FIG WORT FAMILY 215 



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



Corolla 3 cm. long or less. 



Caly.x 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 caude.x. 

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

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



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



Galea about 10 mm. long. 20. C. Twecdyi. 



Plant low, 1-3 dm. liigh; 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. lancifoUa. 



IX. HiSPIDAE. 



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



.30. C. oblusiloba. 

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

 flowers. 

 Corolla about 4 cm. long. 



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



31. C. Suksdortii. 

 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 le.ss 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 liirsute. 



Corolla much exceeding the bracts; galea equalling or exceeding the 



tube. 33. C. ampUfolia. 



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. 

 Bod.v 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. chramosa. 



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



38. C. linearis. 

 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 ie.ss than 2 cm. long. 

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



Stems from a rootstock, sparingly villous. 42. C. (jracillima. 



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



43. C. Bennittii. 

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



Bracts puberulent, dark bro■v\^lish scarlet. 44. C. parvula. 



Bracts viOous, varj-ing from light brownish crimson to greenish yellow. 



45. C. occidentalis. 

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



Plant 0.5-2 dm. liigh, densely villous above. 45. C. occidentalis. 



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



Stems soUtary from a creeping rootstock; corolla usually margined with yellow; 



plant darkening in drying. 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. wyomingensis. 



XI. LUTEAE. 



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

 short obtuse lobes. 

 Stem less than 2 dm. lugh. 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. liigh: bracts pale yellow. 



Stems villous: leaves lanceolate. 50. C. luiea. 



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



XII. LlNE.^TAE. 



One species. 51. C. lineala. 



