formcr in the conspicuous cxterior pappus, from the latter in thc short rays as well as in habit. 



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