218 ERICACEAE. 



1. E. racemosa (L.) Nutt. Shrub 1-4 m. tall, the twigs glabrous, at least 

 in age: leaf -blades oblong or elliptic, 2-7 cm. long: calyx-lobes triangular, 

 becoming triangular-lanceolate or deltoid-ovate: corolla 8-9 mm. long: anthers 

 much shorter than the filaments: capsules 4-5 mm. wide. — S. Eare, in swamps 

 and lower Susquehanna valley. — Schists. — Spr. — Fetteb-bush. 



6. N£OPIEIMS Britton. Deciduous-leaved shrubs. Leaves alternate: 

 blades entire. Flowers in clusters or leafless branches. Calyx-lobes 5, much 

 longer than the tube. Corolla white or pink, cylindraceous-campanulate, 5- 

 lobed. Filaments appendaged near the top : anthers awnless. Capsules of an 

 ovoid type. 



1, N, mariana (L.) Britton. Deciduous-leaved shrub 1-2 m. tall: leaf-blades 

 membranous, oblong to oval, or broadened upward, 2-6 cm. long, obtuse or 

 apiculate: flower-clusters lateral: calyx-lobes broadly lanceolate, acute: corolla 

 white or pinkish, 10-12 mm. long, less than twice as long as the calyx: cap- 

 sules 7-9 mm. long, rib-angled. — S. Eare, in dry soil or woods. — Schists. — 

 Spr. — Stagger-bush. 



7. ARSENOCOCCUS Small. Deciduous-leaved shrubs with more or less 

 pubescent foliage. Leaves alternate: blades membranous or thickish. Flower- 

 clusters in terminal panicled racemes. Calyx-lobes broad, short, persistent. 

 Corolla urceolate, usually globular or depressed, with very short spreading or 

 recurved lobes. Filaments thickened below the anthers, uuappendaged. Cap- 

 sule depressed, usually spheroidal, not angled. 



1. A. ligustrinus (L.) Small. Desiduous-leaved shrub 1-4 m. tall: leaf -blades 

 oblong, elliptic, or obovate, 3-7 cm. long, entire or indistinctly serrulate: 

 corolla mostly over 3.5 mm. long, not appressed: capsules globular, mainly 3-4 

 mm. wide. — N. S. Common, in dry woods and thickets. — Sandstones and 

 shales, schists. — Sum. — Male-berry. 



8. GAULTHERIA L. Evergreen undershrubs, with rootstocks. Leaves 

 alternate, approximate near the ends of the branches: blades shallowly 

 toothed. Flowers axillary. Calyx-lobes 5, persistent and accrescent. Corolla 

 urceolate, 5-lobed. Filaments dilated near the base, pubescent : anthers awned. 

 Capsule enclosed in the accrescent fleshy calyx. 



1. G. procumbens L. Plants 3-15 cm. tall: leaf -blades oval or elliptic, vary- 

 ing to ovate or obovate, 1.5-6 cm. long, serrate: calyx-lobes ovate: corolla 

 white, 6-7 mm. long; lobes recurved: fruit globular, 7-11 mm. thick, red or 

 white, spicy. — Common, in moist woods. — Sum. — Wintergreen. Creep- 



ING-WINTERGREETSr. CHECKERBERRY. 



Family 4. VACCINIACEAE. Huckleberry Family. 



Shrubs or trees. Leaves alternate : blades simple. Flowers perfect, 

 regular, solitaiy or variously clustered, drooping. Calyx of 4 or 5 sepals. 

 Corolla of 4 or 5 usually partially united petals. Androecium of tAviee as 

 many stamens as there are corolla-lobes. Gynoeeium of several united 

 carpels, the ovary vidioUy inferior or half inferior. Fruit a berry or drupe. 



Ovary 10-celled : fruit a berry-like drupe with 10 nutlets. 1. Gaylussacia. 



Ovary 4-5-celled : fruit a many-seeded berry. 



Petals more or less united : berries blue or black : erect 

 shrub or trees. 

 Anthers exserted, awned : corolla campanulate. 2. Polycodium. 



Anthers Included, awnless : corolla globose, ovoid, urceo- 

 late or cylindric. 3. Vaccinium. 

 Petals distinct : berries red : trailing and creeping under- 



shrubs. 4. Oxycoccus. 



