MONOCOTYLEDilXS AXI) DIOOTVLEDOXS 



269 



of the pollen-sacs by terminal pores, wliich are often pro- 

 longed into tubes (Fig. 256). 



Fig. t!54. Characteristic lieath plants: .4. B. ('. Lyonia. showing sympetalous flowers 

 and single style from the lobed syncarpous ovary; />, two forms of Cassiope, 

 showing trailing habit, small overlapping leaves, and sympetalous flowers, but in 

 the smaller form the petals are almost distinct. — After Drude. 



Common representatives of the family are as follows : 

 huckleberry {Gaijlussacia), cranberry and blueberry ( Yac- 

 cinium), bearberry [Arcfostaphylos), trailing arbutus (Epi- 



