Tropical Nature, and Other EssaysMacmillan and Company, 1878 - 356 pages |
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Page 32
... existence as parasitical climbers which take root in the fork of some forest - tree and send down aerial roots which clasp round the stem that upholds them . As these roots increase in size and grow together laterally they cause the ...
... existence as parasitical climbers which take root in the fork of some forest - tree and send down aerial roots which clasp round the stem that upholds them . As these roots increase in size and grow together laterally they cause the ...
Page 34
... existence among the seedlings of the surrounding trees , in which a few ultimately prevail and fill up the space vacated by their predecessor . Yet beneath this second set of medium- sized forest - trees there is often a third ...
... existence among the seedlings of the surrounding trees , in which a few ultimately prevail and fill up the space vacated by their predecessor . Yet beneath this second set of medium- sized forest - trees there is often a third ...
Page 53
... existence of the joints and partitions , it is wonderfully strong in proportion to its weight . It can be found of many distinct sizes and proportions ; light or heavy , long or short - jointed , and varying from the size of a reed to ...
... existence of the joints and partitions , it is wonderfully strong in proportion to its weight . It can be found of many distinct sizes and proportions ; light or heavy , long or short - jointed , and varying from the size of a reed to ...
Page 65
... existence among the plants of the tropical forests would have led to the acquisition , by a much larger proportion of them , of so valuable a character as bright - coloured flowers , this being almost a necessary preliminary to a ...
... existence among the plants of the tropical forests would have led to the acquisition , by a much larger proportion of them , of so valuable a character as bright - coloured flowers , this being almost a necessary preliminary to a ...
Page 66
... existence is against climate . As we approach towards regions of polar cold or desert aridity the variety of groups and species regu- larly diminishes ; more and more are unable to sustain the extreme climatal conditions , till at last ...
... existence is against climate . As we approach towards regions of polar cold or desert aridity the variety of groups and species regu- larly diminishes ; more and more are unable to sustain the extreme climatal conditions , till at last ...
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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