■V. plants; wrightian^. 123 



genus to Dr. Henry P. Sartvvell, of Penn Yan, New York, one of my earliest and 

 most valued botanical correspondents, a zealous student and collector of the plants 

 of Western New York, and author of the excellent Carices Americce Septentrionalis 

 Exsiccatce, of which two volumes have already appeared. 



387. Bahia pedata (sp. nov.) : annua, puberula; caule erecto apice nudiusculo 

 corymbosi-oligocephalo ; foliis alternis petiolatis pedatisectis, segmentis obovato- 

 oblongis obtusis brevibus pares insico-dentatis lobatisve, fol. suprem. linearibus sub- 

 integerrimis ; involucro laxo disco breviore, squamis oblongis obtusis ; acheniis 

 parce pilosis ; pappi paleis 10-12 obovato-oblongis obtusis tubo corollfE disci brevi- 

 oribus. — Between W. Texas and El Paso ; the record of the locality lost. — Stems 

 about a foot high. Leaves about an inch long and wide, trisected, with the lateral 

 divisions two-parted or two-cleft, and the middle one 3 - 5-lobed or incised, all the 

 divisions or lobes obtuse ; the upper leaves smaller, with narrower divisions, gradually 

 reduced to mere bracts. Peduncles one or two inches long. Heads about the size 

 of those of B. absinthifolia. No. 379 ; the yellow rays, &c. similar. Involucre almost 

 glabrous ; the scales about 10, membranaceous, lax, two lines long, nearly uniserial. 

 Pappus one third of the length of the achenium, shorter than the glandular proper 

 tube of the disk corolla ; the paleae with an evident midnerve which is thickened at 

 the base. — This is a manifest congener of Bahia ambrosioides and B. absinthifolia, 

 although only minutely pubescent. Before observing the pappus I had taken it for 

 the ambiguous plant which, in Plantce Fendleriance, i). 104, I had called Amauria 1 

 dissecta. Indeed, the latter, although probably a distinct species (having more dis- 

 sected foliage, &c.), is to the former just what Monolopia lanceolata, Nutt. ! PI. 

 Gamb. (= 323, California, Coulter), having discrete scales of the involucre, is to 

 Bahia sect. Eriophyllum ; or what Lasthenia (Hologymne) glabrata is to Lasthenia 

 glaberrima and obtusifolia; what Ba.eria, Fish. Sj- Meyer, is to Burrielia proper; 

 Burrielia (Ptilomeris, Nutt.) calva, to the other species of that section ; Hecubaea, 

 DC, to Helenium; Acarphsea, PL Fendl, to Chsenactis; Sabazia urticsefolia, DC, 

 to Galinsoga parviflora; Oxyura, DC, to Layia (Gray, PL Fendl. p. 103); Coino- 

 gyne. Less., to Jaumea; Villanova, Laff,, to Achyropappus ; * and Thelesperma, 

 sect. Abuceros, p. 109, to the rest of that genus. 



388. Baileya multiradiata, Harv. ^ Gray, PI. FemU. p. 106, adnot. ; Torr. in 

 Emory, Rep. p. 144. t. 6. Mountain valleys between the Limpia and the Rio 

 Grande ; Aug. The scarious persistent rays are very numerous, in several series. 



389. B. PLENiRADiATA, Harv. 8r Gray, I. c. Valley of the Rio Grande, 25 miles 

 below El Paso ; Sept. 



t Varilla Texana (sp. nov.) : suffrutescens, humilis ; foliis plerisque alternis 

 carnosis obtusis ; pedunculis solitariis ramos terminantibus prselongis monocephalis ; 

 capitulo ovoideo ; pappo nuUo. — Saline plains, from the Nueces to the Rio Grande, 



» Amblyopappus, Hook. Sf ^rn., which I had thought was too near Achyropappus, is the same plant as 

 Infantea Chilensis, Remy, in Gay, Fl. Chil , and Aromia tenuifolia. Null. 



Heliogenes, Benlh. ! PL Harlw. p. 42, is certainly the same as Aganippea, DC ! ; even the species 

 appear to be the same. 



