Pamphlets on Forestry, Volume 41991 |
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Page 371
... covering is wanting for one reason or another , the dark color of the surface peat shows how much more complete is ... covered with water to a height of several inches above the level of the roots . Most of the basins are also subject ...
... covering is wanting for one reason or another , the dark color of the surface peat shows how much more complete is ... covered with water to a height of several inches above the level of the roots . Most of the basins are also subject ...
Page 420
... covered area 3 feet ( 0.9m ) above the surface of the bog . The temperatures for the most part were taken on clear afternoons about 3 P. M. when the differences are at their maxima . Date →→→ 4 12 17 25 29 April April April April ...
... covered area 3 feet ( 0.9m ) above the surface of the bog . The temperatures for the most part were taken on clear afternoons about 3 P. M. when the differences are at their maxima . Date →→→ 4 12 17 25 29 April April April April ...
Page 448
... covered with wax , especially at the stomata , guard cells slightly elevated . Mycorhiza present in the larger roots , wanting in the hairlike branches , no root hairs . Andromeda polifolia . - Leaf : margins revolute , upper epidermal ...
... covered with wax , especially at the stomata , guard cells slightly elevated . Mycorhiza present in the larger roots , wanting in the hairlike branches , no root hairs . Andromeda polifolia . - Leaf : margins revolute , upper epidermal ...
Contents
The Huron River valley | 402 |
their development and ecological conditions | 360 |
The bogplant societies | 429 |
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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 piñon 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