ORDER 73. ERICACEAE. 199 



pale green and subpubescent beneath ; pedicels secnnd, in leafy racemes : cor. cylin- 

 dric-bell-shaped, rose-white ; antn. 10, included. Woods. S. 8-20f. Fr. black. May,Jn. 



5 V. Vitis-Idcea L. Decumbent, much branched, smooth, evergreen ; Ivs. 4-7-", oval, 



obtuse, thick, margin revolute, pale beneath : fls. solitary or in short clusters, 4-parted ; 

 corolla campanulate. Hills and mts., N. Eng. : rare. June, July. 



6 V. Ulyrsliiites MX. Erect, much branched ; Ivs. small, elliptical, acute at each end, 



glabrous, serrulate ; fls. in small lateral clusters of 25 ; cor. ovoid, nrceolate ; stylo 

 slightly exserted. Woods. S. If. Whole plant often purplish. March, April. 



7 V. myrtilolium MX. St. simple, decumbent at base, from long, creeping roots; 



Ivs. 1 2', cuneate-obovate or oval, pale beneath ; fls. in dense, sessile, lateral clus- 

 ters of 612 ; cor. oblong-cylindric; fr. round, black. Woods, S. If. Mar., April. 



8 V. Canadense Rich. Branches reddish-green, pubescent, leafy ; Ivs. elliptic-lan- 



ceolate, acute at each end ; rac. fasciculate, sessile, snbterminal ; cor. campanulate ; 

 cal. lobes acute. Rocky thickets, N. Eng., and W. & 12'. Berries blue, sweet. May. 



9 V. Pennsylvanicum Lam. Common Low Blueberry. Branches green, with 2 



pubescent lines ; Ivs. 1', crowded, elliptic-oblong, acute at each end, bristly-serrulate, 

 shining ; fls. in short, bracteate, dense rac. Hard soils, Can. to Pa. Ber. blue, sweet. 



/3. nig-rum. Dark green ; berries black and shining, without bloom. 



y. alpinum. Dwarf, decumbent ; Ivs. small (3 4"), narrow-oblanceolate. Mts. 



10 V. vacillans Soland. Low, bushy; Ivs. oval to ovate, acute or mucronate, pale 

 green, dull, glaucous beneath, minutely serrulate ; rac. dense-flowered, preceding the 

 full-grown Ivs. Hilly woods, N. Eng. to Tenn. 1 2$f. Fr. blue-black, sweet. May, Jn. 



1 1 V. corymbosum L. Common High Blueberry. Tall ; flowering branches nearly 

 leafless ; leaves oval to lanceolate, acute or acuminate at each end, entire, pubescent 

 when young, often glaucous beneath ; rac. short, sessile ; cor. cylindrical to ovoid. 

 Low woods. 5 lOf. March June. Varies exceedingly. 



/3. rfrg-ftfttm. Branchlets leafless, covered with rose-colored rac. Sts.virgate. 5f. S. 

 y. a nice nn m, Lvs. oblong ; fls. cylindric, large, roseate ; sty. included ; fr. blk. 8f. 

 6. fnstcdtutn, Lvs. serrulate ; ped. elongated ; sty. exserted ; fls. striped with red. 3f. 

 . glabrum. Plant glabrous throughout, the leaves entire. Rare. 



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

 serrate, veiny, glabrous when old ; flowers in small, sessile fascicles ; corolla small, 

 yellowish; style exserted ; fruit small, black. Swamps, S. If. April +. 



13 V. Ill rsutum Buckley. Whole plant, with fls. and fr., densely hirsute ; Ivs. ovate, 

 entire ; corolla oblong, nearly closed at mouth ; berry round. Mts. of N. Car. If. 



3. OXYCOCCUS, Pcrs. CRANBERRY. Calyx adherent, 4-cleft, Cor. 

 4 parted, with long, narrow, reflexed segments. Sta. 8. Anth. tubular, 2- 

 parted, opening by oblique pores. Berr.ies globous, 4-celled, many-seeded. 

 ) |^ Delicate, with alternate Ivs., red and purple berries on slender ped. 



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



* Stem prostrate, slender. Leaves evergreen, small. Berries acid Nos. 2, 3 



1 O. erytlirocarpns Ell. Lvs. oval, acuminate, thin, ciliate-serrulate ; fls. axillary, 



solitary, the long segments at length reflexed. Mts. of Va. and Car. 1 2f. June. 



2 O. palustrls Pers. Sts. filiform, purple ; Ivs. ovate, entire, revolute on the margin ; 



pedicels terminal, 1-flowered : corolla pink, segments ovate. Alpine bogs, N. 



3 O. macrocarpiis Pers. St. filiform ; Ivs. oblong, obtuse at each end, edges revo- 



lute, glaucous beneath ; pedicels axillary, elongated, 1-flowered ; corolla segm. linear- 

 lanceolate. Sphagnous swamps, Va., and N. Fruit large, valuable. June. 



4, CHIOGENES, Salisb. Calyx 4-cleft, persistent. Cor. broadly cam- 

 panulate, limb deeply 4-cleft. Stain. 8. Anth. cells distinct, awnless on 

 the back, bicuspidalc at apex, opening longitudinally. Ov. adherent. Fr. 



