788 SCROPHULARIACEAE 



stems solitary from a creeping rootstock; corolla usually margined with yellow; 



plant darkening in drjang. 46. C. luteovirens. 



Stems growing in clumps, with a short caudex; plant rarely darkening in dry- 

 ing. 

 Upper leaves broadly lanceolate or ovate; all leaves 3-ribbed. 



47. C. sulphurea. 



Leaves all linear, 1-ribbed, or the uppermost linear-lanceolate and indis- 

 tinctly 3-ribbed. 48. C. wyomingensts. 



XI. Ltjteae. 



Plant seldom over 1 dm. high; bracts green or tinged with brownish rose; calyx with 



short obtuse lobes. 

 Stem less than 2 dm. high, sparingly villous; bracts tinged with brown. 



49. C. pulchella, . 



Stem 2-3 dm. high, hirsutulous; bracts tinged with rose. 43. C. Bennittii. 

 Plant 2-4 dm, high; bracts pale yellow. 



Stems villous; leaves lanceolate. 50. C lutea. _ 



Stems pilose; leaves linear or lance-linear. 41. C. Cusickii. 



XII. LINEATAE. 



One species. 51. C. lineata. 



XIII. Fasciculatae. 



Bracts rhombic-obovate or broadly cuneate in outline, almost pectinately divided. 



52. C. Feclen. 



Bracts ovate or lanceolate in outline, pinnatifid. 



Upper leaves and bracts, only 3-fld at or above the middle. 48. C. wyomtngensis. 

 Leaves and bracts deeply divided into linear divisions. 53. C. fasciculata. 



XIV. PAT.LESCENTES. 



Plant low, less than 2 dm. high, finely puberulent. 54. C. paUrscens, 



Plant 1.5-3 dm. high, hirsute or villous as well as puberulent. 



Lateral divisions of the calyx deeply cleft into two subulate lobes; corolla 12-15 mm. 



long. 55. C. longispica. 



Lateral divisions of the calyx merely 2-toothed. 



Lower lip two-thirds as long as the galea; corolla about 2.5 cm. long. 



50. C. lutea. 



Lower lip almost equalling the galea; corolla about 2 cm. long. 



56. C. pilifera. 



XV. Brachyaxthae, 



Corolla 2-3 cm. long; stem glabrous or nearly so. 6. C. cognata. 



Corolla 1.5-2.5 cm. long; stem pubescent. , 



Lower lip of the corolla fully half as long as the galea; plant less than 1 dm. lugn. 



57. C puberula. 



Lower lip one-fifth to one-third as long as the galea; plant 3-4 dm. high. 



Lower lip about one-third as long as the galea, its lobes lanceolate, acuminate. 

 Stem 5-6 dm. high, finely puberulent; bracts minutely puberulent. 



58. C. certina. 



Stem 2-4 dm. high, more or less hirsute-villous ; bracts shortly villous-lnrsute. 



59. C brachyaniha. 



Lower lip one-fifth to one-fourth as long as the galea, its lobes ovate, acute. 



60. C. ftava, 



XVI. Sessiltflorae. 



One species, 61. C. sessiliflora. 



1. C. ezilia A. Nels. Stem strict, 3-8 dm. high, 'more or less glandular- 

 hirsute or villous; leaves linear-lanceolate or lanceolate, long- attenuate, 3~10 cm. 

 long, 3-nerved, more or less glandular-hirsute; inflorescence long, spike-uke, 

 bracts linear-lanceolate, attenuate, only the uppermost tipped with scarlet or 

 crimson; calyx more deeply cleft above than below, about equalling the corolla, 

 lobes linear-lanceolate; corolla about 2 cm. long, yellow^ish or tinged with pink 

 on the margins; galea about 7 mm. long, obtuse; lip less than 2 mm., 3-cleft, with 

 obtuse lobes. C. sirida Rydb., not DC. In swampy places, especially in salme 

 soil: Wash.— Nev. — Colo. — Mont. Plain — Mont, Jl-Au. 



2. C. coccinea (L.) Sprang. Stem usually simple, 3-6 dm. high, more or less 

 short-villous; leaves of the basal rosette, oblong or obovate, entire, 2-5 cm. 1^".^' 

 stem-leaves 3-8 cm. long, with 3-7 linear, obtuse divisions; bracts 3-5-cIett, 

 tipped with crimson; lateral lobes usually lanceolate, acute, or obtuse, the middle 

 one broadly oblong, rounded at the apex; calyx 1.5-2 cm. long, almost equally 

 deeply cleft above and below, into two oblong, truncate or retuse divisions; 

 corolla greenish yellow, about 2 cm. long; galea about 8 mm. long, rounded at 

 the apex; lower lip about 3 mm. long. Meadows and thickets: Me. — N.C 

 Tex.— Sask. Plain. My-Jl. 



