24 ERICACEJj:. Vacdmum. 



* * Flowers solitary in the earliest axils, usually 5-merous and lO-androus : calyx less or very 

 iligiitly lobtd. 



•(— Dwarf and cespitose : branches not angled. 



V. casspitosum, Michx. Glabrous or nearly so, 3 to 6 inches high : leaves from obo- 

 vate to funeate-oblong, obtuse or rarely acutish, thickly serrulate, bright green both sides, 

 reticulate-veiny (one to three-quarters inch long): corolla ovate or ovoid-oblong: berry 

 proportionally large, blue with a bloom, sweet. — Hook. Fl. ii. 33, t. 120 ; & Bot. Mag. t. 

 3-129. — Hudson's Bay and Labrador, alpine summits of White Mountains of New Hamp- 

 shire, and Colorado Rocky Mountains to Alaska. 



Var. arbusctlla. Erect and a foot high, much branched: leaves obovate, thicker, 

 little exceeding half an inch in length : flowers and berries rather smaller. — Sierra 

 Nevada, California, in Plumas Co., AIis. Austin. In Oregon passes into the ordinary form 

 and into the following. 



Var. cuneifolium, Nutt. A span to near a foot high, bushy : leaves spatulate- 

 cuneate and with rounded apex, passing in one form (var. anijustlfolium, Gray, Proc. Am. 

 Acad. viii. 393) to spatulate-lanceolate and acute; the earliest not rarely entire. — Mem. 

 Am. Phil. Soc. n. ser. viii. 262. — Mountains of Colorado and Utah to California, British 

 Columbia, and east to Lake Superior. 



-1— H— Low : branches sharply angled and green : leaves small. 



V. Myrtillus, L. (Whortlebekrv, Bilberhv.) 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. — Sclik. Handb. t. 107 ; Reichenb. Ic. Germ. I.e. 

 t. 11G9; Hook. Fl. ii. 3-3. V. mi/iiilloicles, Watson, Bot. King Exp. 209, not of others.— 

 Rocky Mountains, extending as far south as Colorado and N. E. Utah, and north-west to 

 Alaska. (Eu., Asia.) 



Var. microphyllum, Hook. 1. c. ; a remarkable diminutive form, 3 to 6 inches 

 high: leaves 2 to 4 lines long: ccn'oUa proportionally small, a line long: berries at first 

 "light red." — Higher Rocky Mountains, south to Colorado and Utah, and in the Sierra 

 Nevada, California, down to 7000 feet. 



-)—-»—-)— Mostly taller or tall, with spreading branches. 



V. myrtilloides, Hook. (Gray). Glabrous or glabrate, 1 to 5 feet high : branchlets 

 slightly angled: leaves ovate or oval and oblong, sharply serrulate, membranaceous, green 

 both sides, but not shining, loosely reticulate-veiny, an inch or two long, the larger or later 

 mostly acute or acuminate : limb of calyx entire : corolla dejjressed-globular or semi- 

 globose-urceolate (nearly 2 lines long and broad, j'ellowish or greenish-white with a purjile 

 tinge): pedicel erect in fruit: berry iiurplish-black, rather acid. — Gray, Man. ed. 5, 291. 

 V. iiii/rlilloldes, partly, Hook. Fl. ii. 32, & Bot. Mag. t. 3477 (excl. syn. Ait., tScc. and var. 

 rif/iditm), not Michx. ! (which is T'. Peiinsi/lranicum, var. amjustijuliuw). V. meinhnuiciceiim, 

 Dougl. ined. ; Torr. Bot. Wilkes Exp. 377, the larger-leaved coast form ( V. miji-tilloldts, var. 

 vieniliraiKiccitm, Hook. 1. c). — Dam2> woods, Lake Superior to the coast of Oregon and 

 British Colund)ia. — There is nothing to prevent the retention of this specific name, 

 going back only to Hooker, and excluding the original of Michaux. 



V. OValifblium, Smith. Glabrous and glaucescent, 4 to 12 feet high, straggling: 

 branchlets more or less angled : leaves oval, mostly obtuse or rounded at both ends, merely 

 nnicronulate, entire or with a few irregular serraturcs, pale or glaucous, at least beneath 

 (one or two inches long): corolla globose-ovoid: pedicel nodding in fruit: berries blue 

 with a bloom. — Rees Cycl. 1. o. ; Hook. Fl. ii. 3.3, t. 127; Gray, Man. 1. c. V. C/uimissoniii, 

 Bong. Sitk. 52.5. — Woods, Lake Superior (on the south shore, Rubbiits), and Oregon to 

 L'nalaschka. (Japan.) 



V. parvifolium, Smith, 1. c. Glabrous, glaucescent, 6 to 12 feet high and straggling : 

 branches and branchlets slender, sharpl}' and conspicuously angled, green, articulated: 

 leaves oblong or oval, obtuse or rounded at both ends, pale and dull, especially beneath, 

 entire, one to three-quarters inch long: calyx 5-lobed : corolla globular: pedicel nodding 

 in fruit: berries light red, rather dry, liardly edible. — Hook. 1. c. t. 128. — Shad}' and low 

 woods, northern part of California, near the coast, to Alaska and Aleutian Islands. 



§ 4. Vitis-Id^'a, Koch. Corolla, ovary, &c., as in the preceding section : 

 filaments hairy : anthers awnless (at least in ours) : leaves coriaceous and per- 



