60 Proceedings of the Ohio State Academy of Science. 



The dominant tree and the only one present in appreciable 

 numbers and of mature age and size is Acer rubruni. Where- 

 ever the shrub zone is well developed this tree is also present. 

 It has likewise invaded the meadow. All thru the latter, stunted 

 straggling maples appear. 



The bog-forest is just becoming established. In certain por- 



FiG. 23. — View of bog-meadow, Cranberry Island, with shrubs scat- 

 tered singly and in masses. Decodon verticillatus is here the most con- 

 spicuous but there are many half dead Rhus and Alnus and one Acer to 

 the left. 



tions of the wooded belt, Acer rubrum is present in such num- 

 bers and has attained such a size that it dominates the vegetation. 

 Almost in the center of the island is one such area, another is in 

 the wooded belt skirting the north shore, another and this is the 

 most pronounced forest, is on the northeastern border of the 

 island (Fig. 13 VII). Besides Acer rubrum a few other forest 



