Pamphlets on Forestry, Volume 41991 |
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Page 362
... deposits several feet in thickness . and covering quite large areas , bordering streams , whose channels lie deeply sunken in the deposits , seems to find its best explanation in this manner . But little field work has been done on the ...
... deposits several feet in thickness . and covering quite large areas , bordering streams , whose channels lie deeply sunken in the deposits , seems to find its best explanation in this manner . But little field work has been done on the ...
Page 365
... deposits may be conveniently summarized under two heads , genetically unrelated : ( 1 ) those of glaciated regions ; ( 2 ) those of the coastal plain . The peat of the glaciated area constitutes the great bulk of these American deposits ...
... deposits may be conveniently summarized under two heads , genetically unrelated : ( 1 ) those of glaciated regions ; ( 2 ) those of the coastal plain . The peat of the glaciated area constitutes the great bulk of these American deposits ...
Page 366
... deposits . TODD ( 54 , p . 121 ) has mentioned the occurrence of such peat deposits in eastern South Dakota . BARBOUR also reports such deposits from central and eastern Nebraska ( 2 ) . On the basis of their field relations and certain ...
... deposits . TODD ( 54 , p . 121 ) has mentioned the occurrence of such peat deposits in eastern South Dakota . BARBOUR also reports such deposits from central and eastern Nebraska ( 2 ) . On the basis of their field relations and certain ...
Contents
The Huron River valley | 402 |
their development and ecological conditions | 360 |
The bogplant societies | 429 |
4 other sections not shown
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2d whorl 4th whorl abundant acidity Alnus aments apex apical shoot Aronia average basin bast fibers Betula bog areas bog plants bog societies bog water branches cambial activity cambium cassandra conifers creosote crystals cutting depressions diameter increase Dicotyledonous drainage drained factors Fagales fiber bundles foliar ray forest formation genera glacial growth habitats HARTIG heartwood hickory Huron June lake larch Larix layers leaves lobes lower mature Michigan moraine occur parenchyma parenchyma cells peat perianth periderm phloem pine Pinus piƱon Pinus rigida pith rays plant societies Platanus plates present Quercus radial region resin canals roots rows Salix sapwood scattered sclerenchyma sclerotic sedge shrubs sieve tubes soil species specimens sphagnum stem stone cells substratum surface swamp tamarack temperature thick tissue tracheids trees trunk twigs tyloses undrained uniseriate rays vegetation vessels Viola blanda walls white oak wood xerophilous xylem zone