FLOWERING PLANTS AND FERNS OF ARIZONA 827 



5. Calyx very asymmetric, cleft much deeper before (opposite the lip of the 

 corolla) than behind (6). 

 6. Bracts, some or all of them (and often the upper stem leaves) deeply 

 cleft, with very narrow lateral lobes; stems puberulent or short- 

 pilose with mostly retrcrse hairs, often glabrate below the inflores- 

 cence (7). 

 7. Upper lip of the calyx 4-toothed, the teeth subulate, very acute; 

 stem leaves mostly entire, if cleft then with not more than 2 

 lateral lobes; galea about equaling the tube of the corolla. 



5. C. LINARIAEFOLIA. 



7. Upper lip of the calyx 2-lobed, the lobes lanceolate or broader, obtuse 



or obtusish, sometimes dentate; stem leaves mostly cleft, often 

 with more than 2 lateral lobes; galea usually considerably longer 



than the tube of the corolla — 6. C. patbiotica. 



6. Bracts and stem leaves all entire; stems villous-hirsute with stiff hairs (8). 



8. Leaves thin, lax, usually spreading or somewhat reflexed, only the 



midrib prominent; corolla well-exserted (longer than the calyx), 



30 to 40 mm. long 7. C. laxa. 



8. Leaves thick, rather rigid, erect or ascending, prominently 3-ribbed; 

 corolla not exserted, slightly shorter than the calyx, about 20 mm. 



long 8. C. CRUENTA. 



5. Calyx more nearly symmetric, not cleft much more deeplv before than 



behind (9). 



9. Stem tomentose-canescent or lanate, the hairs appressed or sub- 



appressed (10). 



10. Leaf blades glabrous or glabrate above, entire; bracts normally all 



entire but occasionally some of them shallowly cleft toward the 



apex with rather broad, erect teeth; stems tomentose-canescent 



or somewhat lanate, with subappressed hairs; calyx teeth rather 



long and narrow, acute 9. C. Integra. 



10. Leaf blades about equally and persistently pubescent on both faces, 



at least some of the upper ones nearly always deeply pinnately 

 cleft, with narrow, divergent lobes; bracts similarly cleft; stems 

 densely, closely, and conspicuously white-lanate, at least when 

 young, sometimes slightly woody toward the base; calyx teeth 



short, broad, obtuse or rounded 10. C. lanata. 



9. Stem puberulent or short-pilose to villous-hirsute, scarcely tomentose 

 or lanate, some of the hairs usually spreading, others shorter and 

 more or less retrorse (11). 



11. Leaves pilose or villous-hirsute, the herbage usually grayish; stems 



noticeably and usually copiously pubescent to the base with 

 both short and long hairs; blades of the stem leaves (some or 

 most of them), pinnatifid, with 1 or more narrow, divergent, 



lateral lobes; bracts similarly cleft 11. C. chromosa. 



11. Leaves nearly glabrous, puberulent, or sparsely short-pilose; blades 

 of the stem leaves normally entire (12). 

 12. Bracts entire or shallowly cleft near the apex; stem leaves all 



entire 12. C. austromontana. 



12. Bracts deeply cleft, with often more than 1 pair of lateral lobes; 

 some of the stem leaves occasionally pinnately cleft (13). 

 13. Leaves lanceolate or oblong-lanceolate; bracts partly or wholly 



bright red ; corolla 25 to 30 mm. long 13. C. confusa. 



13. Leaves linear-lanceolate; bracts normally yellowish to salmon 

 color; corolla usually less than 25 mm. long- _ 14. C. flava 



1. Castilleja minor A. Gray, Bot. Calif. 1: 573. 1876. 



Navajo and Coconino Counties to Cochise, Santa Cruz, and Pima 

 Counties, 4,000 to 7,600 feet, moist soil around springs and along 

 brooks, April to August. New Mexico, Arizona, and northern Mexico. 



Although normally annual, the plant is reported to be sometimes 

 perennial. 



2. Castilleja exilis A. Nels., Biol. Soc. Wash. Proc. 17: 100. 1904. 

 Near Tuba, Coconino County, 5,000 feet {Kearney and PeebU s 



12860) at edge of a marsh, September. Montana to Washington, 

 south to northwestern New Mexico, northern Arizona, and Nevada. 



