Y] 



mm 



LEGEXD OF PLANT ZONES AND ASSOCIATIONS. 



I. Zone of floating and fixed aquatics. 



II. Zones of marsh and bog-thicket association. 



III. Bog-thicket association. 



IV. Transition zone. 



V. Gaylussacia-heath association. 

 VI. Transition zone. 

 VII. Bog-meadow. 



1. Rhus vernix 



2. Acer rubrum 



3. GayUissacia 



4. Ahius rugosa 



5. Pogonia ophioglossoides 



6. Aronia arbutifolia 



7. Osmunda cinnamomea 



8. O. regalis 



0. Typha lati folia 



10. Dryopteris thelypteris 



11. Carex interior 



12. Cephalanthus occidentaHs 



13. Solanum dulcamara 



14. Decodon verticillatus 



15. Rosa Carolina 



16. Rumex brittanica 



17. Peltandra virginica 



18. Hibiscus moscheutos 



19. Potomageton sp. 



20. Pools 



21. Menj-anthes trifoliata 

 X Diseased Sphagnum 



— Sphagnum sp. and Oxycoccus macro- 

 carpus. 



Fig. 26. — Belt transect from a — a' to b— b' Fig. 13, map of Cranberry 



Island. 



