The New Encyclopaedia Britannica, Volume 4Encyclopaedia Britannica, 1974 - Encyclopedias and dictionaries |
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Page 247
... plant fossil types and detail 7 : 574c preservation in shales 16 : 637e fossil plants , remains of vegetation pre- served in the rocks and sediments of the Earth . The study of fossil plants is known as paleobotany . The oldest known ...
... plant fossil types and detail 7 : 574c preservation in shales 16 : 637e fossil plants , remains of vegetation pre- served in the rocks and sediments of the Earth . The study of fossil plants is known as paleobotany . The oldest known ...
Page 529
... plant . They also promote the growth of dwarf peas and are in- volved in the bolting ( elongation ) of rosette plants ( e.g. , the carrot ) after such plants have been exposed to certain environmental stimuli ( e.g. , cold or long ...
... plant . They also promote the growth of dwarf peas and are in- volved in the bolting ( elongation ) of rosette plants ( e.g. , the carrot ) after such plants have been exposed to certain environmental stimuli ( e.g. , cold or long ...
Page 1016
hemp 1016 hemp ( Cannabis sativa ) , a plant of the family Cannabaceae or its fiore , one of the group called bast fibres ( q.v. ) , obtained from plant stems . The plant is also grown for its seed , which contains about 30 percent oil ...
hemp 1016 hemp ( Cannabis sativa ) , a plant of the family Cannabaceae or its fiore , one of the group called bast fibres ( q.v. ) , obtained from plant stems . The plant is also grown for its seed , which contains about 30 percent oil ...
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