314 RHINANTHACEAE. 



12. GERARDIA L. 



i. Gerardia Besseyana Britton. On prairies and river bottoms from Iowa 

 and Wyo. to La. and Colo. Alt. 4000-5000 ft. Boulder; Platte River, Den- 

 ver; Ft. Collins; Longmont; along the Poudre; Longmont; Cherry Creek. 



13. CASTILLEJA Mutis. PAINTED CUP, PAINTER'S BRUSH. 



Annuals or biennials. I- STENANTHAE. 



Perennials. 



Galea several times longer than the very short lip, usually at least 2 /3 as long 

 as the corolla-tube ; bracts in most species tinged with scarlet, crimson 

 or rose. 



Calyx cleft much deeper in front than behind. II. LINARI^FOLIAE. 



Calyx about equally cleft in front and behind. 



Stem villous-canescent ; bracts entire, or trilobed with broad, rounded 



middle lobe. III. INTEGRAE. 



Stem glabrous or pubescent, but not canescent. 



Leaves entire or the uppermost rarely slightly 3-lobed ; corolla-lip very 



short and callous. 

 Bracts usually entire and obtuse, oblong to obovate, if 3-lobed with 



a broad middle lobe. IV. RHEXIFOLIAE. 



Bracts 3-cleft with lanceolate lobes, if entire very acute. 



V. LANCIFOLIAE. 



Leaves, at least the upper, pinnately cleft ; bracts also cleft ; lower corolla- 

 lip not callous, larger. VI. HISPIDAE. 

 Galea less than 3 times as long as the lip, rarely half as long as the corolla- 

 tube ; bracts in most species tinged with yellow or brown. 

 Leaves entire ; bracts also entire or slightly 3-lobed. VII. PALLIDAE. 

 Leaves pinnately divided, at least the upper ones. 



Whole plant white-woolly. VIII. LINEATAE. 



Plant not white-woolly. 



Corolla 1.5-3 cm. long, slightly exceeding the calyx. 



IX. BRACHYANTHAE. 

 Corolla 4-5 cm. long, almost twice as long as the calyx. 



X. SESSILIFLORAE. 



I. STENANTHAE. 

 One species. i- C. exilis. 



II. LlNARI^FOLIAE. 



Bracts crimson or pink. 



Leaves all narrowly linear. 2. C. linariafolia. 



Upper leaves lanceolate. 3- C. Crista-galli. 



Bracts yellow. 4- C. cognata. 



III. INTEGRAE. 

 Leaves entire. 



Bracts oblong. 5- C. Integra. 



Bracts obovate. 6. C. gloriosa. 



Leaves pinnatifid. / C. Lindheimeri, 



IV. RHEXIFOLIAE. 



Upper stem-leaves at least broadly lanceolate or oblong-ovate. 



8. C. rhe.vifolia. 



Leaves all narrowly lanceolate. 



Bracts acute and usually deeply cleft, scarlet or crimson. 9. C. confusa. 

 Bracts rounded at the apex, entire or with a short tooth on each side. 



Bracts brownish or yellowish ; leaves lanceolate, acute, densely puberulent. 



10. C. brunnescens. 



Bracts crimson or rose-color ; leaves linear-lanceolate, acuminate, glabrous 

 or nearly so at maturity. n. C. lauta. 



