198 PBAGTIOAL BOTANY. 



513. Anthers opening at the apex .513 



Anthers opening lengthwise down to the middle, 

 awnless. Filaments very broad and short. Calyx and 

 corolla 4-cleft, the latter bell-shaped, white. Beriy globu- 

 lar, 4-celled, many-seeded, i inch broad, bright white. A 

 trailing evergreen. Leaves short-petioled, ovate, pointed, 

 with revolute margins, small, their lower surface, like the 

 branches, clothed with rusty bristles. Flowers very small, 

 short-peduncled, nodding, bicracteolate, solitary, axillary. 



Chiogenes hispidula, Torr.,#iGrr. 



513. Ovary 10-celled,10-ovuled. Flowers 5-merou8^ white 

 or reddish, small, in lateral, bracted racemes. Stamens 10 ; an- 

 thers awnless, the cells prolonged upward into tubular beaks, 

 opening at the apex. Drupe berry-like, globular, 10-celled, 

 10-seeded, black or dark-blue, sweet. Leaves often resinous- 

 dotted beneath. Gaylussacia, H. B. K. 



Ovary 4- or 5- or spuriously 8- to 10-celled, many- 

 ovuled. Flowers 4- or 5-merous 514 



514. Stems usually trailing. Flowers 4-merous. Corolla 

 with narrow, reflexed segments. Stamens 8, convergent. 

 Anthers tubular, 2-parted, opening by oblique pores. .Besj-ry 

 globose, 4-oelled, many-seeded, red, or purple. Leaves 

 alternate. Oxycoccus, Pers. 



( Vaccinium, L.) 

 Stems always erect. Flowers 5- or 4-merous. 

 Corolla urn-shaped, campanulate, or cylindric, with the lobes 

 reflexed. Stamens 10 or 8. Anthers awned or awnless, the 

 2 cells produced into a tube at the apex. Berry 4- or 5- ^or 

 by a false partition 6- to 10-) celled, black, bluish, greenish, 

 rarely red. Leaves scattered. Vaccinium, L. (65'?). 



515. Leaves not stipulate 516 



Leaves stipulate. Flowers 5- (or 4-) merous. Sta- 

 mens 5 (or 4). Style short, or none ; stigmas ' 2. Fruit a 

 2-celled, many-seeded pod. Herbs erect or prostrate. Sti- 

 pules with 2 to 4 subulate points eacb side. Flowers small, 

 axillary, white. Oldeulandia (533). 



516. Shrubs, or shrubby plants. Leaves opposite. . .51 7 

 Herbaceous plants 521 



517. Corolla tubular, funnel-form, or bell-shaped. Style 

 filiform 518 



