POLEMONIACEAE (PHLOX FAMILY) 



399 



Leaves mostly in a basal rosette. 



Stems leafy; filaments conspicuously exserted .... 11. G. pinnatifida. 

 Stems nearly naked; filaments wanting or very short . 12. G. subnuda. 



IV. ELAPHOCERA. Biennials or annuals; flowers congested. 

 Biennials; leaves more or less divided, or entire; ovules 1-4 in each 



cell. 

 Flowers Spicate ......... 



Flowers capitate. 



Style pilose above ........ 



Style glabrous, at least above 



Annuals, with pinnatifid leaves. 



Style glabrous ......... 



Style pilose below ..... 



V. LEPTODACTYLON. Perennials; leaves alternate or opposite, 



often pungent. 



Shrubby 18. G. pungens. 



Woody at base only. 



Leaves opposite ......... 19. G. Watsonii. 



Leaves alternate. 



Depressed-caespitose ........ 20. G. caespitosa. 



Erect and branching ...... ' 21. G. Nuttallii. 



VI. D ACT YLOPHYLLUM. Annuals with opposite leaves palmately 

 parted or rarely entire; corolla funnelform; seeds mucilaginous 

 or emitting spiral threads when wetted. 



Stamens glabrous 22. G. Harknessii. 



Stamens pilose 23. G. pharnaceoides. 



13. G. spicata. 



14. G. cephaloidea. 



15. G. congesta. 



16. G. polycladon.. 



17. G. pumila. 



1. Gilia micrantha (Kell.) A. Nels. Annual, puberulent or pubescent with 

 gland-tipped hairs, at length freely branched from the base, 5-15 cm. high, 

 as broad as high: leaves alternate, usually at the base of the branches, lanceo- 

 late or linear, 1-3 cm. long: flowers mostly geminate on short subequal pedi- 

 cels: calyx-teeth acute, about half the length of the tube: corolla white or 

 pale pink or violet, the tube usually subsurpassing the calyx: capsule elongated- 

 oval. G. gracilis. (Collomia micrantha Kell. Proc. Cal. Acad. 3: 18, 1863; 

 Microsteris micrantha Greene, Pitt. 3: 303. 1898; under various other names.) 

 Throughout our range and westward. 



2. Gilia Tweedyi Rydb. Bull. Torr. Bot. Club 31: 634. 1904. Annual, 

 branched, 1-4 dm. high; stem and branches glandular-puberulent, especially 

 above: leaves 1-3 cm. long, pinnatifid with lanceolate-cuspidate lobes, or the 

 uppermost entire: flowers paniculate; pedicels 1-8 mm. long: calyx about 

 3 mm. long, scarious between the green ribs, the lobes lanceolate: corolla 

 funnelform, barely exceeding the calyx, bluish: capsule ovoid, about 4 mm. 

 long. G. minutiflora. Colorado to Montana and Idaho. 



3. Gilia tenerrima Gray, Proc. Am. Acad. 8: 277. 1870. Slender annual, 

 1-3 dm. high, diffusely branched from the base with numerous, scattered, 

 divaricate, almost filiform branchlets, minutely glandular-pubescent: leaves 

 alternate, linear or the radical lanceolate, the upper much reduced, entire: 

 flowers small, solitary, terminal on the branchlets: corolla salverform, twice 

 as long as the calyx, white: capsule compressed-globose: seed-coats muci- 

 laginous. Western Wyoming, Utah, and Idaho. 



4. Gilia leptomeria Gray, 1. c. More or less glandular-pubescent; stem erect, 

 divaricately branched from base to summit, 6-15 cm. high: radical leaves 

 rosulate, oblong-linear, dentate to pinnatifid, teeth usually short-mucronate; 

 cauline leaves reduced and bract-like: flowers numerous, corymbose-paniculate: 

 calyx-teeth shorter than the tube: corolla white or rose-color, salverform, 4-6 

 mm. long, the tube nearly twice the length of the lobes and of the calyx: sta- 

 mens inserted in the throat: style as long as the corolla: ovules and seeds 2-3 

 in each cell of the globose capsule. Colorado to California. 



5. Gilia inconspicua (Smith) Dougl. Hook. Mag. 56: pi. 2883. 1829. One to 

 three or more dm. high, usually with slight woolly pubescence when young, and 

 viscid-glandular, often branching from the base: leaves mostly pinnatifid or 

 pinna tely-parted, or the lowest bipinnatifid, with short, mucronate-cuspidate 

 lobes; the uppermost becoming small, subulate and entire: flowers either some- 

 what crowded and subsessile or at length loosely panicled and some of them 

 slender-pediceled : corolla violet or purplish, 5-10 mm. long, narrowly funnel- 

 form, the lobes oval, half. as long as the tube which much exceeds the calyx: 

 ovules 2-several in each cell. Very variable, and a number of segregates have 



