Textbook of Theoretical Botany, Volume 2 |
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Page 1259
... Bees . The great stores of honey needed demand a wide range of visits and specialization would be a great hindrance ... Humble Bees , to whose visits they are better suited . Even a small difference in the length of the floral tube may ...
... Bees . The great stores of honey needed demand a wide range of visits and specialization would be a great hindrance ... Humble Bees , to whose visits they are better suited . Even a small difference in the length of the floral tube may ...
Page 1320
... Bees , Humble Bees , Wasps , Ichneumon Flies and Ants . The flowers which are pollinated by these insects are varied in form but the majority are zygomorphic , and red , blue or violet colours predominate . Many of the flowers are so ...
... Bees , Humble Bees , Wasps , Ichneumon Flies and Ants . The flowers which are pollinated by these insects are varied in form but the majority are zygomorphic , and red , blue or violet colours predominate . Many of the flowers are so ...
Page 1324
... Humble Bee flowers do not work in the same way . Even in the family Papilionaceae there are a number of different mechanisms , such as the piston and explosive mechanisms , which are operated by Humble Bees , and further mechanisms can ...
... Humble Bee flowers do not work in the same way . Even in the family Papilionaceae there are a number of different mechanisms , such as the piston and explosive mechanisms , which are operated by Humble Bees , and further mechanisms can ...
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