Science, Том 72John Michels (Journalist) American Association for the Advancement of Science, 1883 Since Jan. 1901 the official proceedings and most of the papers of the American Association for the Advancement of Science have been included in Science. |
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Стр. 181
... gametophyte or sexual plant . The one produced from the embryo does not become free , but remains attached to the gametophyte upon which it lives as a parasite . Sooner or later a large part of the inner tissue of the embryo develops ...
... gametophyte or sexual plant . The one produced from the embryo does not become free , but remains attached to the gametophyte upon which it lives as a parasite . Sooner or later a large part of the inner tissue of the embryo develops ...
Стр. 183
... gametophyte of the Anthocerotales , with its very simple structure and alga - like chromato- phores , most nearly resembles the green algae from which it is assumed the archegoniates are descended . On the other hand , the gametophyte ...
... gametophyte of the Anthocerotales , with its very simple structure and alga - like chromato- phores , most nearly resembles the green algae from which it is assumed the archegoniates are descended . On the other hand , the gametophyte ...
Стр. 184
... gametophyte . It might be said that nature , having in the mosses exhausted her resources in the endeavor to transform the aquatic gametophyte into a successful land plant , turned to the spore - bearing generation as a more promising ...
... gametophyte . It might be said that nature , having in the mosses exhausted her resources in the endeavor to transform the aquatic gametophyte into a successful land plant , turned to the spore - bearing generation as a more promising ...
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B Mosquito Vectors of Experimental Yellow | 1 |
Polar Exploration I BowMAN 439 | 13 |
Sudan III Behavior of E H MACARTHUR | 14 |
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