m 



V. 



PLANT^ WRIGHTIANiE. 



95 



S. Kadula, Nutt. var. rotundifolta. S. rotundifolia, DC.! Prodr. 5. p. 839. 



^ S. scaberrima, Torr. 8r Gray, Fl 2,p. 221. Near Austiii, Texas. (Near NcwBraun- 



fels, Lindheimer, 1850.) — By numerous intermcdiate statcs this is plainly connccted 



with S. Kadula. Probably what I referred to S. dcccmflora, in Pl. Lindh. 2. p. 222, 



likewise belongs here. - 



283. LiNOSYRis HETEROPHYLLA (sp. nov.) : sufFruticosa, glabra ; caulibus simplici- 

 bus vel apice fastigiato-corymbosis ; foliis anguste linearibus mucronatis uninci 



rvns 



superioribus integerrimis, inferioribus parce laciniato-dentatis ; capitulis phn-imis 

 confertim fasciculato-corymbosis 12-floris; involucro subcylindraceo floribus dimidio 



breviore, squamis glabellis ecarinatis 



lineari-oblongis 



obtusis apice ciliolatis. 



f 



Valley of the Pecos ; Aug. — Stems a foot high, very lcafy, as well as the slender 

 and somewhat angled branches. Leaves thickish, punctate, tapering to thebase; 

 the lower, two or three inches long and one or two lines widoj usually beset with 

 one or two sharp and salient teeth or Igbes on each side; the upper, an inch long 

 and half a line wide, obscurely one-nerved. Heads more or less peduncled, crowdcd, 

 four lines long. Involucre cylindraceous-campanulate; the scales about 15, slightly 

 glutinous-glandular, as are the flowering branches and peduncles, rather concave, ap- 



pressed, with a very narrow scarious margin, which is fimbriate-ciliate at the obtuse 

 apex, the exterior successively shorter, their tips obscurely greenish. Appcndages 

 of the. style triangular-lanceolate, acutish. Alveoli of the rcccptacle laceratc- 

 toothed. Achenia short, turbinate but compressed, silky-canescent. — The allied 

 L. pluriflora, of which I have only some capituli, has a more campanulate 15 - 

 flowered involucre, with lanceolate, moderately acute scales. 



18- 



-r 



28i. L. Wrightii (sp. nov.) : suffruticosa, glabra ; caulibus simplicibus ; foliis 

 oblanceolatis mucronato-acuminatis uninerviis integerrimis marginibus hirtello- 

 scabris; capitulis plurimis in corymbum compositum fasciculato-confertis 9-10- 

 floris ; involucro campanulato floribus subdimidio breviore, squamis ovato-oblongis 

 obtusissimis subcarinatis glabris marginibus subciliatis. — Valley of the Eio Grande, 

 60 or 70 miles below EI Paso ; Sept. — Stems a foot or more in height from a 

 woody base. Leaves dull green, a little scabrous, thickish, all tapcring to the base ; 

 the lower, two inches long and neaiiy three lines wide above thc middle ; the upper, 

 similar but smaller. Heads crowded, three lincs long. Scales of the involucre all 



appressed, 



obscurely greenish 



at the tips. Appendages of the styie triangular- 



lanceolate, acute. Achenia short, silky-canescent. 



Allied to L. lanceolata, but not 



puberulent, the leaves only one-nerved, the involucre shorter, &c. Both, with the 

 preceding and L. hirtella, are strict congeners 



285. L. iiiRTELLA (sp. nov.) : cinereo-hispidula ; caulibus e basi sufli-uticosa sim- 

 plicibus virgatis; foliis spathulato-linearibus mucronato-apiculatis uninerviis inte- 

 gerrimis vel inferioribus dentibus 1-3 instructis; capitulisin corymbum simplicem 

 confertis 14-floris ; involucfo campanulato floribus subdimidio breviore, squamis ob- 



j^ 



longis obtusiusculis fere ecarinatis glabris. — Vallcy of the Limpia, « growmg m 

 dense bunches " ; Aug. — Stems slender, 12 to 18 inches high, clothed, as are the 

 leaves, with a short cinereous-hispid pubescence. Leaves about an inch long, and 

 the larger a line wide towards tlie apex. Ileads rathcr crowdcd in a small and 



i 



k 



