VACCINIUM VACCINIACEZ 411 
VY. uliginosum L. Sp. 350. Glabrous or minutely puberulent: stem 
stiff, much branched, 6- 24 inches high: leaves thickish, mostly pale or 
glaucescent, obovate oval or oblong-cuneate, obtuse or retuse, reticulate- 
veiny especially beneath, 5-12 lines long: corolla urn-shaped, globular or 
ovate, solitary or 2-4 together: berries dark blue with a bloom, 3-4 lines in 
diameter, sweet. Summits of the high mountains of Oregon to Alaska and 
across the Continent. Also in northern Europe and Asia. 
Var. mucronatum Herder. .Depressed-cespitose: leaves small, 
bright green both sides, conspicuously reticulated, usually roundish, 
abruptly mucronate or cuspidate. Along the coast, southern Oregon to 
Alaska. 
VY. occidentale Gray Bot. Cal. i, 451. Glabrous shrub, 1-3 feet high: 
leaves rather thin, glaucescent, obscurely veiny, from oval to obovate-ob- 
long or oblanceolate, obtuse or acutish, 6-9 lines long: flowers mostly soli- 
tary: corolla oblong-ovate: berries small, 2-3 lines in diameter. In high- 
mountain marshes, Washington to California and Nevada. 
* * Flowers.solitary in the earliest axils, usually 5-merous-and., 
-10-androus: calyx less deeply or very slightly lobed. 
+ Dwarf and cespitose: branchlets not angled. 
VY. cxspitosum: Michx. Fl. i, 234. Glabrous or nearly so 3-7 inches” 
high: leaves from obovate to cuneate-oblong, obtuse or rarely acutish thick- 
ly serrulate, bright green both sides, reticulate-veiny; corolla ovate or 
ovoid-oblong: berries large, blue with a bloom, sweet. On the highest 
Mountains, Washington to Alaska and across the Continent. 
Var. cuneifolium Nutt. Proc. Am. Phil. Soc. viii, 262. Stem 8-12 
inches high, bushy: leaves spatulate-cuneate with rounded apex to spatu- 
late-lanceolate and acute, the earliest not rarely entire. Mountains of Brit. 
Columbia to California, Colorado, Utah and Lake Superior. 
VY. arbuscula. V. cxspitosum var. arbuscula Gray. Stem erect, 6-18 
inches high, much branched: leaves obovate, 5-7 lines long, thickish, pale 
green: corolla oblong-ovoid : berries 2-3 lines in diameter, dark blue with 
a bloom, sweet. In open pine forests, Alaska to California. 
+ + Low: branches sharply angled and green : leaves small. 
VY. Myrtillus L. Sp. i, 349. ‘‘ A foot or less high, glabrous: leaves 
ovate or oval, thin, shining, serrate. conspicuously reticulated-veiny, and 
with a prominent narrow midrib ( in ours half to two-thirds inch long ): 
limb of calyx almost entire: corolla globular-ovate: berries black, nodding. 
Alaska to Idaho and the Rocky Mountains, Eu., Asia. ”’ 
VY. microphyllum. V. Myrtillus var. microphyllum Hook. Stem 
erect, with numerous slender strict green branches and branchlets, 3-18 
inches high: leaves ovate or oval, 2-4 lines long, bright green : corolla ovate, 
a line long: berries 1-2 lines in diameter, bright red, sweet. On the high- 
est mountains, Washington to California and the Rocky Mountains. 
+ + + Mostly tall with spreading branches. 
VY. membranaceum Dougl. Hook. Fl. ii, 32. V. myrtilloides Hook. 
not of Michx. Glabrous or glabrate, 1-5 feet high, with erect slightly an- 
gled branchlets: leaves ovate or oval to oblong, sharply serrulate, mem- 
branaceous, green both sides but not shining, loosely reticulate-veiny, 1-2 
inches long, the larger and later ones mostly acute or acuminate: limb of 
the calyx entire: corolla depressed-globular or semi-globose-urceolate: ped- 
icels erect in fruit: berries 3-4 lines in diameter, purplish-black, sweet. 
On the high mountains, Alaska to California, and east to Lake Superior. 
Var. rigidum Hook. Branchlets slightly pubescent and more com-— 
