788 SCROPHULARIACEAE 



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



I)lant darkening in drying. 46. C. lutforircns' 



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. stilphurea. 

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

 tinctly 3-ribbed. 48. C. wyomingcnsis. 



XI. LUTEAE. 



Plant seldom over 1 dm. high; bracts green or tinged with brownish rose; caly.x 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. Dennitlii. 



Plant 2—4 dm. high; bracts pale yellow. 



Stems villous; leaves lanceolate. 50. C. Intra. 



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



XII. LiNEATAE. 



One species. 51. C. lincala. 



XIII. Fasciculatae. 



Bracts rhombic-obovate or broadly cimeate in outUne, almost pectinately divided. 



52. C. Pecten. 

 Bracts ovate or lanceolate in outline, pirmatifid. 



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



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



XIV. Pallescentes. 



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



Plant 1.5-3 dm. liigh, liirsute 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. Brachyanthae. 



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



Corolla 1.5-2.5 cm. long; stem pubescent. 



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



57. C. puberula. 

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



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. ccrrina. 



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



59. C. brachyanlha. 

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



60. C. flava. 



XVI. Sessiliflorae. 



One species. 61. C. sessiliflora. 



1. C. exilis 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-like; 

 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, yellowish or tinged with pink 

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

 obtuse lobes. C. stricta Rydb., not DC. In swamj^y places, especially in saline 

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



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

 short-villous; leaves of the basal rosette, oblong or obovate, entire, 2-5 cm. long; 

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

 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. 



