170 FOUNDATIONS OF BOTANY 



1. G. frondosa, Torr. and Gray. Taxgleberry. An erect shrub, 

 1-3 ft. high; bniiiches spreading, slender, gray, slightly downy. 

 Leaves entire, oblong or obovate, obtuse, thin, smooth and green 

 above, paler, downy, and with resinous dots beneath ; petioles short. 

 Racemes few-flowered. Corolla small, greenish-pink, short-bell- 

 shaped; bracts small, oblong, shorter than the pedicels. Berry 

 depressed-globose, dark blue, with bloom, sweet, about ^ in. in 

 diameter. On low ground.* 



2. G. resinosa, Torr. and Gray. Huckleberry. A much- 

 branched, stiff shrub, 1-3 ft. high, slightly downy when young. 

 Leaves oval or oblong, rarely obovate, obtuse or nearly so, entire, 

 covered when young with little resinous particles. Flowers in short, 

 one-sided racemes. Corolla at first conical-ovoid, becoming after- 

 ward nearly cylindrical, pink or reddish. Fruit (in the typical 

 form) black, with no bloom, sweet, the seed-like nutlets rather large. 

 Woods and pastures in sandy soil. 



VII. VACCINIUM, L. 



Shrubs or small trees. Leaves entire or serrulate, often 

 leathery and evergreen. Flowers terminal or lateral, clus- 

 tered or solitary, nodding. Pedicels 2-bracteolate. Calyx- 

 tube globose or hemispherical, 4-5-lobed, persistent. Corolla 

 urn-shaped, cylindrical or bell-shaped, 4-5-lobed. Stamens 

 twice as many as the lobes of the corolla, anthers awned or 

 awnless. Ovary 4-5-celled, each cell partially divided by a 

 partition, which makes the ovary appear 8-10-celled ; style 

 slender ; stigma simple. Fruit a many-seeded berry.* 



1. V. corymbosum, L. High-bush Blueberry. An erect shrub, 

 6-12 ft. high ; branches stiff, young twigs minutely warty. Leaves 

 deciduous, oval to ovate-lanceolate, acute, margins bristly, serrulate, 

 smooth or downy, short-petioled. Racemes numerous, appearing 

 with or before the leaves. Bracts oval or oblong, deciduous. 

 Flowers white or pink. Corolla almost as long as the pedicel, 

 cylindrical. Berry globose, blue or black, flavor slightly acid, pleas- 

 ant. Common in woods and thickets, whole plant extremely variable.* 



2. V. pennsylvanicum, Lam. Dwarf Blueberry, Low Blue- 

 berry. Low (usually 0-12 in. high, sometimes 2 ft. high) and 

 smooth, with warty, green branches. Leaves oblong or oblong- 

 lanceolate, sharply serrate, with little bristle-pointed teeth, both 

 sides smooth and shining except for down occasionally on the mid- 

 rib and veins below, pointed at both ends. Flowers few in a clus- 

 ter, longer than their minute pedicels. Corolla oblong, bell-shaped, 



