Tropical Nature, and Other EssaysMacmillan and Company, 1878 - 356 pages |
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Page 224
... fertilize the flower in the absence of sufficient nectar or other attraction in the flower itself ; and the supposition is rendered more probable by this being the only species of the genus Ajuga in South Africa . Many other cases of ...
... fertilize the flower in the absence of sufficient nectar or other attraction in the flower itself ; and the supposition is rendered more probable by this being the only species of the genus Ajuga in South Africa . Many other cases of ...
Page 228
... fertilization ; which , as Mr. Darwin was the first to demonstrate , immensely increases the vigour and fertility of ... fertilized perpetually , but that pollen shall be carried , either constantly or occasionally , from the flowers of ...
... fertilization ; which , as Mr. Darwin was the first to demonstrate , immensely increases the vigour and fertility of ... fertilized perpetually , but that pollen shall be carried , either constantly or occasionally , from the flowers of ...
Page 229
... fertilized by it . This mode of securing cross - fertilization seems so simple so simple and easy , that we can hardly help wondering why it did not always come into action , and so obviate the necessity for those elaborate , varied ...
... fertilized by it . This mode of securing cross - fertilization seems so simple so simple and easy , that we can hardly help wondering why it did not always come into action , and so obviate the necessity for those elaborate , varied ...
Page 230
... fertilized by night - flying moths ; and those which reserve their odours for the evening pro- bably escape the visits of diurnal insects , which would consume their nectar without effecting fertilization . The absence of odour in showy ...
... fertilized by night - flying moths ; and those which reserve their odours for the evening pro- bably escape the visits of diurnal insects , which would consume their nectar without effecting fertilization . The absence of odour in showy ...
Page 232
... fertilized by bees , its alpine ally has had its structure so modified as to be adapted for fertilization only by butterflies . ' But bees are always ( in the temperate zone ) far more abun- dant than butterflies , and this will be ...
... fertilized by bees , its alpine ally has had its structure so modified as to be adapted for fertilization only by butterflies . ' But bees are always ( in the temperate zone ) far more abun- dant than butterflies , and this will be ...
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Common terms and phrases
abundant adapted adorned Africa allied Amazon animals ants Asia attract bamboo Batavia beautiful become birds blue brilliant butterflies carnivora causes changes character characteristic climate colour Colours of Animals comparatively conspicuous continent curious Danaidæ Darwin distinct Eocene equator equatorial zone existence extensive fact families fauna favourable feet female ferns fertilization flowers foliage forests fruits genera genus greater green groups habits heat humming-birds hyænas immense inhabit insects Juan Fernandez land larger larvæ leaves lemurs less light Madagascar Malay Archipelago male mammalia marsupials Miocene monkeys natural selection naturalists North northern observed occur ocean ornaments Palearctic parrots peculiar perhaps phenomena plants plumage probably produced proportion protection rays region remarkable resemble sexual selection showy slender sometimes South America species spots structure sun-birds surface tail temperate zones temperature theory tints tion trees tropical trunks Ungulata variation varied variety vegetation whole wings yellow