64 KEY TO THE SPECIES 



the ground that the small white flowers suggest drops of milk spattered on the 

 ground. 



3. Phlox multiflora Aven Nelson (Showy Phlox). Base woody and freely 

 branched, with numerous short, nearly erect, herbaceous, 1-flowered branchlets; 

 leaves brpadly linear, glabrous, 1-2 cm. long ; calyx angled by the prominent 

 midrib of its lobes, which are as long as the tube ; corolla white or pink, about 2 

 cm. broad, its tube exceeding the calyx. Very showy ; moist canons and slopes. 



* * Plants single, or loosely tufted, with woody base and distant leaves. 



. 4. Phlox longifolia Nutt. (Long-leaved Phlox). Slender and mostly erect, 

 10-Si5 cm. high, the lower part of the stem woody and perennial ; leaves linear, 

 with prominent midrib and thickened margins, 3-6 cm. long ; flowers in small 

 corymbose cymes, white, about 2 cm. broad. Hillsides and mountain slopes. 



3. GILIA (GiLiA) 



Annual, biennial or perennial herbs, or sometimes shrubby; calyx 5-toothed 

 or cleft, scarious in the sinuses ; corolla various in shape ; capsule 3-celled, 



* Leaves alternate, entire or nearly so ; flowers spicate. 



1. Gilia spicata Nutt. (Spicate Gilia). Glabrate, the stems simple, 1.5-3 dm. 

 high ; leaves thickish, linear and entire, or sometimes 3-cleft ; flowers in a dense 

 thyrsoid spike ; flowers bracteate, the bracts and calyx-lobes pungent ; corolla- 

 lobes shorter than the tube. Sandy draws and slopes. 



* * Leaves fascicled, palmately parted, rigid and pungent ; flowers solitary or 

 few in a cluster at the summit of the branchlets. 



2. Gilia pungens Benth. (Prickly Gilia). Shrubby and rigidly branched, 

 1-S dm. high ; somewhat viscid-puberulent ; leaves 3-5-parted into linear, rigid, 

 pungent lobes, densely fascicled in the axils ; flowers funnel-form, the limb 12-18 

 mm. broad, white or pinkish. Ravines and canons. 



* * * Leaves pionately parted into linear segments ; flowers thyrsoid-panicu- 

 late ; corolla salver-form or funnel-form with long slender tube. 



3. Gilia aggregata Spreng. (Scarlet Gilia). Somewhat pubescent, loosely 

 branched 4-8 dm. high ; leaves with thickish, linear, sharp-pointed lobes ; flowers 

 in small nearly sessile clusters ; corolla scarlet or pink-red, with slender tube 3-4 

 cm. long, and short lanceolate soon recurved lobes. 



4. Gilia laxiflora (Coulter) G. E. O. (Colorado Gilia). Annual branched, 

 glabrous below, minutely glandular upward, 2-3 dm. high ; leaves with filiform 

 mucronate segments ; inflorescence open ; corolla white, slender-tubular with 

 acuminate lobes, 2-3 cm. long and 2 or 3 times as long as the calyx. 



5. Gilia longiflora (Torr.) Don. (White-flowered Gilia). Resembling the 

 preceding, but larger, freely branched from the base ; corolla, white, salver-form, 

 the limb about 2 cm. broad, the tube slender, 3-4 cm. long and 6 or 7 times as long 

 as the narrowly campanulate calyx. 



* * * * Leaves pinnately lobed ; flowers paniculate ; corolla salver-form, small, 

 only 6-10 mm. long. 



6. Gilia pinnatifida Nutt. (Small-plowered Gilia). Biennial or perennial, 

 viscid- glandular, especially above ; leaves crowded on the crown, becoming small 

 and distant above, linear-oblanceolate in outline, deeply pinnatifid, the small lobes 

 linear-oblong ; flowers numerous ; corolla violet or blue, its tube barely exceeding 

 the calyx. Dry sandy soil. 



