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| Plate 81.--Classification: SYSTEM Palustrine, CLASS Scrub-Shrub Wetland, SUBCLASS Needle-leaved Evergreen, DOMINANCE TYPE Picea mariana, WATER REGIME Saturated, WATER CHEMISTRY Fresh. Subordinate plants include: dwarf birch (Betula nana), cotton grass (Eriophorum vaginatum), bog blueberry (Vaccinium uliginosum), Labrador tea (Ledum groenlandicum), and peat moss (Sphagnum spp.). This wetland type, commonly known as "muskeg," is abundant in the forested regions of Alaska; it also occurs in northern New England and in the Great Lakes States. (Vicinity of Coldfoot, Alaska; July 1985; Photo by F. C. Golet) |
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| Plate 82.--Classification: SYSTEM Palustrine, CLASS Forested Wetland, SUBCLASS Broad-leaved Deciduous, DOMINANCE TYPE Acer rubrum, WATER REGIME Saturated, WATER CHEMISTRY Fresh-Acid, SOIL Organic. Subordinate plants in this red maple swamp include black gum (Nyssa sylvatica), highbush blueberry (Vaccinium corymbosum), great laurel (Rhododendron maximum), and winterberry (Ilex verticillata). (Washington County, Rhode Island; June 1977; Photo by F. C. Golet) |
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| Plate 83.--Two habitats are shown here. Classification of the forested area: SYSTEM Palustrine, CLASS Forested Wetland, SUBCLASS Needle-leaved Deciduous, DOMINANCE TYPE Taxodium distichum, WATER REGIME Permanently Flooded, WATER CHEMISTRY Fresh. Classification of the open area: SYSTEM Palustrine, CLASS Aquatic Bed, SUBCLASS Floating Vascular, DOMINANCE TYPE Pistia stratiotes, WATER REGIME Permanently Flooded, WATER CHEMISTRY Fresh. Emergent plants growing in the bed of water lettuce are arrowheads (Sagittaria spp.). (Corkscrew Swamp Sanctuary, Collier County, Florida; January 1978; Photo by E. T. LaRoe) |
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| Plate 84.--Classification: SYSTEM Palustrine, CLASS Forested Wetland, SUBCLASS Needle-leaved Evergreen, DOMINANCE TYPE Chamaecyparis thyoides, WATER REGIME Seasonally Flooded, WATER CHEMISTRY Fresh-Acid, SOIL Organic. Subordinate plants in this Atlantic white cedar swamp include: highbush blueberry (Vaccinium corymbosum), winterberry (Ilex verticillata), red maple (Acer rubrum), and peat moss (Sphagnum spp.). Low vegetation in the foreground includes leatherleaf (Chamaedaphne calyculata) and Virginia chain-fern (Woodwardia virginica). (Washington County, Rhode Island; July 1977; Photo by F. C. Golet) |