484 J. M. Coulter and A. Nelson. 
9. Cuscuta Anthemi A. Nelson, l c. p. 390. — Stems delicately 
slender-filamentous, only 2 or 3 dm long: flowers sessile in capitate, 
few-flowered clusters about 5 mm in diameter: calyx-lobes broadly ovate, 
acute, united below the middle, somewhat imbricated, equaling or at 
first surpassing the corolla: corolla less than 2 mm long; the lobes ovate, 
acute, equaling or longer than the broadly campanulate tube; scales 
oval, fringed around the summit with short processes: filaments about 
as long as the anthers: capsule globose, about 1 mm in diameter: 
stigmas linear, purple, as long as the distinct equal styles; stigma and 
style together 1 mm long: ovules 4, usually but one maturing. — On 
Artemisia gnaphalodes; Wy oming. 
- 10. Pentstemon sepalulus A. Nelson, |. c., p. 449. — Erect, slender, 
and paniculately slender branched above, 3—8 dm. high, very pale and 
glaucous throughout: leaves lanceolate to linear, narrowed toward the 
base, entire: peduncles 1—2-flowered: sepals remarkably small, ovate, 
mucronate: corolla violet-blue, 3—4 cm long, the expanded limb broad: 
anthers as in the preceding; sterile filament glabrous. (P. azureus var. am- 
biguuÿ Gray, Syn. Fi. II: 272, 1886; P. heterophyllus Wats. Bot. King’s 
Exp., 222, 1871.) — In the mountains of northwestern Colorado, in 
adjacent Utah and Wyoming. 
11. Castilleja Buffumii A. Nelson, l. c., p. 459. — Cinereous and barely 
viscid; stems leafy, several to numerous, assurgent from the crowns of 
a woody tap-root which produces from its base many horizontal yellow 
roots: leaves mostly 3-cleft, the lobes nearly linear, about as long as or 
longer than the rather broad base: bracts similar, thinner and sub- 
scarious, light wine-color shading to brick-red or maroon: calyx as long 
‘as the bracts and the corolla-tube, equally cleft above and below; the 
lobes half as Jong as the tube and each cleft halfway into obtuse teeth: 
corolla yellowish-green; galea half as long as the tube, the free thin 
edges the same color as the bract; lip short, one fourth as long as the 
galea and one half as long as the shallow plicae: capsule ovate, 10— 
12 mm long. — Type locality, the Slick Creek Bad Lands, Big Horn 
Basin, Wyoming (B. C. Buffum). 
12. Castilleja dubia A. Nelson, 1. c., p. 460. — The woody caudex 
short, giving rise to few or several slender, simple, ascending or erect 
stems, 2—3 dm high; pubescence sparse, cinerous, consisting of fine 
puberulence and some white, soft hairs: the body or axis of the Jeaf 
linear, 3—5 cm long, 3—5 mm broad, usually with 1 or 2 pairs of 
widely divergent linear lobes which are one third to one half as long 
as the leaf: bracts shorter, the blade and lobes relatively broader and 
tending to become scarious, decidedly yellowish or at the summit bright 
yellow: calyx about 2 cm long, equally cleft to nearly one third its 
length: corolla scarcely longer than the calyx; galea and tube subequal; 
lip almost wanting, not noticeably saccate, truncate and short-toothed. 
(C. angustifolia var, dubia A. Nels., Bull. Torr. Bot. Club. XXIX: 404, 1902.) 
— Denuded slopes of the desert areas; Wyoming. 
