. An introduction to the structure and reproduction of plants. Plant anatomy; Plants. ADi\PTATION 379 the term in its widest sense, owe their lack of vigour partly to adverse environmental conditions and partly to inherited char- acteristics. Just as a human being with a " weak constitution " may have inherited his defect or owe it to the surroundings in which he grows up. Unlike most animals, plants cannot choose their place of habitation. The seeds or spores are carried passively to a variety of situations, and their chances of developing into mature. Fig. 221.—Alpine {A.) and lowl
. An introduction to the structure and reproduction of plants. Plant anatomy; Plants. ADi\PTATION 379 the term in its widest sense, owe their lack of vigour partly to adverse environmental conditions and partly to inherited char- acteristics. Just as a human being with a " weak constitution " may have inherited his defect or owe it to the surroundings in which he grows up. Unlike most animals, plants cannot choose their place of habitation. The seeds or spores are carried passively to a variety of situations, and their chances of developing into mature. Fig. 221.—Alpine {A.) and lowland (L.) forms of the Rock Rose [Helicm- theinum vulgare). (After Bonnier.) plants depend upon their power of accommodating themselves to the environment in which they may be placed. But many plants exhibit this power of adaptation to a very marked degree. as is well illustrated by those aquatics which can grow either totally submerged or on exposed mud (cf. p. 175), by the sun- and-shade-forms of woodland plants (p. 168), and by the Alpine forms of lowland plants (p. 170, Fig. 221). It has long been a matter of dispute as to whether or no the changes, impressed upon an organism by the environment, bring about any corresponding internal modification, by means. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Fritsch, Felix Eugene, 1879-; Salisbury, E. J. (Edward James), Sir, b. 1886. London, G. Bell and sons ltd.
Size: 1820px × 1373px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, booksubjectpl, booksubjectplants
