﻿118 Greene: New Compositae from New Mexico 



the petioles slender, often nearly as long as the lamina : heads few 

 and nodding in scattered small cymes : short oval and oblong 

 outer bracts of the involucre obtuse, but caudate with a long slender 

 herbaceous tip. 



Organ Mountains, Sept. I (no. 490). I take this to be iden- 

 tical with Brickellia gnvidiflora pctiolaris Gray, but its characters, 

 as above indicated, are numerous. By the texture of its foliage, 

 and the mode of growth, it is wholly distinct from C. grandiflorus. 

 Its sufficiently well marked leaf-outline, and the slender petioles, 

 pointed out by Gray, are of less importance than those characters 

 which he did not detect. It is to be regretted that Mr. Wooton's 

 specimens give no indication of what the lower parts of the plant 

 are like, he having furnished us with only the terminal and flower- 

 ing portion. 



/Q 



OLEOSANTHUS AMBIGEN3. 



Apparently herbaceous, 2° high or more, simple up to the 

 rather strict and thyrsiform panicle of middle-sized heads ; foliage 

 green and seeming glabrous, but sparsely scabrous-puberulent 

 under a lens : lowest leaves opposite, the pairs remote, very thin, 

 deltoid -ovate, 2' or 3' long, acute, coarsely serrate-toothed, the 

 upper and those subtending the branches of the panicle alternate, 

 all with slender and rather long petioles : involucres x /± high, 



strongly imbricated, their bracts from ovate to oblong-linear obtuse 

 and pointless, strongly nerved and tomentose-ciliate : flowers 

 ochrolcucous or cream-colored : achenes short for the genus, with 

 5 prominent angles and as many intervening ribs, not glandular, 

 the angles and ribs scabrous-serrulate. [Plate 330.]. 



White Mountains, August 13 (no. 335). Plant with some- 

 thing of the aspect of C. grandiflorus ; its root-growth not indi- 

 cated ; but very distinct in its short and much imbricated invo- 

 lucre of bracts passing very gradually from short to long, and also 

 in the character of the achenes, which are far more like those of 

 Eupatorium, the alternate angles being reduced to merely acute 

 striae ; they are almost those of E. Fcndlcri, yet in habit the 



plant is wholly ColeosantJuis. 



L ACINI ARIA LANCIFOLIA. 



Stout, 3 high, glabrous : lowest leaves nearly i° long, linear- 

 lanceolate, 1 -nerved, middle cauline more than half as long, broad 

 in proportion and lanceolate, scarcely 3 -nerved, /. c, the lateral 



