314 ERICACE^. (heath FAMILY.) 



11. V. ovalifolium, Smith. Straggling, 2-12° high; leaves elliptical, 

 obtuse, nearly entire, pale, mostly glaucous beneath, smooth, corolla ovoid, 

 berries blue. — Peat-bogs, shores of L. Superior, and northwestward. May. 



§ 4. VITIS-ID^A. Corolla, berry, etc., as in § 3 ; filaments hairy ; anthers 

 awnless ; leaves coriaceous and persistent ; fioicers in clusters from separate 

 buds, -^-merous {in our species) ; mostly glabrous ; leaves 3-6" long. 



12. V. Vitis-Idsea, L. (Cowberry. Mountaix Cranberry. Fox- 

 berry.) Low (6-10' high) ; branches erect from tufted creeping stems ; leaves 

 obovate with revolute margins, dark green, smooth and shining above, dotted 

 with blackish bristly points underneath ; corolla bell-shaped, 4-cleft ; berries 

 dark red, acid and rather bitter, edible when cooked. Coast and mountains of 

 N. Eng. to N. shore of L. Superior, and far northward. June. (Eu.) 



§ 5. OXYCOCCUS. Corolla deeply 4-pa7-ted or -cleft, with linear refiexed 

 lobes; anthers exserted, awnless, with very long terminal tubes; berry 4- 

 celled ; flowers axillary or terminal, nodding on long filiform pedicels. 



* Stem upright and leaves deciduous, as in common Blueberries ; flowers axillary 

 and solitary ; corolla deeply 4-cleft ; berries light red, turning purple, insipid. 



13. V. erythrocarpon, Michx. Smooth, divergently branched (1-4° 

 high) ; leaves oblong-lanceolate, taper-pointed, bristly serrate, thin. — Damp 

 woods, higher Alleghanies, Va. to Ga. July. 



* * Stems very slender, creeping or trailing ; leaves small, entire, whitened be- 



neath, evergreen ; pedicels erect, the pale rose-colored flower nodding ; cofolla 

 4-parted ; berries red, acid. — Cranberries. 



14. v. Oxycoccus, L. (Small Cranberry.) Stems very slender (4- 

 9' long) ; leaves orate, acute, with strongly revolute margins (2-3" long) ; pedi- 

 cels 1-4, terminal ; filaments fully ^ as long as the anthers. — Peat-bogs, N. 

 Eng. and Penn. to Minn., and northward. June. — Berry 3-4" broad, often 

 speckled with white when young ; seldom gathered for market. (Eu., Asia.) 



15. v. macrocarpon, Ait. (Large or American Cranberry.) Stems 

 elongated (1-4° long), the flowering branches ascending ; leaves oblong, obtuse, 

 less revolute (4 - 6" long) ; pedicels several, becoming lateral , filaments scarcely 

 one third the length of the anthers. — Peat-bogs, N C. to Minn., and every- 

 where northward, but scarcely westward. June. — Berry i - 1 ' long. 



3. CHIOGENES, Salisb. Creeping Snowberry 



Calyx-tube adherent to the ovary ; limb 4-parted, persistent. Corolla bell- 

 shaped, deeply 4-cleft. Stamens 8, included, inserted on an 8-toothed disk , 

 filaments very short and broad ; anther-cells ovate-oblong, separate, not awued 

 on the back, but each minutely 2-pointed at the apex, and opening by a large 

 chink down to the middle. Berry white, globular, rather dry, 4-celled, many- 

 seeded. — A trailing and creeping evergreen, with very slender and scarcely 

 woody stems, and small Thyme-like, ovate and pointed leaves on short petioles, 

 with revolute margins, smooth above, the lower surface and the branches beset 

 with rigid rusty bristles. Flowers very small, solitary in the axils, on short 

 nodding peduncles, with 2 large bractlets under the calyx. (Name from x'^''. 

 snow, and y4vos, offsprinq, in allusion to the snow-white berries.) 



