PHLOX FAMILY 683 



Corolla 2 cm. or more long; calyx-lobes broadly triangular-lanceolate, obtusish. 



Corolla about 1 cm. long; calyx-lobes lanceolate, acute. 2'. C. linear is' 

 Moral leaves like the stem-leaves, linear; stamens inserted at the same height 

 Calyx-lobes triangular, merely acute. 3. c tenellu 



Calyx-lobes lanceolate, aristate-tipped. 4. C aristella 



Leaves, at least the lower, pinnately divided; divisions again toothed. 



_ 5. C. hcterophylla. 



Perennials with a cespitose rootstock. 6. c. debilis. 



^ 1. C. grandiflora Dougl. Stem at first simple, later on decidedly branched, 

 1.5-7 dm. high, hirsute above; leaves linear-lanceolate, 4-10 cm. long, 5-1") nun. 

 broad, pubemlent, those of the inflorescence ovate and shorter, decidedly vis- 

 cid; flowers in dense head-like leafy spikes ending the stem and its brand n - 

 those of the branches often smaller and with smaller flowers; corolla trumpet - 

 shaped, yellowish, turning reddish, 2-3 cm. long; limb 12-15 mm. broad; lobes 

 oblong. Gilia grandiflora A. Gray. In sandy or gravelly soil: B.C. Mont. 

 Utah Calif. Son. Submont. My-Au. 



2. C. linearis Nutt. Stems simple or in age sometimes branched, 1-4 dm. 

 high, hirsutulous; leaves linear-lanceolate, 1.5-5 cm. long, 2-8 mm. wide, puberu- 

 lent, the floral ones ovate or lance-ovate, often paler at the base and sometimes 

 tinged with red; flowers in terminal head-like spike; corolla trumpet-shaped, 10-1". 

 mm. long; lobes oval; limb 4-5 mm. broad. C. lanceolata Greene. Dry and 

 sandy soil: Minn. Neb. Colo. Calif. B.C.; adv. in Que., N. B., and N. Y. 

 Plain Mont. My-Au. 



3. C.- ten e 11 a A. Gray. Stem slender, 1 dm. high or less, dichotomously 

 branched, glandular-puberulent; leaves narrowly linear-obtuse, 2-5 cm. long. 

 1-3 mm. wide; flowers axillary, subsessile; calyx in fruit 5 mm. long; corolla 

 purplish, trumpet-shaped, 7-8 mm. long; limb about 3 mm. wide; lobes narrowly 

 ovate. Gilia leptotes A. Gray. Dry hills: B.C.. Wyo. Utah Calif. Sub- 

 mont. Je-Jl. 



4. C. aristella (A. Gray) Rydb. Stem mostly simple, about 1 dm. high, 

 filiform, glandular above; leaves lance-linear, 1-3 cm. long, 1-3 mm. wide, taper- 

 ing at both ends; flowers in the upper axils; calyx in fruit 5 mm. long; corolla 

 trumpet-shaped, about 1 cm. long; limb about 2 mm. wide. Gilia aristella A. 

 Gray. Bare hillsides: Wash. Mont. n Calif. Son. Submont. Je. 



5. C. heterophylla Hook. Stem at first simple, soon branched from the 

 base, puberulent, 1-4 dm. high; leaves hirsute, the lower pinnatifid or bipinnatifid, 

 with lanceolate, acuminate or acute divisions, the upper lanceolate or oblanceo- 

 late, toothed or entire, the floral ones ovate and about 1 cm. long; flowers in 

 head-like clusters at the end of the branches; calyx in fruit 7-8 mm. long; teeth 

 ovate-lanceolate, acuminate; corolla rose-colored, 12-15 mm. long; limb 5-6 mm. 

 broad. G. heterophylla Dougl. Open ground: B.C. Ida. Calif. Submont. 

 Ap-Au. 



6. C. debilis (S. Wats.) Greene. Stems 5-15 cm. high, decumbent, viscid- 

 pubescent above; leaves thick, petioled, puberulent, obovate-spatulate to ob- 

 lanceolate in outline, the earlier entire, the later often 3-5-lobed at the apex; 

 floral leaves like the others, but sessile and crowded; calyx-lobes lance-subulate; 

 corolla violet, 15 mm. long, funnelform; lobes oblong; stamens exserted. 

 debilis S. Wats. G. Howardii M. E. Jones. Among loose rocks : Wash.- -Mont. 

 Wyo. Utah Ore. Mont. Alp. Jl-Au. 



3. PHLOX L. PHLOX. 



Perennial (all ours), or annual herbs, often shrubby at the base. Leaves 

 opposite or sometimes alternate above, entire. Flowers in terminal corymbifonn 

 or paniculate cymes. Calyx of 5 sepals, united into a 5-ribbed tube; lobes 

 pungent. Corolla salverform, white, blue, purple, or red, with a slender 

 lobes spreading, obovate, orbicular, or obcordate. Stamens 5, include 

 ments equally adnate to the tube of the corolla. Capsule included in the 

 of the calyx, which is ruptured at maturity. Seeds not emitting spiral 

 when wetted. 



