OBDEB 73. ERICACEAE. 493 



3" long. Sty. and stam. included Berries blue and sweet, similar to those of 

 No. 9. May. 



V. Pennsylvanicum Lam. COMMON Low BLUEBERRY. Branches green, 

 with 2 pubescent lines; Ivs. subsessile, crowded, elliptic-oblong, acute at each 

 end, minutely serrulate, thin, glabrous, aod shining, with the veins beneath pube- 

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

 Thickets and pastures in hard soils, Can. to Penu., 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, blue, 

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



p. NIGRUJI. Lvs. dark green ; berries black and shining, destitute of bloom. 



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

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



lanceolate. Summits of the White Mts. with No. 5 (V. angustifolium Ait.) 



10 V. vacillans Poland. Low, bushy; Ivs. 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 Ivs. ; fls. a little longer than 

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

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

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

 bluish black, sweet. May, Jn. 



11 V. corymbosum L. COMMON HIGH BLUEBERRY. Tall; flowering branches 

 nearly leafless ; Ivs. oblong-oval or elliptical-lanceolate, acute or acuminate at each 

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

 ovoid-cylindrical. A tall shrub, 5 to lOt'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 pubcscenco on the veins beneath. Fls. numerous, nodding, 

 generally appearing iu advance of the 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 



(3. VIRGATUM. Branches short, entirely naked when in flower; rae. numerous, 

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

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



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

 cluded. Shrub 6 to 1 Of high. Berries black. 



6. FUSCATUM. Lvs. serrulate, glabrous ; pedicels elongated ; style exserted. 

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



f. GLABRUM. Plant glabrous throughout. Not common. 



12 V. galezans MX. Flowering branches leafy; Ivs. sessile, cuneate-lanceolate, 

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

 much contracted at the mouth ; stylo exserted. Swampy woods, Va. (Pursh) to 

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

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

 are sometimes persistent. Apr., May. 



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

 small, axillary and terminal; Ivs. deciduous, ovate, entire, mucronate, subsessile, 

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

 fll. and stylo hairy ; berry globous, oo-seeded. Mts. N. Car. (Buckley). Bush 

 much branched, If high. 



3. OXYCOC'CUS, Pers. CRANBERRY. (Gr. o%i>$, acid, KOKKOC, 

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

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

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

 Shrubs, with alternate Ivs. and red and purple berries. 



* Stem erect, with membranous, decidons lenvos. Rerries sweetish No. 1 



* Stem prostrate, slender ; leaves evergreen, small. Berries neid Nos. 2, 3 



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- 



