Vacchilum. ERICACE^. 23 



more or less pubescent when young, sometimes perfectly glabrous (var. glahrum, Gray, 

 Man.), and commonly soon becoming so; the leaves with naked entu'e margins. There 

 are numerous gradations between tlie following forms : — 



Var. amcenum, Gray, a form with ciliate-serrulate or bristly-ciliate leaves, rather 

 bright green both sides: pubescence slight or sparse. — Man. ed. 5, 292. V. aiuoenuin, Ait. 

 1. c. ; Andr. Bot. I\ep. t. 138 ; Bot. Reg. t. 400. V. corymhusum, var. fascatuin, Hook. Bot. 

 Mag. t. 34.3.3? V. ^[a^^ianuln, (jrandljiorum & cloiyalum, Wats. Dendr. Brit.? — Mainly in 

 the Middle Atlantic States. 



Var. pallidum, Gray, 1. c, a pale and very glaucous or glaucescent form, with or 

 without some pubescence, generally low ; otherwise nearly as in the preceding. — I '. pid- 

 lidum, Ait. 1. c. ; Gray, Man. ed. 1, 262. V. alhifiwam, Hook. Bot. Mag. t. 3428. V. Von- 

 slabUei, Gray in Am. Jour. Sci. xlii. 42; Chapm. 1. c. — Common through the AUeghanies 

 southward, mostly on the tops of the liigher mountains, and 2 to 4 feet high. 



Var. fuscatum, a tall form, witli the mature and entire leaves fuscous-pubescent 

 beneath: flowers virgately somewhat spicate on the naked flowering twigs. — V. fuscatum, 

 Ait. 1. c. — Alabama and Florida to Arkansas and Louisiana. 



Var. atrococcum, Gray, 1. c, the most distinct form, with the permanently and at 

 length rusty pul)csfent leaves of the foregoing, but with a more ditfuse habit, rather 

 smaller flowers, and berries purplish-black, without any bloom. — \'. fuscatum. Gray, Man. 

 ed. 1, 262. V. disocarpum, Bigelow, Bost. ed. 2, 151. — Common from N. England to Peun. 



++ ++ Ovary and berry glandular-hirsute: bracts less scarious and more persistent. 

 V. hirsutum, Buckley. A foot or two high : branchlets, entire ovate leaves, and even 

 the ovoid-campanulate corolla pubescent with soft and sliort ijersistent spreading hairs : 

 style liairy : hirsute berries bluish-black. — Am. Jour. Sci. xlv. 175; Chai)m. 1. c. — Moun- 

 tains of Cherokee Co., N. Carolina, Buckley. Hare and little known : the local name is 

 Bear Hlckleberky. 



§ 3. EuvACCiNiUM, Gray. (Bilberry.) Corolla from ovate to globular and 

 more or less urceolate, 4-5-toothed, rose-color or nearly white : filaments glabrous : 

 anthers 2-awned on the back, included: ovary and berry 4-5-celled, with no false 

 partitions : leaves deciduous : Howers on drooping pedicels, solitary or two to 

 four together, developing with or soon after the leaves. 



* Flowers 2 to 4 in a fascicle, or sometimes solitary, from a distinct scaly bud, in the manner of 

 Cywcot'c;w, more connnonly 4-nierous and S-androus: leaves quite entire, and usually almost 

 sessile : limb of the calyx deeply i-o-parted : berries blackish-blue with a bloom. 



V. uliginosum, L. A span to a foot or two higli, nmch branched, glabrous or minutely 

 puberulent : leaves thickish, mostly pale or glaucescent, obovate, oval, or oblong-cuneate, 

 obtuse or rctuse, reticulate-veiny, especially' beneath, half inch or more long : corolla ovate- 

 or globular-urceolate : berry proportionally large, sweetish. — Fl. Dan. t. 581 ; Reichenb. 

 Ic. Germ. xvii. t. 1168. T'. pubcscens, Hornem. Fl. Dan. t. 1516. V. i/aultheriotdes, Bigcl. — 

 Arctic America to the alpine region of the mountains of New England, New York, and 

 shore of Lake Superior, westward to Oregon and Alaska. (Eu., Asia.) In our northern 

 regions low, in Oregon sometimes even 4 feet high. 



Var. mucronatum, Herder. Depressed-cespitose : leaves small, bright green 

 both sides, conspicuously reticulated, usually roundish, abruptly mucronate or cuspidate. 

 — Alaska and Aleutian Islands to Behring Straits. 



V. OCCidentale, Gray. A foot or more high, glabrous : leaves thinner, glaucescent, 

 obscurely veiny, from oval to obovate-oblong or oblanceolate, obtuse or acutisli (half to 

 three-fourths inch long) : flower mostly solitary from the scaly bud : corolla oblong-ovate 

 (1 or 2 lines long) : berry small, barely 3 lines in diameter. — Bot. Calif, i. 451. — Sierra 

 Nevada of California at 5-7000 feet, from Mariposa to Mt. Shasta, and Uinta Mts., Utah. 



V. salicinum., Cham. Depressed-cespitose : leaves cuneate-lanceolate and acuminate 

 (4 to 8 lines long), tapering into a kind of petiole, bright green, coarsely reticidated beneath, 

 entire : flowers solitary : " corolla cylindraceous-urceolate, 3 lines long." — Spreng. Syst. 

 Cur. Post. 147, & Linn. i. 525 (not Aschers. in Flora, 1860, 309). — Unalaschka, in moss, 

 Chamisso. Perhaps this is only a remarkably narrow-leaved form of V. uliyinosum, var. 

 mucronatum. 



