164 LEAFLETS. 



obovate-dilated, all subulate-pointed and with narrow often 

 erose scarious margins : corolla purple, small for the plant, 4 

 lines long, ascending, not deflexed as in the allied P confertus ; 

 tube broad, nearly cylindric. 



Pine Kidge, Fresno Co., Calif., July, 1900, Hall Chandler, n. 

 301 as in U. S. Herb. 



P. Lasseniaitus. Akin to P. confertus, almost wholly herb- 

 aceous, stout, erect, a foot high, light green and glabrous : low- 

 est leaves oblanceolate, cauline in 4 pairs, ovate to oblong- 

 lanceolate, 2 inches long, sessile and half -clasping by a broad 

 base : congested clusters of flowers sessile or definitely pedun- 

 culate : sepals with long ligulif orm nearly linear body and an 

 abrupt long and slender caudate acumiuation, the slightly scar- 

 ious margins erose or lacerate : corolla whitish or yellowish, 

 short, but the tube somewhat ventricose, not cylindric, the seg- 

 ments not small. 



At 6,000 feet on Lassen's Peak, California, 8 July, 1897, M. E. 

 Jones. Type in U. S. Herb. It is also in my herbarium from 

 the same region by Mrs. Austin, and again in a purple-flowered 

 form as collected by myself above Donner Lake, 26 July, 1895. 



P. LiNEOLATUS. Tufted, slender, a foot high, glaucescent, 

 obscurely puberulent, leafy up to the open thyrsus of middle- 

 sized flowers : leaves all entire, the lowest with oblanceolate or 

 elliptic blade and slender petiole, the whole but an inch long, 

 the cauline longer, oblanceolate to oblong-linear, sessile, ascend- 

 ing : peduncles 3-flowered and, with the calyx, sparsely villous 

 with gland-tipped hairs : sepals elliptic-lanceolate, acuminate, 

 finely and closely lineolate, not scarious-edged : corolla purple, 

 J inch long, narrow but ventricose, bilabiate: sterile filament 

 densely hirtellous at tip, sparsely so to the middle. 



Known only as collected by myself in the West Humboldt 

 Mountains, Nevada, July, 1894. 



P. PHLOGiFOLius. Tufted stems stout, rigid, upright, 1 to 

 IJ feet high, very leafy with large leaves exceeding the inter- 

 nodes, the whole plant glabrous, glaucous : basal leaves not seen, 



