Pamphlets on Forestry, Volume 41991 |
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Page 384
... plants were grown under properly aerated soil conditions , normal roots developed in place of the mycorhiza . That the acidity of the bog water has nothing to do with the production of mycorhiza is shown by the fact that in water ...
... plants were grown under properly aerated soil conditions , normal roots developed in place of the mycorhiza . That the acidity of the bog water has nothing to do with the production of mycorhiza is shown by the fact that in water ...
Page 417
... plants . This , however , does not invalidate the explanation here suggested . The bog habitat has been con- tinuous since early postglacial times ; only its position and extent have been variable . This same observation holds in the ...
... plants . This , however , does not invalidate the explanation here suggested . The bog habitat has been con- tinuous since early postglacial times ; only its position and extent have been variable . This same observation holds in the ...
Page 417
... plants are of necessity more primitive has in recent years been clearly illustrated by the study of the comparative anatomy of living and fossil plants . The pines , which , owing to their complex structure , have been commonly ...
... plants are of necessity more primitive has in recent years been clearly illustrated by the study of the comparative anatomy of living and fossil plants . The pines , which , owing to their complex structure , have been commonly ...
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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Common terms and phrases
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