290 ERICACEAE. (HEATH FAMILY.) 



* * Stem upright and leaves deciduous, as in common Blaberries: flowers axillary 

 and solitary : corolla deeply 4-cle/l : berries turning purple, insipid. 



3. V. erythrocarpon, Michx. Smooth, divergently branched (l°-4° 

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

 hills, mountains of Virginia and southward. July. 



§ 2. VITIS-IDJDA, Tourn. Ovary 4-5-celled: corolla bell-shaped, 4-5-lobed: 

 anthers 8-10, awnless: filaments hairy : flowers in short and bracted nodding 

 racemes : leaves evergreen : berries red or purple. 



4. V. Vitis-Idaea, L. (Cowberry.) 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 ; co- 

 rolla bell-shaped, 4-cleft. — Higher mountains of New England, also on the 

 coast of Maine, and at Danvers, Massachusetts (Oakes). and northward. June. 

 — Berries dark red, acid and rather bitter, mealy, barely edible. (Eu.) 



§3. PICROC6CCUS, Nutt. Ovary more or less \0-celled by false partitions : ber- 

 ries greenish, hardly edible, ripening Jew seeds: corolla open-bell-shaped, 5-lobed: 

 anthers 10, extended into very long much exserted tubes, 2-awned on the back: flow- 

 ers on slender pedicels, singly in the axils of the upper leaves or leaf-like bracts, 

 forming leafy racemes, not articulated : leaves thin, deciduous. 



5. V. stamineum, L. (Deerberry. Squaw Huckleberry.) Dif- 

 fusely branched (2° -3° high), somewhat pubescent; leaves ovate or oval, pale, 

 glaucous or whitish underneath ; corolla greenish-white or purplish ; berries 

 globular or pear-shaped, large, greenish, mawkish. — Dry woods, Maine to 

 Michigan and southward, mainly eastward. May, June. 



§4. BATODENDRON, Nutt. Ovary more or less 10-celled by false partitions : 

 berries black: corolla short-bell-shaped, 5-toothed: anthers 10, included, conspicu- 

 ously 2-awned on the back, and extended into slender tubes : filaments hairy : flow- 

 ers on slender pedicels singly in the axils of coriaceous shining leaves, or racemed 

 at the end of the branches, articulated just below the ovary! 



6. V. arb6reum, Marshall.. (Farkle-berry.) Tall (8° -15° high), 

 smoothish; leaves oval or obovate, entire or denticulate, mucronate, bright 

 green and shining above, at the South evergreen ; corolla white ; berries mealy, 

 insipid, ripening late. — Dry ground, Makanda, S. Illinois {Dr. Vasey), proba- 

 bly also in Virginia, and southward. June. 



§ 5. EUVACCf NIUM. Ovary 4 - 5-celled, with no trace of false partitions : corolla 

 urn-shaped or globular, 4 -5-toothed: anthers 2-awned on the back: filaments 

 smooth : flowers axillary, solitary, or 2 or 3 together : berries blue or black, edible : 

 northern or alpine plants, with deciduous leaves. 



* Parts of the flower mostly in fours: stamens 8. 



7. V. uligindsum, L. (Bog Bilberry.) Low and spreading (4' -18' 

 high), tufted ; leaves entire, dull, obovate or oblong, pale and slightly pubescent 

 underneath; flowers single or 2-3 together from a scaly bud, almost sessile; 

 corolla short, urn-shaped ; berries black with a bloom, sweet. — Alpine tops of 

 the high mountains of New England and New York, shore of Lake Superior, 

 and northward. (Eu.) 



