Pamphlets on Forestry, Volume 41991 |
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Page 417
... tyloses together in the same vessel . ( Pl . LIV , R3 . ) Although exceptions have been noted , the idea that a considerable number of the outer rings are entirely free from tyloses has , however , been very generally accepted ...
... tyloses together in the same vessel . ( Pl . LIV , R3 . ) Although exceptions have been noted , the idea that a considerable number of the outer rings are entirely free from tyloses has , however , been very generally accepted ...
Page 449
... tyloses and the arrangement of the wood parenchyma clearly brings out some of the reasons why tyloses are so much more abundant in certain woods than in others . Wherever the paratracheal or vasicentric type of parenchyma is well ...
... tyloses and the arrangement of the wood parenchyma clearly brings out some of the reasons why tyloses are so much more abundant in certain woods than in others . Wherever the paratracheal or vasicentric type of parenchyma is well ...
Page 451
... TYLOSES IN NATIVE HARDWOODS Table II gives the results of observations made on the distribution and region of first development of tyloses in 143 specimens of hardwoods grown in the United States . The very marked development of tyloses ...
... TYLOSES IN NATIVE HARDWOODS Table II gives the results of observations made on the distribution and region of first development of tyloses in 143 specimens of hardwoods grown in the United States . The very marked development of tyloses ...
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