822 SCROPHULARIACEAE 



Bracts and sepals distally pale yellow; galea dorsally glabrescent to glabrous; leaves lanceolate; stem, 



and leaves proximally. finely villose. 16. C. chrysantha. 



Bracts and sepals distally purple to whitish; galea dorsally puberulent to pubescent with gland-tipped 

 hairs. ... 



Leaves and bracts relatively wide, grayish-villose, the former lanceolate; flowers little exceeding the 



foliose bracts; stems diffusely ascending. 17. C. Ownbeyana. 



Leaves and bracts narrow, finely villose, the former linear-lanceolate; flowers much exceeding the 

 short bracts; stems erect from a decumbent base. 

 Lobes of lower corolla-lip purple to white, distinct 1.5-2.5 mm.; galea finely pubescent with 

 gland-tipped hairs; corolla 20 mm. long, exceeding the calyx, even the ample dark 

 green pouch of the lower lip exserted; stems many in a clump. 18. C. Lemmonix. 

 Lobes of lower corolla-lip scarcely developed, green, the pouch dark purplish green; galea 

 glandular-puberulent to glabrescent; corolla smaller, more tardily exserted from the 

 ampler calyx; stems few or solitary. 19. C. Culbertsonn. 



VI. Glanduliferae. 



Calyx-lobes broadly rounded; leaves oblong-lanceolate, one-fifth to one-third as wide as long, distally with 1 to 3 

 pairs of short lobes. 

 Bracts distally yellow, the lower 2.5-3 cm. long, both bracts and leaves distally with 2 or 3 pairs of slender 

 acute or acutish lobes; corolla 18-20 mm. long; stigma 1-1.3 mm. wide; plant 2.5-3.5 dm. tall, 

 obscurely glandular. 20. C. levtsecta. 



Bracts distally scarlet-red, the lower 1-1.5 cm. long, both bracts and leaves distally with 1 or 2 pairs 

 of obtuse or rounded lobes; corolla 15-16 mm. long; stigma 0.2-0.3 ram. wide; plant 1-1 .5 dm. tall, 

 more evidently glandular. 21. C. brevxlobata. 



Calyx-lobes acute to obtuse; leaves usually narrower in proportion to length. 



Inner bracts broadly rounded; leaves and outer bracts entire; corolla 20 mm. long. 22. C. Elmeri. 

 Inner bracts less widely rounded, usually acute or truncate; leaves and bracts with slender acute to attenuate 

 lobes. 

 Bracts dull yellow or reddish; galea dorsally glandular-puberulent, the hairs mostly or all gland-tipped. 

 Lower corolla-lip one-third length of galea; leaves 1.5-2.5 cm. long. 



Stem and leaves finely glandular-pubescent, the hairs on the lower part of the stem somewhat 



longer; galea stout, decurved. 23. C . chlorotxca. 



Stem and leaves hirsute with glandless hairs as well as pubescent with shorter gland-tipped 

 ones; galea slender, nearly straight. 24. C . xanthotrxcha. 



Lower corolla-lip one-sixth to one-fourth length of the slender galea; leaves 1.5-5 cm. lonp; stem 

 and leaves glandular-pubescent, or the stem often hirsute below. 25. C. glanduhfera. 



Bracts bright red; lower corolla-lip one-fifth to one-third the length of galea. 



Galea dorsally glandular-puberulent, relatively slender; leaves lanceolate, acute; plant 3-4 dm. tall, 



hirsute, with glandless and also with shorter gland-tipped hairs. 26. C. Wherryana. 



Galea dorsally with glandless or nearly glandless hairs, relatively stout; leaves oblong-lanceolate 

 and obtuse to mostly lance-attcnuate; plant 1-2 dm. tall, with similar or with less differen- 

 tiated indumentum. 27. C. Brewert. 



VII. Septentrionales. 



Bracts yellow or yellowish, at least the mid-blade rounded at apex; usually only the distal part of the galea 

 exceeding the subtending bracts; inflorescence villose with yellow hairs. 

 Inflorescence dense, becoming 5-10 cm. long; leaves linear-lanceolate to lanceolate; stem and leaves densely 



pubescent, the former stout, 3-5 dm. tall. 28. C. lutescens. 



Inflorescence slender, usually shorter or more open; leaves linear-lanceolate, often narrowly so; stem and 

 leaves finely pubescent to glabrous, the former slender, 2-4 dm. tall. 29. C. septentrtonalts. 



Bracts pale or whitish, the mid-blade attenuate to narrowly rounded; both lips of corolla usually exserted beyond 

 calyx and subtending bract; inflorescence villose-pubescent with white hairs. 30. C. rusttca. 



VIII. Fraternae. 



Corolla 12-15 mm. long, its lower lip somewhat hidden by the calyx; stem erect or somewhat decumbent at base, 

 1-2 dm. tall. 

 Stem and leaves hirsute-pubescent; bracts scarlet, not exceeded by the thick blunt corolla-galeas. 



31. C taedtfera. 



Stem and leaves glabrous to minutely pubescent; bracts purple, exceeded by the slenderly attenuate corolla- 

 galeas. •'2. C. wallowensts. 

 Corolla 23-33 mm. long, its lower as well as upper lip usually exserted from the calyx; bracts red; stem diffuse, 

 usually about 1 dm. tall, loosely hirsute. 33. C. fraterna. 



IX. SUKSDORFIANAE. 

 Only species. 34. C. Suksdorfiu 



X. Latifoliae. 



Hairs of leaves and stems simple; calyx-lobes rounded to abruptly acuminate; corollas exceeding the colored 



bracts. 



Leaves oblong to orbicular, rounded, less than thrice as long as wide; bracts and calyces scarlet-red to 



scarlet, distad to the yellow crossband; plant hirsute or villose-hirsute with glandless hairs, difiusely 



spreading. 



Bracts all 3-lobed, the mid-lobe rounded and the lateral ones diverging about 45°; corolla 29-32 mm. 



long, its lower lip often spreading and the stout galea projecting 7-12 mm. beyond the calyx; 



plant villose-hirsute. the leaves mostly 1.3-2.5 cm. long and the depressed stems slightly woody. 



35. C. mendoctnensts. 



Bracts not (or scarcely) lobed, truncately rounded; corolla 24-27 mm. long, its lower lip apprcssed 

 and the relatively slender galea projecting 4-5 (-10) mm. beyond the calyx; plant more 

 stiffly hirsute, the leaves mostly 1-2 cm. long and the diffuse or erect stems thicker and quite 

 woody. 36. C. tatifoha. 



Leaves oblong-lanceolate, at least thrice as long as wide; bracts and calyces yellow or red, the bracts all 

 deeply trifid; plant slightly to moderately pubescent or hirsute-pubescent, ascending to erect. 

 Herbage, below the inflorescence, not glandular; plant loosely hirsute-pubescent to glabrous; bracts 

 scarlet. 

 Calyx-tube not inflated, light yellowish green, cleft laterally much less than medianly; leaves thick, 

 oblong-lanceolate to widely oblong, finely (or rarely coarsely) pubescent to glabrous, those 

 of the axillary shoots little or not developed. ^T ■ C. htorahs. 



