Textbook of Theoretical Botany, Volume 2 |
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Page 1226
... Angiosperms and a belief that there must be a funda- mental uniformity in their reproductive structures , however varied its expression might be . So multiform are the Angiosperms that any theory of uniformity is certain to encounter ...
... Angiosperms and a belief that there must be a funda- mental uniformity in their reproductive structures , however varied its expression might be . So multiform are the Angiosperms that any theory of uniformity is certain to encounter ...
Page 1253
... Angiosperms . A contrary view is , however , possible , namely that the evolution of angio- spermy and the development of insect pollination were closely linked . The geological record shows that the Angiosperms assumed their present ...
... Angiosperms . A contrary view is , however , possible , namely that the evolution of angio- spermy and the development of insect pollination were closely linked . The geological record shows that the Angiosperms assumed their present ...
Page 1428
... Angiosperms as a class , in the late Mesozoic period . Speculation has not unnaturally been stimulated by the absence of precise information and various schools of thought on the subject have found expression and supporters . The ...
... Angiosperms as a class , in the late Mesozoic period . Speculation has not unnaturally been stimulated by the absence of precise information and various schools of thought on the subject have found expression and supporters . The ...
Contents
FLOWERS | 1071 |
POLLINATION AN INTRODUCTION | 1252 |
SEEDS FRUITS AND SEEDLINGS | 1481 |
2 other sections not shown
Common terms and phrases
actinomorphic anatropous androecium Angiosperms anthers antipodal apex axile axis basal base bracts calyx capsule carpels cells colour common contains corolla corolla tube cotyledons cross-pollination cultivated dehisce Dicotyledons dispersal distributed elongated embryo sac enclosed endosperm example female flowers fertilization filaments fleshy floral florets Flowering shoot flowers Fig fruit funicle gardens genera genus germination gynoecium hairs herbs hermaphrodite hypocotyl important inflorescence inner insect integument involucre later layer leaf leaves lobes loculus male flowers margins mature micropyle Monocotyledons nectar Nectar is secreted normal nucellus nuclei occur oosphere outer ovary ovules parietal perianth perianth segments petaloid petals placenta plants pollen grains pollen tube pollination mechanism produced rarely receptacle rhizome seeds self-pollination sepals separate showing shrubs single sometimes species stage stamens stem sterile stigma structure style sub-family surface testa tissue trees tropical unisexual usually vegetative visited wall whorl zygomorphic