RYDBERG: Rocky MOouNTAIN FLORA 131 
This species resembles Chrysothamnus graveolens in habit, but 
the leaves are broader, more tomentulose ; the bracts are slightly 
tomentulose, erose-ciliate, and broader than in that species. Ward’s 
specimens were determined by Dr. Gray as Bigelovia graveolens 
latisquamea and included therein in the Synoptical Flora; but it 
is wholly distinct therefrom. The true C. /atisgquamea (A. Gray) 
Greene has very white filiform-revolute leaves and the bracts more 
rounded at the apex. 
Uran: Strawberry Valley, Sept. 3, 1883, 7. &. Leonard 288 
(type, in herb. N. Y. Bot. Gard.) ; Twelve-mile-Creek, Aug. 29, 
1875, L. F. Ward 659. 
’ Chrysothamnus stenolepis sp. nov. 
Low shrub, 2-3 dm. high, somewhat spinescent ; branches 
short, erect, glabrous or finely puberulent above ; leaves narrowly 
lance-linear, I-2 cm. long, 2-4 mm. wide, glabrous, scabrous- 
ciliate on the margins, convolute and somewhat twisted ; inflores- 
cence corymbiform, of few heads ; involucres about 8 mm. long ; 
bracts 4-ranked in 3 series, narrowly lanceolate, or the inner linear, 
acute, glabrous, keeled, somewhat viscid; corollas scarcely ex- 
ceeding the involucre; lobes lanceolate, 2 mm. long; achenes 
hirsute-strigose. 
This species is related to Chrysothamnus viscidiflorus and C. 
glaucus, but differs from both in the very narrow acute bracts. 
Montana: Pass Creek, near Bridger Pass, 7. Engelmann (type, 
in herb. Columbia Univ.). 
Urau: Saleratus River, Aug. 1889, C. K. Dodge. 
’ Chrysothamnus marianus sp. nov. 
Undershrub, 1-2 dm. high, with a woody thick caudex ; 
branches erect, at first green, soon straw-colored or white, densely 
and finely puberulent ; leaves linear or the lower linear-oblanceo- 
late, acute, thick, densely puberulent, 1-2 cm. long, I-15 mm. 
wide, 1-nerved, somewhat twisted ; heads narrow, in small, corym- 
biform-cymose panicles, involucres about 5 mm. high; bracts 
yellowish, glutinous, erose-ciliate on the margins, 4-ranked and in 
about 3 series, the outer ovate, acutish, the inner spatulate-oblong, 
rounded at the apex ; achenes sparingly strigose ; corollas scarcely 
exceeding the involucres. 
This species has many characters of Chrysothamnus puberulus, 
