1904 | NELSON: ROCKY MOUNTAIN PLANTS 273. 
late, slightly depressed at summit, glabrous on the sides, densely 
long ciliate-villous on margins and summit, about 4™™ long, as long 
as the corolla; pappus wholly wanting: receptacle flat; the chaffy 
bracts broadly linear, membranous with herbaceous tips and 
midrib which are finely pubescent and viscid-glandular, as are 
also the involucral bracts and to some extent the peduncles. 
Related to Encelia frutescens Gray, but wholly distinct from that as origi- 
nally defined in Bot. Mex. Bound. 89 (Sémsia [Geraea] frutescens). We 
must consider Colonel Emory’s plants from the Gila country as the type 
of that species. The species now defined may be represented in some her- 
baria under the name &. frutescens by specimens from southwestern United 
States. The type is Mr. Goodding’s no. 666, secured at “The Pockets,”’ on the 
Virgin River, in southern Nevada, April 30, 1902. 
’ Helianthella Covillei, n. n.—Z. argophylla Coville, Contrib. U. 
S. Nat. Herb. 4:132; Encelia grandiflora Jones, Proc. Cal. Acad. 
Sei. 11..5:.702. 
While working out the preceding species I naturally looked up all of the 
species of Encelia, Asa result of this study I gained, with much difficulty, 
a conception of some of the species as understood by M. E. Jones. I feel 
satisfied that he is right in asserting the distinctness of the plant described by 
Dr. Coville (7. c.) from the 7ithonia argophylla of Eaton, Bot. King. Exp. 423. 
On the other hand, he does not seem to be right in taking Coville’s plant out 
of Helianthella, and in either genus Jones’ specific name is untenable. I refer 
it back to Helianthella, therefore, naming it for Dr. Coville, who has furnished 
us with a clear and full diagnosis of it. 
“Bebbia aspera (Greene), n. sp.—Stems slender, the woody 
basal portion with gray fibrous bark, the herbaceous stems sub- 
cinerous with scattering abruptly upturned white scabrous often 
deciduous hairs from a papillate base: leaves nearly linear; the 
lower opposite, 2-4°™ long; the upper alternate, small and finally 
reduced to subulate bracts; pubescence similar to that of the 
Stems: heads in an open corymbose panicle, 10-15™™ high, 
canescently pubescent: corollas yellow: style-tips slender-sub- 
ulate, exserted, recurved: receptacle flat, chaffy throughout; the 
bracts linear-lanceolate, scarious, with base inflexed and partly 
enclosing the akene: akene broadly linear-clavate, with an evi- 
dent epigynous disk: pappus of 20-30 plumose bristles as long 
as the corolla. 
