Pamphlets on Forestry, Volume 41991 |
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Page 375
... produced by the action of strong acids on starch , sugar , and cellulose . The relation of nitrogen to these bodies is still unknown . Principally on the basis of color and solubility in alkalies and acids , there are several substances ...
... produced by the action of strong acids on starch , sugar , and cellulose . The relation of nitrogen to these bodies is still unknown . Principally on the basis of color and solubility in alkalies and acids , there are several substances ...
Page 382
... produced six to eight mature leaves . The leaves were measured as to length and breadth . An index was obtained by multiplying these two numbers together and averaging for each culture . Following are the indexes of leaf area thus ...
... produced six to eight mature leaves . The leaves were measured as to length and breadth . An index was obtained by multiplying these two numbers together and averaging for each culture . Following are the indexes of leaf area thus ...
Page 417
... produced by congeries of aggregate rays whose concentrated retarding influence upon the growth of certain radii produces the large grooves in the stem . A careful study of this plant shows that the foliar rays of the aggregate type are ...
... produced by congeries of aggregate rays whose concentrated retarding influence upon the growth of certain radii produces the large grooves in the stem . A careful study of this plant shows that the foliar rays of the aggregate type are ...
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