210 PITTONIA. 



inland) of Washington, Idaho and Montana. It has not, so 

 far as known, an extended range north and south. I have it 

 in a reduced state, from near Banff in British Colanibia. 

 The nearest reL^tive of this species is 



P. Lyalli, Gray. A taller plant, equably leafy up to the 

 inflorescence; leaves lanceolate-acuminate; iiowers larger, but 

 relatively narrower; sterile filament glabrous; neither herb- 

 age nor corolla soon blackening in the dried state. This 

 seems to occupy a more northerly portion of the same gen- 

 eral region inhabited by P. friiUcosusj but the next is the 

 easternmost representative of the gron^). 



P. MONT ANUS, P. ^^enziesii, Tweedy, FL Yellows t. (excl 

 var. Douglasii) not Hook. Stems G inches high, herbaceous 

 and of annual growth from a slender subterranean caudex or 

 rootstock, and, with the leaves cinerously paberulent, almost 

 equably leafy up to the inflorescence: leaves oblong- to ovate- 

 lanceolate, the lower obtuse, the upper acute or acuminate, 

 all an inch long or less, saliently dentate: flowers in from 

 one to three pairs: corolla 1 inch long, the tube scarcely ven- ' 

 tricose, the color "pink-purple;" sterile filament naked. 



This, Mr. Tweedy's n. 866, from alpine heights on the 

 mountains of Yellowstone Park, is manifestly a very good 

 species, readily distinguishable from P. fridlcostis by its 

 herbaceous character, the stem leafy to the top (no sterile 

 shoots), and the pubescence of the foliage. The corollas in 

 the dried specimen are black; the foliage not darkened. Mr. 

 Tweedy remarks that in this fresh the corolla is pink-purple, 

 and that in the ''var. Douglasii;' (which may be the true P. 

 fndicosus), it is violet-Durole. 



P. Mexziesii, Hook. Fl. ii. 98., excl. syn. Gerardia fruii- 

 rasa, Pursh. Although Sir William Hooker guessed the 

 Menziesian plant and that of Lewis tu be the same, and only 

 meant to propose a new name that should include both, the 

 two are surely distinct, and that of Menzies mav retain the 



