62 PITTONIA. 
CHRYSOTHAMNUS FALCATUS. Shrub large, but not equalling 
the last, the tufts more widely spreading; stem and branches 
and also the lower face of the linear attenuate and somewhat 
falcately recurved leaves almost white with a fine dense pannose 
tomentum ; leaves strictly 1-nerved, glabrous above, and even 
the tomentum of the lower face ultimately deciduous: heads in 
arather large and dense corymbose panicle: bracts of involu- 
cre in 4 series, all with slightly spreading and almost pungently 
acute tips, neither obviously viscid nor ciliate: tube of corolla 
short, pubescent, the throat oblong-clavate, the very short teeth 
connivent rather than erect or spreading. : 
Plains about Grand Junction, southwestern Colorado, 27 Aug. 
1896, collected by the writer. The species has a very character- 
istic corolla; and the pubescence of stem and leaves is also un- — 
like that of any other known species, appearing on the lower a 
face of the leaves as an almost rice-papery removable covering. — 
CHRYSOTHAMNUS CONFINIS. Of about the size and with the 
stoutish habit of C. virens, but stems whitish, the leaves deep- 
green and very narrowly linear, pungently acute, 1-nerved, the 
whole plant more notably resiniferous; bracts of the involu-. 
cre in 4 series, only the exterior ones triangular, the inmost ob- 
long-linear and obtuse, all obviously carinate and, at least toward 
the summit, notably ciliate: tube of the corolla slender, sparsely 
setulose-hairy ; teeth short, erect and obtuse: achenes silky. 
A species of southern New Mexico, the type being Mr. 
Wooton’s n. 379 (of my set), from the White Mountains, Lin- — 
coln Co., 23 Ang., 1897. 
CHRYSOTHAMNUS ORTHOPHYLLUs. Low, only weakly suffru- 
tescent, less than a foot high, the numerous and slender stems — 
crowded, very erect, white-woolly and not in the least viscid: 
leaves 14 inches long, narrowly linear,-acute, white-woolly, very 
straight and suberect: cymes of few heads thyrsoidly arranged > 
bracts of involucre in 3 series, the outer densely cottony through- — 
out, the linear inner ones as much so at tip only, all with, erect 
