98 



HEATH FAMILY 



Cyanococcus Blueberries 



Free limb of calyx deeply lobed, corolla bell-shaped to cylindrical, 

 stamens included, anthers not awned, berry more or less completely 10- 

 celled (rarely 8-celled), blue, black, or sometimes whitish; leaves decidu- 

 ous. 



( 1 ) Leaves finely serrate, nearly smooth, twigs 



warty, nearly glabrous V. pennsylvanicum 



(2) Leaves entire, twigs and leaves densely 



hairy V. canadense 



Vitis-Idaea Mountain Cranberry 



Free limb of calyx deeply lobed, corolla bell-shaped, stamens included, 

 anthers not awned, berry 4-celled, red ; leaves evergreen. 



V. Vitis-Idaea. 



Oxycoccus Cranberries 



Free limb of calyx deeply lobed, corolla reflexed, deeply cleft or of 

 almost or quite separate petals, stamens exserted, not awned, berry 4- 

 celled, red; our species, prostrate evergreen shrubs with very small leaves. 



( 1 ) Leaves ovate, acute, fruit less than 1 cm. 



in diameter V. oxycoccus 



(2) Leaves elliptical, obtuse, fruit more than 1 



cm. in diameter V. macro car pum 



Vaccinium uliginostim Vaccinium caespitosum 



