470 HYDROPHYLLACE^ phacelia 



ovate, hardly mucronate : seeds 10-18, wing-angled. In the high mountains 

 of Brit. Columbia to California. 



P. sericea Gray Am. Jour. Sci. ser. 2, xxxiv, 254. Stems 8-1 2 inches 

 high from a branching perennial caudex, silky-pubescent or canescent or 

 the simple virgate stems and inflorescence villous-hirsute. leafy to the top: 

 leaves pinnately parted into linear or narrow-oblong numerous and often 

 again few-cleft or pinnatifid divisions, silkv-canescent or sometime greenish : 

 the lower petioled ; the uppermost simpler and nearly sessile : short spikes 

 crowded in a naked spike-like thyrsUs : calyx- lobes linear, minutely hispid : 

 corolla blue or whitish, very open-campanulate, cleft to the middle, mar- 

 cescent-persistent ; its appendages oblong, vertical, wholly free from the 

 filaments : stamens long-exserted ; anthers short-oval : style 2-cleftat the a- 

 pex : capsule ovate, short-acuminate, a little longer than the calyx and mar- 

 cescent corolla, 12-18 seeded: seeds ovate-oblong, terete, acutish, longitud- 

 inally costate and transversely alveolate-reticulated. On high mountains, 

 Oregon and Washington to the Arctic regions and the Rocky Mountains. 



P. Franklinii Gray Man. ed. 2, 329. Villous-pubescent throughout: 

 stem erect, 6-18 inches high, from an annual root, simple or corymbosely 

 branched at the summit: leaves 1%-i inches lo»g, pinnately parted into 

 7-15 linear or linear-oblong acute entire dentate or incised segments: flow- 

 ers blue to nearly white, short pediceled, in dense scorpioid racemes: 

 calyx-lobes linear-lanceolate, acute, longer than the tube of the rotate- 

 campanulate corolla: appendages of the corolla long and narrow, free at 

 the apex, and at base free from the filaments : stamens about as long as 

 the corolla; anthers short : style 2-cleft at the apex : capsule ovate, acute, 

 about equalling the calyx, seeds numerous, oval, minutely alveolate in ver- 

 tical lines. Along the Snake river southwestern Idaho to Lake Superior. 



P. Menziesii Torr. Watson Bot. King 252. Hispid or roughish-hirsute, 

 and usually cinereous-pubescent also: stem erect, 4-12 inches high from an 

 annual root, at length paniculately branched :leaves mostly sessile, linear- 

 lanceolate, entire or some of them deeply cleft; the lobes few or single, lin- 

 ear or lanceolate entire: spikes or spike like racemes thyrsoid-paniculate,at 

 length elongated and erect : calyx-lobes linear, hispid-ciliate, 4-5 lines long : 

 corolla blue varying to white, rotate-campanulate, 6-10 lines in diameter; 

 its appendages connivent in pairs opposite the lobes, forming 5 nectarifer- 

 ous grooves : alternate stamens shorter than the corolla : style 2-cleft at the 

 apex: capsule ovate, acuminate, about half the length of the calyx: ovules 

 12—16 : seeds oblong coarsely favose-reticulated. Common in dry grounds, 

 Oregon and Washington to California, Brit. Columbia and Montana. 



P. verna Howell Erythea iii, 35. Soft-pubescent and cinereous: 

 stem 4-10 inches high from an annual root, paniculately branched: leaves 

 obovate tospatulate, entire or rarely some of the lower ones incisely toothed, 

 abruptly contracted below to a winged petiole, or the upper ones sessile: 

 corolla pale blue, but little exceeding the calyx, open-campanulate, cleft to 

 the middle, its appendages broad and free from the filaments; calyx-lobes 

 linear-lanceolate, 2-3 lines long, hirsute: stamens exserted, anthers oval; 

 style deeply 2-cleft, hispidulous : capsule ovoid, acuminate, more than half 

 the length of the calyx ; seeds 8-12, oblong to obovate, favose- pitted. On 

 rocky ridges in the IJmpqua Valley, Oregon. 



§ 3 Microgenetes B. & H. Gen. ii 828. Low annuals with 

 mostly pinnatifid leaves. Appendages in the corolla present or 

 rarely wanting Style 2-cleft only at the apex. Stamens unequal, 

 not exserted. Ovules several on each placenta. Seeds oblong, 

 strongly corrugated transversely. 



P. Ivesiana Torr. Bot. Ives 21. Hirsute-pubescent and glandular: 



