VI. PLANTJ2 WUIGHTIAN^. 89 



V. LAx\, DC; Grmj, PL Wrifjht. p. 108. V. Tcxana, Ton: S^- Gray, Fl. 2. p. 

 318. In thickets, valley of the Coppermine Creek, New Mexico; Oct. (1227.) — 

 The large and thin-leaved form of the species. It belongs to De Candolle's first 

 section of the genus, the receptacle, at first convex, becoming truly conical (as well 

 in Berlandier's as in other specimens), as is also noticed by Schaucr, in Linncea, 19. 

 p. 728. The rays are from 5 to 10 in number. 



V. LAXA, DC, fere var. brevipes, Gray, PL Wright. L c. In a ravine, at Santa 

 Cruz, Sonora; Sept. (1228.) — Leaves either opposite or alternate. 



Flourensia cernua, DC. Prodr. b. p. 593; Gray, PL Wright, p. 114. Valley of 

 the Pecos, on stony hills ; May. Hills between the Mimbrcs and the Rio Grande ; 

 Nov. (1229.) 



Helianthus lenticularis, Doiir/L in Bof. Reg. t. 12G5 ; Gray, PL FendL p. 83. 

 Valley of Coppermine Creek, New Mexico; Aug. and Oct. (1230.) 



H. PETioLARis, Nutt. ; Torr. 8f Gray, L c. Valley of Coppermine Creek ; Oct. : 

 two forms. (1231.) 



H. PETIOLARIS, var. CANESCEXS, Gray, PL Wright, p. 108. Valley of the Rio 

 Grande, New Mexico; July. (1232.) — The same as No. 335. — There are also 

 specimens of a more silvery-cancscent plant, with the lower leaves broadly deltoid- 

 ovate, as long as their petioles ; from the Rio Grande, 40 or 50 miles below El 

 Paso, mentioned in PL Wright, under No. 335, which I know not what to do with, 

 except to refer them provisionally to the same species. (1232".) 



H. ciLiARis, DC. Prodr. 5. p. 587 ; Gray, PL Wright, j}. 108. Prairies of Tur- 

 key Creek, Western Texas ; May. (1233.) 



H. GROSSE-SERRATUS, Marteiis, var. y. Gray, PL Wright. L c. Valley of the Mim- 

 bres, New Mexico ; Oct. (Two specimens only.) 



AcTiNOMERis LONGiFOLiA (sp. uov.) : caule glaberrimo tereti exalato ; foliis ple- 

 rumque alternis (nunc oppositis nunc ternis) subsessilibus lineari-lanceolatis elon- 

 gatis denticulatis reticulatis utrinque hispidulo-scabris ; pedunculis corjmbosis 

 scabris monocephalis ; involucro biseriali, squamis exterioribus linearibus patulis 

 disco convexo longioribus ligulas suba?quantibus, interioribus paleis receptaculi re- 

 ferentibus; acheniis ovalibus alatis calvis vel paucis uniaristatis. — Mountains cast 

 of Santa Cruz, Sonora; Sept. (1234.)— Stem 2 feet high, from a perennial root, 

 leafy to the top. Leaves 6 or 7 inches long and 4 to 6 lines wide, a few of them 

 opposite or verticillate in threes, thickish, rough, especially above, acute. Peduncles 

 in a simple corymb, or sometimes solitary. Heads in fruit depressed-globose, ilnd 

 8 or 9 lines in diameter. Palete of the receptacle lanceolate, rather obtuse. Ache- 

 nia almost 3 lines long, smooth, surrounded by a thickish and rather narrow wing, 

 the outer side of which is sometimes more extended at the emarginatc summit. 

 Pappus none, or with minute rudiments of the two awns, or occasionally with one 

 short and naked awn. 



A. Wrightii, Gray, PL FendL p. 85. Margin of mountain torrents, between the 

 copper mines and Conde's Camp, New Mexico ; Aug. (1235.) 



Coreopsis cardaminefolia, Torr. Sf Gray, FL 2. p. 346. Old bed of the Rio 

 Grande, 50 miles below El Paso ; June. (1236.) 



