coLLOMiA POLEMONIACEAE 453 



narrowly oblong lobes 4-5 lines long: ovules 8-10 in each cell. Dry plains 

 of eastern Oregon to California, Arizona and Colorado. 



Var. Hookeri. Gilia Hookeri Benth. Taller, with sparser and more 

 rigid leaves and viscid-pubescent flowering shoots. Eastern Oregon to 

 California. 



Var. squarrosa. Gilia pungens var. squarrosa Gray. A foot or two 

 high with virgate branches beset with stouter and more rigid recurved- 

 spreading pungent leaves. Dry interior of Washington and Idaho to Nev. 



3 COLLOMIA Nutt. Gen. i, 126. 

 Annual or rarely perennial herbs with mostly entire alternate 

 leaves and purple white or yellow flowers in capitate clusters or 

 cymes. Calyx obpyramidal, 5-cleft, scarious in the sinuses ac- 

 crescent in fruit, not distended nor ruptured by the maturing cap- 

 sule ; its lobes erect and entire ; the sinuses often at length en- 

 larged into revolute lobes. Corolla tubular-funnelfonm or salver- 

 form: the limb 5-lobed. Stamens unequally inserted on the tube 

 of the corolla : the filaments unequal. Ovules few or solitary in 

 each cell. Seeds developing both mucilage and spiral threads 

 when wetted. 



* Annuals with strict and leafy stems, entire or merely toothed 

 leaves and numerous flowers in capitate-crowded terminal leafy 

 clusters. 



C. grandiflora Dougl. Lindl. Bot. Reg. t. 1174. Stems erect, 6-20 

 inches high, simple or sparingly branched: leaves lanceolate to linear, 

 entire or coarsely serrate, acute or acuminate, 1-3 inches long, sessile or 

 nearly so : flowers yellow or salmon color, numerous in a dense capitate 

 leafy-bracted cluster : bracts broadly lanceolate to ovate : calyx somewhat 

 funnelform, the triangular lobes about half as long as the tube, glandular : 

 corolla nearly an inch long with a long filiform tube; the oblong lobes 

 about as long as its funnelform throat: ovules solitary in the cells. Com- 

 mon in open woods, California to Brit. Columbia and the Rocky Mountains. 



C. linearis Nutt. Gen. i, 126. Viscid-puberulent annual : stem erect, 

 4-12 inches high, simple or branched : leaves narrowly lanceolate to linear- 

 oblong, entire or few-toothed or few-lobed, acute at the apex, narrowed 

 below, sessile, or the lower short-petioled, 1-2 inches long : flowers numer- 

 ous, in a close capitate cluster, 5-7 lines long: calyx-lobes triangular-lan- 

 ceolate, acute : corolla purple to nearly white, with a very slender tube 

 longer than the calyx and but little enlarged throat, the rounded lobes 1-2 

 lines long : ovules solitary in the cells. Eastern Oregon to Brit. Columbia, 

 Manitoba, Minnesota, Arizona and California. 



Var. subulata Gray Proc. Am. Acad, viii, 358. "A low and slender 

 form, diffusely branching from the base : leaves narrow and acute : flowers 

 few in the lower forks : calyx-lobes attenuate-subulate, the tips almost 

 awn-like from a broad base, rather longer than the tube. Nevada and 

 adjacent parts of California and Oregon. 



* * Annuals usually branching from the base, the flowers in nearly 

 or quite bractless small clusters in the axils and at the ends of the 

 branches. 



C. tinctoria Kellogg Proc. Cal. Acad, iii, 17, t. 2. Gilia aristella Gray. 

 Stem slender, 3-10 inches high, few-leaved, diffusely branched, minutely 

 pubescent and glandular above: leaves lanceolate-linear, tapering to both 

 ends, 6-14 lines long : flowers 1-3 in the forks and upper axils : calyx cam ■ 



