PHLOX FAMILY 683 



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



1. C. grandijlora. 



Corolla about 1 cm. long; calyx-lobes lanceolate, acute. 2. C. lincans. 



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



Calyx-lobes triangvilar, merely acute. 3. C. teneila. 



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



Leaves, at least the lower, pinnately divided; divisions agam toollied. 



o. C. hrtrrophyUa. 



Perennials with a cespitose rootstock, 6- ^- dcfy^^is. 



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

 1.5-7 dm. high, hirsute above; leaves hnear-lanceolate, 4-10 cm. long, 5-15 mm. 

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

 cid; flowers in dense head-like leafy spikes ending the stem and its branches, 

 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 grandijlora 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 ba^c and sometimes 

 tinged with red; flowers in terminal head-like spike; corolla trmni>et-shaped, IQ-lo 

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

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



Plain — Mo7it. My-Au. 



3. C. tenella 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 

 purpUsh, trumpet-shaped, 7-8 mm. long; limb about 3 mm. ^vnde; 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; corol a 

 trumpet-shaped, about 1 cm. long; Umb about 2 mm. wade. Oiliaansklla A. 

 Gray. Bare hillsides: Wash.— Mont.— n CaHf. Son,—SubmonL 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 mni. long: limb 5-6 mm 

 broad. G. heterophylla Dougl, Open ground: B.C.— Ida,— Cahf. 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-o-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 exsert^ed. Oiiia 

 debilis S Wats. G, Howardii M. E. Jones. Among loose rocks: \\ ash.— Mont. 



.Wyo_X;tah— Ore. Mont.-^Alp. Jl-Au. 



3, PHLOX L. Phlox. 



ase. Leaves 

 cor\'mbiform 



Perennial (all ours), or annual lierDs, oiten suruDoy ai.ine 

 opposite or sometunes alternate above entire. Flowers mtermina] 

 or paniculate c>™es. Calyx of 5 sepak, united into a 5-ribbed tube lobes otten 

 p^gent. CoroUa salverform, white, blue, purple, or red, with a, slender tube; 

 lohps snreading obovate, orbicular, or obcordate. Stamens o, included, fik- 

 mSsI^?^^^^^^ to the tube of the corolla. Capsule included in the tube 



of the calyx,''which is ruptured at maturity. Seeds not emittmg spiral threads 

 when wetted. 



