Pamphlets on Forestry, Volume 41991 |
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Page 262
... plate system ; pith rays of one row . ( One species of Populus develops sclerenchyma . ) Salix Populus 2. Small bast fiber bundles , loosely grouped and inde- pendent of crystal cells ; sieve tubes with simple cross- plates ; pith rays ...
... plate system ; pith rays of one row . ( One species of Populus develops sclerenchyma . ) Salix Populus 2. Small bast fiber bundles , loosely grouped and inde- pendent of crystal cells ; sieve tubes with simple cross- plates ; pith rays ...
Page 267
... plates ; those of Gleditsia are much shorter . The pith rays are generally more than four rows wide , and rarely contain stone . cells . Key to the Genera : Bast fiber bundles or plates in tangential rows cut through by broad pith rays ...
... plates ; those of Gleditsia are much shorter . The pith rays are generally more than four rows wide , and rarely contain stone . cells . Key to the Genera : Bast fiber bundles or plates in tangential rows cut through by broad pith rays ...
Page 451
... Plate LIII , figure 3 , shows a cross section of the sapwood of pignut hickory ( Hicoria glabra ) , including the ... Plates LIII , figures 1 , 2 , and 3 , and LV , figure 2 . Acer negundo L. .do . Yellow birch . River birch Mar. 25 ...
... Plate LIII , figure 3 , shows a cross section of the sapwood of pignut hickory ( Hicoria glabra ) , including the ... Plates LIII , figures 1 , 2 , and 3 , and LV , figure 2 . Acer negundo L. .do . Yellow birch . River birch Mar. 25 ...
Contents
The Huron River valley 351 | 351 |
their development and ecological conditions | 360 |
The bog plant societies | 429 |
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2d whorl 4th whorl abundant acidity aggregate ray Alnus aments annual ring apex Aronia basin bast fibers Betula bog areas bog plants bog societies bog water branches cambial activity cambium cassandra conifers creosote crystals cutting depressions diameter increase Dicotyledons drainage drained factors Fagales fiber bundles foliar ray forest formation glacial growth habitats HARTIG heartwood hickory Huron June lake larch Larix layers leaves lower 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 tyloses undrained uniseriate rays vegetation vessels Viola blanda walls white oak wood xerophilous xylem zone μ μ μ