18 (11) Leaves tiny and scalelike, closely imbricated (covering base 

 of leaf above) , pubescent, flowers yellow, sessile ; low shrubs 

 forming hoary cushions 15-30 cm high on secondary sand 



dunes and in the hollows between dunes Hudsonia tomentosa, 



Beach Heather, Poverty Grass of Thoreau {H. ericoides 

 may occur on dunes) 



Figure 18. — Stem, leaves and flowers X2. 



18 (11) Leaves not tiny and scalelike 19 



19 (18) Shrubs with leaves aromatic when crushed between the fingers 20 



19 (18) Shrubs; leaves not aromatic 21 



20 (19) Leaves elliptic, oblanceolate or obovate with wax 

 dots beneath; branches whitish gray or drab; clus- 

 ters of bony globular nuts covered with white or gray 



wax Myrica pensylvanica, 



Bayberry 



Figure 19. — Stem and leaves X%- 



10 



