. Coral and atolls: a history and description of the Keeling-Cocos Islands, with an account of their fauna and flora, and a discussion of the method of development and transformation of coral structures in general. Coral reefs and islands. GROWTH OF THE CORAL COLONY 81 exfoliating plates, and then it may bear zooids on both surfaces of the plates, or on the upper surface alone. In every case where zooids are borne both above and below, there is the same marked difference of structure between the two surfaces. When the linear growing point grows uniformly upwards, the resulting growth consists
. Coral and atolls: a history and description of the Keeling-Cocos Islands, with an account of their fauna and flora, and a discussion of the method of development and transformation of coral structures in general. Coral reefs and islands. GROWTH OF THE CORAL COLONY 81 exfoliating plates, and then it may bear zooids on both surfaces of the plates, or on the upper surface alone. In every case where zooids are borne both above and below, there is the same marked difference of structure between the two surfaces. When the linear growing point grows uniformly upwards, the resulting growth consists of a series of vertical plates; and when the growth takes this form, the structure of both Fic4. 20. m^. Vegetative Reproduction in Corals. Diagrammatic section to illustrate the mode of growth of Montipora : the uppermost zooids are the most newly formed. sides of the plate is identical, and zooids grow from both surfaces. A plate-like growth is formed by a uniform and con- tinuous growing edge; but the linear series of young growing zooids may not maintain their continuity: the growing edge may reach a certain size and then divide, and the resulting growth consequently takes the form of a plate, cleft at its edges, or of a branching form, all of whose branches are given off in one plane. This is a highly characteristic form of growth of one type of Montipora which is abundant in the islands, and it grades very naturally into the plate-like growths. 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 Jones, F. Wood (Frederic Wood), 1879-1954. London, Lovell Reeve & Co. , Ltd.
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Keywords: ., bookauthorjonesfwo, bookcentury1900, bookdecade1910, bookyear1912
