462 POLEMONIACE^E POLEMONIDM 



below, pubescent above: stems rather stout, 4-8 inches high, corymbosely 

 branched: leaflets 15^21, oblong to broadly lanceolate, or some of the lower 

 ones obovate, 4-8 lines long: flowers in cymulose clusters: calyx open- 

 campanulate, 2-3 lines long, cleft to the middle, with short triangular 

 lobes: corolla pale blue or purplish, 4-6 lines long; its ample rounded lobes 

 much longer than the tube : filaments pilose and dilated at base : ovules 

 2-4, and seeds 1 or 2 in each cell. On the highest mountains, California 

 to the Arctic coast and the Rocky Mountains. 



P. pulchellnm Bunge in Ledeb. Fl. Alt. i, 233. Minutely puberu- 

 lent and viscid-glandular: stems rather slender, sparingly branched, 6-10 

 inches high: leaflets 9-21, oblong to lanceolate : flowers in cymulose clus- 

 ters, mostly slender-pediceled : calyx narrowly campanulate, cleft to below 

 the middle, 2-3 lines long : corolla blue with white tube, 6-8 lines long, the 

 ample oblong lobes much longer than the short tube : filaments pilose but 

 not dilated at base : capsule obovoid. much shorter than the calyx : ovules 

 2-4 and seeds usually 1 in each cell. On high mountains, Oregon to Alaska 

 and the Rocky Mountains. 



* * Tall, from slender rootstocks or roots : leaves and leaflets com- 

 paratively large. 



*- Stems erect, 1-3 feet high : leaflets numerous and mostly approx- 

 imate, not rarely confluent or the rachig winged : ovules 6-13 in each 

 cell. 



P. occidentale Greene Pitt ii, 75. P, cceruleum of authors as to our 

 plant. Either glabrous or viscid-pubescent: stem strict and virgate, 2-3 

 feet high, from running rootstocks, 5-10-leaved : leaflets 15-23, Irom linear- 

 lanceolate to oblong-ovate, 5-20 lines long: flowers numerous, in a naked 

 and narrow thyrsus or panicle: calyx cleft to or below the middle, with 

 short lanceolate lobes : corolla blue, an inch or less in diameter, the obovate 

 lobes much longer than the tube : filaments densely bearded at base, often 

 equalling the corolla-lobes: style exserted. In springy places on high 

 mountains, California to Alaska and the Rocky Mountains. 



P. foliosissimnm Gray S) n. Fl. ii, 151. Very viscid-pubescent 

 throughout and strong-scented: stems a foot or more high , very leaf y : 

 leaflets from lanceolate to ovate-lanceolate : flowers corymbose-cymose. 

 small: corolla commonly white or cream color, sometimes violet, twice as 

 long as the calyx which is 5-cleft to or beyond the middle : style and sta- 

 mens not exserted. Idaho to the Rocky Mountains and New Mexico. 



P. pectinatum Greene Bull. Cal. Acad. i, 10. Glabrous or the inflor- 

 escence viscid-pubescent: stems clustered, a foot or more high, slender, 

 leafy to the summit : leaflets linear-filiform, an inch long, in about 5 pairs : 

 flowers corymbose-cymose : calyx cleft to beyond the middle : corolla half- 

 inch broad, white or cream-color : seeds wingless. Collected in eastern 

 Washington by Prof. E. W. Hilgard in June 182. 



*- Herbage glabrous or slightly pubescent, neither viscid nor 

 glandular : stems lax, with diffuse branches and open corymbiform or 

 paniculate inflorescence: leaflets fewer and rather large, merabranace- 

 ous, only the ultimate at all confluent : style and stamens rather 

 shorter than the corolla: ovules only 3-^-4 in each cell. 

 P. earnenm Gray 1. c. Stems rather stout 1-2 feet high : leaflets 5-15, 

 from ovate to oblong- lanceolate, 6-18 lines long: branches somewhat um- 

 b ellately 3-5-flowered : pedicels slender, pubescent : calyx campanulate, 

 6-10 lines long, pubescent ; the lanceolate acute lobes longer than the tube : 

 corolla salmon-color or flesh-color, 12-18 lines broad, the ample rounded 

 obovate lobes thrice longer than the tube: filaments slender, villous at the 

 sightly dilated base : capsule oblong not longer than the tube of the calyx : 

 seds 2 or 3 in each cell. In damp places, southwestern Oregon to Calif. 



