CERTAIN PENTSTEMONS. 241 



T 



name given it, seeing this is what the author had cliiefly in 

 view, unless P. Scouleri should be proven identical with it; 

 and then it would take that name, as being much older. 

 For the habitat of this species, we leave the "dry pine for- 

 ests" of Lewis — the arid ultramontane interior of the conti- 

 nent, — and go down to the cool moist seaboard climate. 

 Menzies' type is from Nootka; and representative specimens, 

 from Mi Benson, Vancouver Island, are distributed by Mr. 

 Macou!!. The plant is a low densely matted shrub, only the 

 racemes rising erect out of the cespitose mass. The leaves, 

 both as to size and form, are very unlike those of P. fridi- 

 cosus. The flowers are smaller, the corolla-tube ventricose, 

 and the sterile filament densely bearded. The plant is com- 

 mon not only near the seaboard, but also on the higher parts 

 of the Cascade Range of Mountains, and occurs as far south 

 as Mt. Shasta in Northern California. Allied to this, but 

 probably quite district, is a plant exclusively Californian 

 which I shall name provisionally 



P. Davidsonii. a low semiherbaceous creeping under- 

 shrub, the proper stem subterranean mainly, and horizontal, 

 rooting at the Joints; the leafy and aerial branches often less 

 than an inch, sometimes two inches high, very leafy at base 

 only : leaves obovate and oval, obtuse or acutish, entire, vem- 

 less, only 1 to i inch long including the petiole, glabrous, not 

 at all glaucous, light green even in the herbarium : pedun- 

 cles leafy-bracted, glandular-hairy, 1 to 4-flowered: sepals 

 lanceolate-acuminate: corolla 1 inch long, ventricose from 

 near the tips of the sepals, the lobes rather short and not 

 very unequal, the color lilac-purple: stamens woolly, included; 

 sterile filament less than half as long as the others, strongly 



bearded at and near the apex. 



Collected on Mt. Conness, at an altitude of 12,300 feet, lo 

 Aug., 1890, by Dr. George Davidson. The apparently insu- 

 perable obstacle to placing this under P. Jlenzwsn is the 

 fact that, instead of being a rigid cespitose shrub, its tough 

 and almost herbaceous branching stems are underground, all 



