FIGWORT FAMILY 787 



Stem glabrous or puberulent; leaves finely puberulent. 



18. C. humilis. 

 Bracts brownish or yellowish. 19. C. brunnescens. 



VII. LUTESCENTES. 



Leaves linear; corolla 2-3 cm. long. 



Stem 2-3 dm. high; corolla scarcely longer than the calyx. 20. C. dubia. 

 Stem 3-5 dm. high; corolla decidedly longer than the calyx. 



Calyx-lobes obtuse. 21. C. desertorum. 



Calyx-lobes acute or acuminate. 22. C. lutescens. 



Leaves lanceolate; corolla nearly 4 cm. long; calyx-lobes acute. 23. C. variabilis. 



VIII. LANCIFOLIAE. 



Corolla 3.5-4 cm. long; galea 1.5-2 cm. long; leaves lanceolate. 



Bracts brick-red or yellowish; leaves usually more or less pubescent. 



23. C. variabilis. 



Bracts crimson; leaves glabrous or nearly so. 24. C. Vreelandii. 



Corolla 3 cm. long or less. 



Calyx and upper part of the stem densely white-villous. 25. C. trinervis. 

 Calyx and upper part of the stem sparingly hirsute-villous. 



Plants growing more or less in clumps, with a short caudex. 

 Corolla 2-3 cm. long; bracts usually more or less crimson. 

 Plant tall, 4-6 cm. high; calyx-lobes acute or acuminate. 



Galea 15-18 mm. long. 13. C. confusa. 



Galea about 10 mm. long. 26. C. TweedyL 



Plant low, 1-3 dm. high; calyx-lobes obtuse. 27. C. subpurpurascens. 



Corolla less than 2 cm. long; bracts brick-red. 28. C. mineata. 



Plants with solitary stems from horizontal or ascending rootstocks. 



29. C. lancifolia. 



IX. HlSPIDAE. 



Calyx-lobes rounded at the apex; bracts purplish, much exceeding the flowers. 



30. C. obtusiloba. 

 Calyx-lobes acute or rarely obtuse at the apex ; bracts if at all only slightly exceeding the 



flowers. 

 Corolla about 4 cm. long. 



Plant simple, with a horizontal rootstock; galea longer than the corolla-tube. 



31. C. Suksdorfii. 

 Plant cespitose, with a short caudex; galea not longer than the corolla-tube. 



13. C. confusa. 



Corolla 1.5-3 cm. long; plant more or less cespitose, with a short caudex. 

 Stem more or less pubescent, 3-6 dm. high. 



Lobes of the calyces and bracts lanceolate or oblong; bracts usually crimson. 

 Body of the leaves lanceolate; lobes directed forward. 



Plant decidedly glandular- or viscid-pubescent. 32. C. viscida. 

 Plant scarcely viscid, but puberulent and hirsute. 



Corolla much exceeding the bracts; galea equalling or exceeding the 



tube. 33. C. amplifolia. 



Corolla slightly if at all exceeding the bracts ; galea shorter than the 



tube. 

 Bracts with very short lobes or merely toothed; stem sparingly 



hirsute or merely puberulent. 34. C. Bradburyi. 



Bracts with long narrow lobes; stem copiously hirsute. 



35. C. hispida. 

 Body of the leaves linear, the lobes linear, divergent. 



Galea shorter than the corolla-tube. 36. C. angustifolia. 



Galea longer than the corolla-tube. 37. C. chromosa. 



Lobes of the calyces and bracts narrowly linear; bracts brick-red. 



38. C. linear is. 

 Stem glabrous up to the inflorescence, 1-2 dm. high. 39. C. Haydeni. 



X. PALLIDAE. 



Upper leaves long-acuminate, caudate-falcate. 



Stem up to the inflorescence and leaves puberulent or glabrate. 



40. C. pallida. 



Stem and leaves pilose. 41. C. Cusickii. 



Upper leaves neither caudate, nor falcate. 



Bracts not pale-yellow; corolla usually less than 2 cm. long. 

 Stem slender, 2-4 dm. high; bracts rose or brownish. 



Stems from a rootstock, sparingly villous. 42. C. gracilhma. 



Stems from a caudex, hirsutulous, or villous in the inflorescence. 



43. C. Bennittii. 

 Stem 0.5-2 dm. high, fiom a cespitose caudex. 



Bracts puberulent, dark brownish scarlet. 44. C. parrula. 



Bracts villous, varying from light brownish crimson to greenish yellow. 



45. C. occidentalis . 

 Bracts pale yellow; corolla usually over 2 cm. long, except in the first. 



Plant 0.5-2 dm. high, densely villous above. 45. C. occidentahs. 



Plant 2-4 dm. high, slightly if at all villous in the inflorescence. 



