Pamphlets on Forestry, Volume 41991 |
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Page 275
... tissue which lies between the visibly differentiating phloem and xylem . The cambium tissue is com- posed of a number of rows of cells , which cells are characterized by their thin walls , dense protoplasmic content , and , viewed in ...
... tissue which lies between the visibly differentiating phloem and xylem . The cambium tissue is com- posed of a number of rows of cells , which cells are characterized by their thin walls , dense protoplasmic content , and , viewed in ...
Page 417
... tissue , either of the homo- geneous or aggregate type , have developed from them by a process of aggre- gation and fusion . In subsequent investigations by the writer ( 1 , 3 ) additional evidence was secured in regard to the origin ...
... tissue , either of the homo- geneous or aggregate type , have developed from them by a process of aggre- gation and fusion . In subsequent investigations by the writer ( 1 , 3 ) additional evidence was secured in regard to the origin ...
Page 417
... tissue is a progression in the direction of compounding . The significant facts to be kept in mind are that in Quercus the first - formed wood of the seedling possesses solely uniseriate rays , the development of foliar rays is a ...
... tissue is a progression in the direction of compounding . The significant facts to be kept in mind are that in Quercus the first - formed wood of the seedling possesses solely uniseriate rays , the development of foliar rays is a ...
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