FIGWORT FAMILY 787 



Stem glabroiis or puberulent; leaves flnely 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 calv.x. 20. C. dubia. 

 Stem 3-5 dm. liigh; 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. Laxcifoll^e. 



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 neariy so. 24. C. Vreelandii 



Corolla 3 cm. long or less. 



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

 Calyx and upper part of the stem sparingly liirsute-\-illous. 



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. Tueedyi 



Plant low, 1-3 dm. high; caly.x-lob&s obtuse. 27. C. subpurpurascens 



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



Plants with sohtary stems from horizontal or ascending rootstocks. 



29. C. lancifolia. 



IX. HiSPIDAE. 



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

 ^ , , ^ , , 30. C. obtusiloba. 



Calyx-lobes acute or rarely obtuse at the apex; bracts if at all only shghtly exceediag 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. 



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

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



Lobas 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 shghtly if at all exceeding the bracts ; galea shorter than the 

 tube. 

 Bracts with very short lobes or merely toothed; stem sparingly 



liirsute or merely puberulent. 34. C. Bradburyi. 



Bracts with long narrow lobes; stem copiously hirsute. 

 ^ J 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. chromesa. 



Lobes of the calyces and bracts narrowly Linear; 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 less than 2 cm. long. 

 Stem slender, 2-4 dm. liigh; l^racts rose or brownish. 



Stems from a rootstock, sparingly viUous. 42. C. graciUima. 



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. parvula. 



Bracts villous, varjing from Ught brownish crimson to greenish yellow. 



4.5. C. occidcntalis. 

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



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



Plant 2-4 dm. high, shghtly if at all viUous in the inflorescence. 



