516 SCROPHULARIACEZ PENTSTEMON’ 
purple, an inch long, funnelform, with rather long tube and ample throat: 
stamens and inside of corolla glabrous, the sterile filament sometimes 
bearded at the apex: capsule ovoid, about twice as long as the calyx. On 
cliffs and rocky banks, Oregon and Washington. 
P. triphyllus Dougl. Lindl. Bot. Reg. t. 1245. Stems slender about 
a foot high, usually simple: cauline leaves lanceolate or linear, an inch or 
more long, rigid, from denticulate to irregularly pinnatifid-laciniate: the up- 
per sometimes ternately verticillate, sometimes alternate: thyrsus narrow, 
loosely paniculate: sepals lanceolate, acuminate: corolla comparatively small 
and narrow, 6-9 lines long: ‘sterile filament densely bearded at the apex. 
Rocky banks, Oregon to Brit. Columbia, 
P. gracilentus Gray Pac. R. Rep. vi, 83. Glabrous: stems slender, 
from a lignescent base, a foot or more high, r aher few-leaved, naked above, 
terminating in loose and rather simple paniculate thyrsus: leaves glabrous 
and green, entire, lanceolate or the upper linear and the lower sometimes 
oblong, all narrowed at base: peduncles viscid-puberulent, 2-5-flowered, 
the lower elongated: pedicels short: corolla blue or violet, halfinch long, 
slender-funnelform, moderately bilabiate, its lobes only 2 lines long, mode- 
rately spreading: sterile filament: slightly bearded. Mountains of southern 
Oregon and adjacent California. 
P. Rezli Regel Act. Hort. Petrop, ii, 326. Smooth below, the inflor- 
escence more or less pubescent and glandular: stems 10-18 inches high from 
a woody base: leaves all lanceolate or linear, or the lower oblanceolate, en- 
tire, 1-3 inches long; thyrsus either narrow, or more diffuse and paniculate 
with divergent branches: sepals ovate to lanceolate, about 2 lines long: corolla 
blue, 8-10 lines long, funnelform, with rather long tube and campanulate 
throat, sterile filament glabrous. On gravelly banks of streams, southern 
Oregon and northern California. 
P. Cusickii Gray Proc, Am. Acad. xvi, 106. Pale and very minutely 
pruinose-puberulent: stems a foot or less high, many from a barely lignescent 
caudex, strict, equably leafy up to the racemiform loose thyrsus: leaves very 
narrowly linear, an inch or two long by a line or more wide, or some of the 
lower broader and spatulate: peduncles 1-2-flowered: sepals ovate, acuminate, 
glabrous, not glandular: corolla barely 9 lines long, bright blue with purple 
tube, a moderately enlarged throat and short lobes: sterile filament spatulate- 
dilated at the very tip: very glabrous. On the slopes of Eagle Creek Moun- 
tains, northeastern Oregen. d 
P. Kingii Watson Bot, King 223 Pruinose or glandular-pubescent, at 
least below, stems numerous from a shrubby base, ascending, 4-8 inches 
high: leaves oblanceolate, mostly acute, entire, sessile with a narrowed base, 
the lowermost somewhat spatulate and short-petioled, 1-2 inches long by 2-4 
lines wide: thyrsus secund, short and rather leafy at base: peduncles 1-4-flow- 
ered: sepals ovate or obloug-lanceolate, more or less acuminate: corolla 8 
lines long, purple, dilated upward, somewhat bilabiate: sterile filament 
flattened toward the apex, glabrous. In the mountains of eastern Oregon 
to Nevada. 
P. azureus Benth. Pl. Hartw. 327. Glabrous and glaucous, rarely 
pruinose-puberulent: stems erect or ascending from a woody base, 1-3 feet 
high: leaves from narrowly- to ovate-lanceolate or even broader, the upper 
ones wider at base, the lowest more or less petioled, 1-2 inches long: thyrsus 
virgate, loose, usually elongated : sepals ovate or oblong, scarious-margined, 
with or without a conspicuous acumination, about 2 lines long: corolla 1-144 
inches long, azure-blue verging or changing to violet, the base sometimes red. 
disk, broadly funnelform, the expanded limb sometimes an inch in diameter; 
