38 



rOLEMONIACEAE. 



[Vol,. III. 



I. Gilia gracilis Hook. Entire-leaved 

 Gilia. (Fig. 2983.) 



Cilia gracilis Hook. Bot. Maj;. pi- 2924. 1829. 

 Cotlomia gracilis Dougl. in Betith. Bot. Reg. pi. 1622. 



1833- 



.Annual, pubescent, at length corymbosely much 

 branched, 2'-6' high, the branches ascending. 

 Lower and basal leaves oblong to spatulate, obtuse, 

 commonly opposite and nearly sessile, the upper 

 linear or lanceolate, sessile, %'-i' 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 when wet. 



In drj- or moist soil, western Nebraska, Colorado 

 and New Mexico to British Columbia and California. 

 April-Aug. 



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

 leaved Gilia. (.Fig. 2984.) 



Cantua pungens Torr. Ann. Lye. N. Y. 2: 26. :826. 

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



Shrubby, rigid, puberulent, glabrate, or somewhat 

 viscid, usually much branched, 4'-S' 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, fuunelform, the tube 

 longer than the calyx, the limb 5-lobed; ovules S-io in 

 each cell; seeds not mucilagiuous when wetted. 



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

 fornia and British Columbia. [Not definitely known from 

 within our area.] PUmt fragrant in drj'ing. May-July. 



Gilia pungens caespitosa ( Nutt. ) A. Graj-, Proc 

 Leplodaclylon caespilosum Nutt. Journ. Phil. Acad. (II.) i: 



Low, densely tufted, 2'-;,' high: leaves much imbricated 

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



57 



Acad. 8: 268. i8;o. 



184s- 



flowers smaller. Scott's Bluffs, 



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



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

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

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



18-0. 



Annual, glabrous, paniculately branched, l°-2° 

 high. Leaves all alternate, sessile, \'-2yi' 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 

 salvcrform, 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 coionopifolia Pers., a related species with less 

 spreading corolla-lobes, is commonly cultivated, and 

 rarely escapes from gardens. 



