Pamphlets on Forestry, Volume 41991 |
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Page 360
... ORIGIN OF THE LAKE AND BOG BASINS . In connection with the special consideration of the bog flora , it is of interest to note the origin of the depressions in which this flora has developed and flourished . Indeed , in the morainic belt ...
... ORIGIN OF THE LAKE AND BOG BASINS . In connection with the special consideration of the bog flora , it is of interest to note the origin of the depressions in which this flora has developed and flourished . Indeed , in the morainic belt ...
Page 417
... origin , and to have been evolved from more complex ancestors . In other words , in the evolution of living plants may be traced the gradual reduction and disappearance , as well as the origin and develop- ment , of specialized tissues ...
... origin , and to have been evolved from more complex ancestors . In other words , in the evolution of living plants may be traced the gradual reduction and disappearance , as well as the origin and develop- ment , of specialized tissues ...
Page 417
... Origin of the Broad Ray in Quercus . Bot . Gaz . , xlix , No. 3 , March , 1910 . : On the Origin of the Herbaceous Habit in Angiosperms . Annals of Botany , vol . xxv , No. xcvii , Jan. , 1911 . 5 . 6. GROOM , PERCY : The Evolution of ...
... Origin of the Broad Ray in Quercus . Bot . Gaz . , xlix , No. 3 , March , 1910 . : On the Origin of the Herbaceous Habit in Angiosperms . Annals of Botany , vol . xxv , No. xcvii , Jan. , 1911 . 5 . 6. GROOM , PERCY : The Evolution of ...
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 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