Order T 3.— ERICACEAE. 483 



3" long. Sty. and stam. includod. Berries bluo and sweet, similar to those of 

 No. 9. May. 



9 V. Pennsylvanicum Lam. Common Low Blueberry. — Branches green, 

 with 2 pubescent lines; lvs. subsessilo, crowded, elliptic-oblong, acute at each 

 cud, minutely serrulate, thin, glabrous, and shining, with the veins beneath pube- 

 rulent; 113. in short, bracteate, dense, subterminal racemes; cor. ovoid-cylindrical 

 — Thickets and pastures in hard soils, Can. to Penn., common in N. Eng. A low 

 under-shrub, 6 — 12' high, growing in dense patches. Leaves 8 — 12" by 4 — 6". 

 Flowers reddish-white, 3'' long. Bracts mostly colored. Berries large, bluis, 

 sweet and nutritious. May. (V. tenellum Ph.) 



/?. NIGRUM. Lvs. dark green ; berries black and shining, destituto of bloom. — 



With variety a. (V. ligustrinum Ph. ?) 

 y. alpinuji. Dwarf, decumbent; lvs. very small (3 to 4" long), narrow-ob- 



lanceolate. — Summits of the "White- Mts. with No. 5 (V. angustilblium Ait.) 



10 V. vacillans Poland. Low, bushy; lvs. oval, elliptical or ovate, acute or 

 mucronate, pale green, dull, glaucous beneath, at length glabrous, minutely serru- 

 late ; rac. dense-flowered, preceding the full-grown lvs. ; fls. a little longer than 

 the pedicels; cor. ovoid-eylindric, slightly contracted at the mouth. — Hilly wood- 

 lands, N. Eng., N. Y., Penn. to Clinch Mt., Tenn. Shrub 1 to 2 if high, with 

 greenish branches. Lvs. 1' to 18" long, corolla 4", reddish white. Berries 

 bluish black, sweet. May, Jn. 



11 V. corymbds"un.i L. Common High Blueberry. Tall ; flowering branches 

 nearly leafless; lvs. oblong-oval or elliptical-lanceolate, acute or acuminate at eaclt, 

 end, entire, pubescent when young, often glaucous beneath; rac. short, sessile; cor. 

 ovoid-cylindrical. — A tall shrub, 5 to 1 Of high, growing in shady swamps, copses, 

 hedges, &c. Can. to Fla. Branches green or purplish. Lvs. 1 to 2' long, usu- 

 ally with a slight pubescence on the veins beneath. Fls. numerous, nodding, 

 generally appearing iu advanco of tho leaves. Corolla large for the genus (5" 

 long) purplish white. Stam. included, sty. often exserted. Berries large, black, 

 often with a tinge of purple, subacid. Mar. — Jn. — Varies exceedingly. Some 

 of its more striking varieties are 



/?. virgatum. Branches short, entirely naked when in flower; rac. numerous, 

 cor. oblong-ovoid, angular, bright rose-color. — Common southward. Sts. 4 

 to 6f high (V. virgatum Ph. ?) 



y. AMCENUM. Lvs. oblong; cor. cylindrical, large, reddish white; style in- 

 cluded. — Shrub 6 to lOf high. Berries black. 



&. fusgatum. Lvs. serrulate, glabrous; pedicels elongated ; style exserted. — 

 A smaller shrub with corollas red and white, striped. Calyx brown. 



f. glabrum. Plant glabrous throughout. — Not common. 



12 V. galezans Mx. Flowering branches leafy; lvs. sessile, cuneate-lanceolate % 

 subserrate, veiny, glabrous when old; fls. in small, sessile fascicles; cor. ovoid., 

 much contrasted at tho mouth ; stylo exserted. — Swampy woods, Va. (Pursh) to 

 Ga. and La. Sts. If to 18' high, green with a reddish or yellowish tinge. Young 

 lvs. also reddish. Cor. small, yellowish white. Berries small, black. A few lvs. 

 are sometimes persistent. Apr., May. 



13 V. hirsutum Buckley. Whole plant, with fls. and fruit, densely hirsute ; rac. 

 small, axillary and terminal ; lvs. deciduous, ovate, entire, mucronate, subsessilo, 

 cor. oblong, nearly closed at throat, with 5 short teeth ; anth. awnless, included : 

 fil. and style hairy ; berry globous, oo-seeded. — Mts. N. Car. (Buckley). Bush 

 much branched, If high. 



3. OXYCOCXUS, Pers. Cranberry. (Gr. o^vg, acid, KOKKog t 

 berry.) Calyx adherent to the ovary, 4-cleft ; corolla 4-parted, with 

 narrow, reflexed segments ; stam. 8, convergent ; anthers tubular, 2- 

 parted, opening by oblique pores; berry globous, 4-cclled, many-seeded. 

 — Shrubs, with alternate lvs. and red and purple berries. 



* Stem erect, with membranous, decidons leaves. Berries sweetish No. 1 



* Stem prostrate, slender; leaves evergreen, small. Berries acid, Nos. 2, >i 



1 O. erythrocarpus Ell. Lvs. oval, acuminate, thin, ciliate-serrulate ; fls. axil- 

 lary, solitary, the long segments at length reflexed. — Mts. of Va. and Car. Sts- 



