38 



POLEMONIACEAE. 



[Vol. III. 



i. Gilia gracilis Hook. Entire-leaved 

 Gilia. (Fig. 2983.) 



Gilia gracilis Hook. Bot. Mag. pi. 2Q24. 1829. 

 Collomia gracilis Dougl. in Benth. Bot. Reg. pi. 1622. 



1833- 



Annual, pubescent, at length corymbosely much 

 branched, 2 / -6 / high, the branches asceuding. 

 Lower and basal leaves oblong to spatulate, obtuse, 

 commonly opposite and nearly sessile, the upper 

 linear or lanceolate, sessile, %f-x f long, i // -2 // wide, 

 opposite or alternate, entire; cymes 1-5-flowered; 

 calyx-lobes linear-subulate, usually longer than the 

 tube; corolla 4 // -6 // long, the tube yellowish, nar- 

 row, equalling or slightly longer than the calyx, the 

 lobes purple or violet, short; ovules 2-3 in each cav- 

 ity; capsule oblong, obtuse, as long as or longer 

 than the calyx-tube; seeds mucilaginous w T hen wet. 



In dry or moist soil, western Nebraska, Colorado 

 and New Mexico to British Columbia and California. 

 April-Aug. 



2. Gilia pungens (Torr.) Benth. Sharp- 

 leaved Gilia. (Fig. 2984.) 



Canlna pungens Torr. Ann. Lye. N. Y. 2: 26. 1826. 

 Gilia pungens Benth. in DC. Prodr. 9: 316. 1845. 



Shrubby, rigid, puberulent, glabrate, or somewhat 

 viscid, usually much branched, 4 / -8 / high. Leaves 

 alternate, or the lower opposite, sessile, 3 // -6 // long, 

 palmately divided into 3-7 subulate rigid awl-shaped 

 segments, often with smaller ones fascicled in their 

 axils, sometimes densely imbricated; flowers solitary, 

 or 2-3 together, sessile at the ends of the branches, 

 8 // -i2 // long; calyx-lobes subulate, as long as the tube, 

 or shorter; corolla pink or white, funnelform, the tube 

 longer thau the calyx, the limb 5-lobed; ovules 8-10 in 

 each cell; seeds not mucilaginous when wetted. 



Tn dry rocky soil, Arizona to Colorado, Wyoming, Cali- 

 fornia and British Columbia. [Not definitely known from 

 within our area.] Plant fragrant in drying. May-July. 



Gilia pungens caespitosa (Nutt.) A. Gray, Proc. Am. Acad. 8: 268. 1870. 

 Leptodaclylon caespitosum Nutt. Journ. Phil. Acad. (II.) 1: 157. 1848. 



Low, densely tufted, 2' -3' high; leaves much imbricated; flowers smaller. 

 Nebraska (Nuttall, Rydberg). Probably a distinct species. 



3. Gilia longifldra (Torr.) Don. White-flowered Gilia. (Fig. 2985.) 



Cantua longiflora Torr. Ann. Lye. 2: 221. 1827. 

 Gilia longiflora Don, Gard. Diet. 4: 245. 1838. 

 Collomia longiflora A. Gray, Proc. Am. Acad. 8: 261. 



1870. 



Annual, glabrous, paniculately branched, i-2 

 high. Leaves all alternate, sessile, i / -2^ / long, 

 pinnately divided into linear-filiform segments or 

 the uppermost entire; flowers numerous, white, 

 paniculate, about 2' long; calyx-teeth triangular- 

 lanceolate, acuminate, shorter than the tube; corolla 

 salverform, its tube narrow, 4 or 5 times as long as 

 the orbicular or ovate, rounded or pointed, spread- 

 ing lobes; stamens unequally inserted; ovules S-12 

 in each cell; capsule narrowly oblong, exceeding or 

 equalling the calyx; seed-coat mucilaginous and 

 emitting spiral threads when wetted. 



In dry soil, Nebraska and Colorado to Texas and 

 Arizona. May-Sept. 



Gilia coronopifolia Pers., a related species with less 

 spreading corolla-lobes, is commonly cultivated, and 

 rarely escapes from gardens. 



Scott's Bluffs, 



