34 Flora of Denver, 



light blue with yellowish tube; whole plant somewhat sticky. 

 Formerly common near the old Ladies' Relief Hospital. 

 Spring and early summer. 



264. Polemonium foliosissimum GRAY. Sticky, leafy- 

 stemmed, flowering stems arranged in a cyme; flowers numer- 

 ous, blue, about one-half inch in diameter, style longer than 

 the filaments and exceeding the corolla. Along Clear Creek, 

 near Berkeley. Rare. 



HYDROPHYLLACE^. (Water-leaf Family.) 



265. Ellfsia Nyctelea L. Tender and succulent, diffusely 

 spreading, leaves pinnately parted, flowers usually solitary in 

 the axils, small corolla light blue or white exceeded by the 

 calyx. Common on the plains and along the streams. Spring 

 and summer. 



266. Phacelia circinata JACQ f. This is a coarse-looking 

 perennial, many-stemmed from the base, whitish with bristly 

 hairs; leaves broad lanceolate, often with one or two pairs of 

 small leaflets at base of petiole. Inflorescence circinate, 

 densely flowered, very bristly, corolla white or rarely violet, 

 with stamens extending beyond. Common along the Platte 

 and Cherry Creek, also along the ditches. Summer. 



267. Phacelia Neo-Mexicana THURBER. Hairy and sticky, 

 leaves twice pinnatifid with blunt lobes. Found in fruit along 

 the Platte beyond Overland Park. Coulter's Manual describes 

 the flowers as white with the stamens much exserted. Spring 

 and summer. 



BORAGINA'CE^E. 



268. Heliotropium Curassavicum L. Smooth, glaucous 

 and fleshy, diffusely spreading, flowers white with a yellow cen- 

 ter, in a dense circinate cluster, becoming black in drying. 

 Near Sloan's Lake. Summer. 



