HYDROPHYLLACEAE. 203 



Capnorea lasiantha Greene. Rootstocks stout; scapes 6-8 cm, long; 

 leaves spatulate to oblong, obtuse, sparsely strigose-pubescent, 2-4 cm. long, 

 the petioles mostly as long; corolla campanulate, the lobes shorter than the 

 tube. In moist soil, not rare. 



Capnorea villosula Greene. Rootstocks slender; scapes 5-6 cm. high, 

 shorter than the leaves; leaves few, spatulate, obtuse, pubescent beneath, 

 1-3 cm. long, the petiole as long or snorter; corolla rotate, about 1 cm. broad, 

 the lobes longer than the tube. Moist hillsides, near Pullman. 



Capnorea pumila (Dougl.) Greene. Very similar to C. villosula but the 

 leaves glabrous except on the margins. Moist places, infrequent. 



297. PHACELIA. 



Perennial or mostly annual herbs; leaves simple, lobed or 

 divided, alternate, or the lowest opposite; flowers in one-sided 

 raceme-like cymes; calyx deeply 5-parted, the lobes usually 

 narrow and similar; corolla from almost rotate to narrow-funnel- 

 form, commonly with appendages inside of the tube, consisting 

 of 10 vertical plaits in pairs between the bases of the filaments; 

 stamens equally inserted low down or at the base of the corolla; 

 ovary with narrow parietal placentae; ovules and seeds 4 

 numerous. 



Leaves pinnately cleft into narrow subequal lobes; flowers blue. 



P. idahoensis. 

 Leaves entire or with a few much smaller lateral divisions. 



Corolla bright blue, rather large; ovules 12-16. P. linearis. 



Corolla white or bluish, small; ovules 4. P. heterophylla. 



Phacelia idahoensis Henderson. Perennial, erect, 50-70 cm. high, nearly 

 glabrous below, villous-hirsute in the inflorescence, leafy to the top; leaves 

 pinnately-parted, the divisions again cleft ; inflorescence a dense narrow thyrsus, 

 with many short densely-flowered lateral branches; flowers pale blue; corolla 

 open campanulate, the lobes equalling the tube, which bears ten vertical 

 appendages within. In wet meadows, Craig Mountains and near Collins, 

 Idaho. 



Phacelia linearis (Pursh) Holzinger. Annual, 10-50 cm. high, simple 

 below the inflorescence; whole plant rough-hairy, usually with some shorter 

 white pubescence; leaves sessile, linear or lanceolate, entire or cleft into 2-5 

 narrow lobes; inflorescence usually branched, consisting of spike-like racemes; 

 pedicels short; calyx-lobes linear, hispid-ciliate; corolla violet-blue, nearly 

 rotate, 12-15 mm. broad, appendages 10, narrow, free from the filaments; 

 stamens equalling the corolla; filaments sparsely hairy; style 2-cleft; capsule 

 shorter than the calyx; ovules 12-16; seeds pitted-reticulate. Stony soil, 

 common in the warmer valleys. 



Phacelia heterophylla Pursh. Biennial, erect, 50-150 cm. high, rough- 

 hairy and canescent throughout; leaves lanceolate, acute, simple or with 1 or 2 

 pairs of small lateral leaflets, the lower petioled, the upper nearly sessile; 

 inflorescence compound, of racemosely arranged spikes, much coiled when in 

 bud; calyx-lobes linear or lanceolate, very hispid; corolla white or whitish, 

 5-lobed, exceeding the calyx; appendages 10, broad, united at base to the 

 filaments; stamens much exserted, the filaments sparsely hairy; capsule ovate, 

 acute; ovules 4 ; seed-coats pitted and honey-comb-like. Common and variable. 



