it differs from both these well-known species in the white, 
widely campanulate and not urceolate corollas. The anthers 
indeed at first sight suggest that they may be imperfect 
and that the plant is a hybrid, but they contain pollen 
which appears to be quite normal, and the plant besides 
produces abundant seed. There is little doubt that it 1s a 
native of the Rocky Mountains or of the Cascade Range, 
the habitat of P. empetriformis and its immediate allies, but 
as to the exact home of the charming plant now described 
we are at present without a clue, It is easily propagated 
by cuttings in sandy peaty soil made in July and placed in 
a close slightly heated frame. 
Descriprion.—Shrublet, about 6 in. high; branches erect, 
rigid, closely leafy; twigs sparsely beset with blackish 
glandular setae and lines of minute hairs. Leaves close- 
set, subsessile, linear, obtuse, with distinctly recurved edges, 
3-4 lin. long, under 1 lin. wide, smooth and glabrous above, 
beneath 2-suleate owing to the stout midrib and the reflexed 
edges, densely white papillose along the midrib, finely 
spinulose serrate or, in the upper leaves, glandular ciliate 
in the folds, FVowers in clusters of 5-7 at the tips 
of the twigs, axillary; pedicels filiform, 3-1 in. long, 
reddish, glandular pubescent, surrounded at the base by 
_a pair of ovate, obtuse, very concave green bracts. Sepals 
ovate, subacute, over 1 lin. long, glabrous except on the 
ciliolate edges, red. Corolla campanulate, opening widely, 
23-34 lin. long, lobes wide rounded, ovate, under 1 lin. 
long, white with the tips of the lobes pink and with rose- 
coloured lines at the base. F%tlaments glabrous, slender, 
about 1 lin. long; anthers $ lin. long. Ovary glandular 
papillose ; style 1} lin. long, not exserted. Capsule de- 
pressed-globose, 1/ lin, long, 14 lin. wide, submuriculate 
towards the apex with short hardened glandular hairs. 
Seeds obliquely oblong or almost ellipsoid, rather pointed, 
very small, pale brown ; testa striate longitudinally. 
Fig. 1, leaves; 2, a young leaf; 3, bract; 4, flower; 5, corolla, laid open; 
6 and 7, stamens; 8, pistil; 9, fruits; 10,a single capsule; 11, seed :—all 
enlarged except 9, which is of natural size. 
