370 LXXVIII. ERICACEAE. OXYCOCCUS. 



10. V. FRONDOSUM. Willd. (V. glaucum. Mr.) Blue Tangles. High 

 Blueberry. -^-Lvs. oblong-obovate, obtuse, entire, glaucous beneath, covered 



with minute, resinous dots ; rac. loose, bracteate ; pedicels filiform, bracteate 

 near the middle ; cor. ovoid-campanulate, including the stamens. Grows in 

 open woods, N. Eng. to Car. A shrub 3 5f high, with round, smooth and slen- 

 der branches. Leaves twice as long as wide, tapering to each end but broadest 

 in the upper half, the margin slightly revolute. Racemes lateral, few-flowered. 

 Pedicels 5 10" in length. Flowers small, nearly globose, reddish- white, suc- 

 ceeded by large, globose, blue and sweet berries, covered with a glaucous bloom 

 when mature. May, June. 



11. V. CANADENSE. Rich. Canadian Blueberry. 



Branches reddish-green, pubescent, leafy ; Ivs. subsessile, elliptic-lanceo- 

 late or oblong, acute at each end, villose beneath, tomentose on the veins above, 

 entire ; rac. fasciculate, sessile, subterminal ; corymb campanulate ; col. lobes 

 acute. A shrub 8 12' high, not uncommon in rocky fields and thickets, N. H. ! 

 Me. ! to Hudson's Bay and to the Rocky Mts. Leaves 8 12" by 35". Flow- 

 ers about 3" long. Style and stamens included. Berries blue and sweet, simi- 

 lar to those of V. tenellum. May. 



12. V. DUMOSUM. Andrews. (V. frondosum. Michx. V. hirtellum. Bw.~) 

 Branchlets, Ivs. and pedicels sprinkled with minute bristles and resinous 



dots ; Ivs. obovate-oblong, subsessile, subcoriaceous, obtuse, mucronate, entire or 

 ciliate-serrulate ; rac. bracted with small, floral leaves ; pedicels bracteolate in 

 the middle ; cor. cylindric-campanulate, including the stamens and style. 

 Swamps and thickets, Uxbridge, Mass. Bobbins ! S. to Flor. A small shrub 

 If high, with leafy racemes. Leaves about 16" by 7", cuneate at base, shining 

 but minutely hispid above. Flowers white or purplish, each from the axil of a 

 small, roundish-ovate leaf. Berries black, insipid, large (shining, Don., 

 hairy, Bw). 



2. OXYCOCCUS. Pers. 



Gr. ovs, acid, KOKKOS, berry. 



Calyx superior, 4-cleft ; corolla 4-parted, with sub-linear, revolute 

 segments ; stamens 8, convergent ; anthers tubular, 2-parted, open- 

 ing by oblique pores ; berry globose, many-seeded. Slender^ prostrate 

 shrubs, with alternate, coriaceous Ivs. and eatable fruit. 



1. O. PALUSTRIS. Pers. (O. vulgaris. Ph. and 1st. edit. Vaccinium Oxy- 

 coccus. Linn.) Common Cranberry. St. filiform, prostrate ; Ivs. ovate, 



entire, revolute on the margin ; pedicels terminal, 1-flowered ; segments of the 

 corolla ovate. A prostrate under shrub, found in alpine bogs, Can. and N. 

 States. Stems creeping extensively, smooth, purple, with erect branches. 

 Leaves somewhat remote, 2 3' long, and half as wide, smooth and shining 

 above, paler beneath. Flowers several together on the summits of the branches. 

 Pedicels red, an inch in length, with 2 nearly opposite bracts in the middle. 

 Corollas light pink, the 4 segments abruptly reflexed. Stamens purple. Fruit 

 smaller than in the next species, crimson, ripe in Oct. Flowers in June. 



2. O. MACROCARPUS. Pers. (V. macrocarpon. Ait.) Larger Cranberry. 



St. creeping, filiform; Ivs. oblong, scarcely revolute, obtuse, glaucous be- 

 neath ; pedicels axillary, elongated, 1-flowered ; segments of the corolla linear-lan- 

 ceolate. A prostrate, shrubby plant, in sphagnous swamps and meadows. 

 Stems 8 15' in length, brown, with ascending branches. Leaves numerous, 

 4 6" by 2 3", rounded at each end, on very short petioles, smooth both sides, 

 subentire. Flowers flesh-colored, pedicels 5 15" long, solitary in the axils of 

 the upper leaves, the 4 segments generally abruptly reflexed. Berry large, bright 

 scarlet, ripe in Oct. Flowers in June. 



3. CHIOGENES. Salisb. 



Gr. %ton>, snow, yi'of, offspring; in allusion to its evergreen habit. 



Calyx 4-cleft, persistent ; cor. broadly campanulate, limb deeply 4- 

 cleft ; stam. 8, included, anth. fixed by the base, the 2 cells awnless 



