单词 | hydrarch |
释义 | hydrarchadj. Ecology. Of a succession of plant communities: having its origin in a watery habitat. ΘΚΠ the world > plants > by habitat or distribution > [adjective] > that thrives or does not thrive in moisture fenny1543 plashy1822 inundatal1847 paludal1847 hygrophilous1863 uliginal1863 xerophilous1863 uliginose1866 xerophil1884 ombrophilous1895 ombrophobic1895 ombrophobous1895 xerophytic1897 sclerophyllous1903 xeromorphic1909 hydrarch1913 xerarch1913 ombrophile1924 sclerophyll1926 hygrophytic1936 xerophilic1961 the world > plants > by habitat or distribution > [adjective] > aquatic waterya1382 subaquaneous1656 subaquatic1750 aquatic1794 demersed1866 pelagic1887 hydrophytic1901 hydrarch1913 1913 W. S. Cooper in Bot. Gaz. 55 11 The terms xerarch and hydrarch are here used for the first time, for the purpose of indicating a natural and important classification of plant successions. The former is applied to those successions which, having their origin in xerophytic habitats, such as rock shores, beaches, and cliffs, become more and more mesophytic in their successive stages; the latter to those which, originating in hydrophytic habitats such as lakes and ponds, also progress towards mesophytism. 1929 J. E. Weaver & F. E. Clements Plant Ecol. iv. 55 Successions beginning in ponds, lakes, marshes, or elsewhere in water are termed hydrarch. 1960 N. Polunin Introd. Plant Geogr. xi. 324 They [sc. the seres] are distinguished as ‘hydrarch’, ‘mesarch’, or ‘xerarch’, according to whether their initiation is under damp, median, or dry conditions. This entry has not yet been fully updated (first published 1976; most recently modified version published online June 2018). < adj.1913 |
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