*■> 



VI. 



PLANT^ wrightian,t;. 



87 



papillosis, disci prismaticis areola acute quadrata. — Hill-sidcs, betwccn ■Rarboco- 

 mori and Santa Cruz, Sonora ; Sept. (1218.)— Stem 12 to *18 inches high, very 

 slender, branched. Leaves barely an inch long, 3 to 5 lines wide at the base, which 

 is abruptly contracted into a petiole of 3 or 4 lines in len^nh 



mostlv obtuse and 



ged and hollow. Invol 



base. Peduncles 4 to 6 inches long ; the 



Ligules deep yell 



half an inch in length, three-toothed at the broad apex. Achenia of the disk 



persistent 



th the angles sharp. Ligules 



Lepachys columnaris, var. Tagetes, Gray, Pl Wright. p. 106. Banks of the 

 San Pedro, Western Texas; May, (1219.) 



Heliomeris multiflora, Nutt ; Graj/, Pl. Fendl p. 84, %- Pl. Wright. p. 107. 

 Sides of mountains at the copper mines, New Mexico, and near the San Pedro, So- 

 nora ; Sept., Oct. : a narrow-Ieaved form, like Wrighfs No. 334. (1220.) AIso 



pme hills between the copper mines and the Mimbres ; Oct 



*_* 



leaved form, like Wrighfs No. 328. (1221,) —The latter, like the for 

 annual root. The larger leaves are 4 inches long and 6 or 8 lines wide. 



H 



Low, damp soil, near Santa Cruz and San Ber 



young 2:)lants very 



nardino, Sonora ; Sept. (1222.) — The leaves are linear or nar 



late, and, like the stems and peduncles, either sparsely, or in 



densely, setose-hispid. Some specimens are canescently hispid : others exhibit 



gradations to the ordinary forms ; else I should certainly have characterized the 



plant as a new spccies. A cultivated specimen shows that the leavcs are 



thickishj canaliculate above, and with the large and strong midrib very prominent 



underneath. 



TL TENUiFOLiA, Gvai/^ L €. Rocky hills of the San Pedro, Western Texas; May. 



Near Eagle Springs ; June. (1223.) 



SiMSiA EXARisTATA (sp. nov.) : annua ; caulc erecto superne pedunculis petiolis- 



que pilis patentissimis hispido-villosis ; foliis ovatis seu oblongo-ovatis acuminatis 



subserratis hirsutulis longe pet 



capitulis corymboso-pani 



o 



culatis ; squamis involucri lanceolatis, exterioribus parce hispidis paullo breviori- 

 bus ; ligulis 4-7 parvis discum haud superantibus ; acheniis glaberrimis omnino 

 calvis vel obsoletissime biaristellatis. — S. lagasc?eformis, Grai/, Pl. Wright no. 

 331, pro parte. — Valley of a tributary of the San Pedro, Sonora ; Sept. (li^ 

 Stem mostly slendcr and rather simple, one to two feet high. Leavcs all 

 divided and almost entire, 2 to 4 inches long, on petioles of 1 - 2 inches in ler 

 whicli are not at all auriculate or dilated at the base. Heads 5 or 6 inches in 



th : the rays very small and inconspicuous, yellow, as are the disk-flowcrs. 

 PalefE of the rcceptacle mostly scarious, pointcd. The |chenia are like those of S. 

 subaristata, Gray, Pl. Fendl, but more rarely showiug any trace whatcver of pap- 

 pus. That species is canescently strigose, with deeply lobed leaves, the petioles 

 auriculate at the base, the heads larger and solitary, and tlie exterior scales of the 

 involucre as long as the inner, the ligules exserted, &c. I cannot now refer to 

 these specimens of Wrighfs former collection, distributed under No. 331, which 



t=> 



ijfa 



