. The algae. Algae. » I A K Jiswr.;-. I 0 * S»;ai U; Li»^1 Fig. 228 Geographical distribution of Codium sect, bursa. (After Svedelius.) (4) In general, the Indo-Pacific region is more probable as the home of the various tropical and subtropical genera and they can be classified into: {a) Genera with no Atlantic representatives. {h) Genera with a few Atlantic species, Halimeda^ Caulerpa, Sargassum, Dictyota, Scinaia, Galaxaura. The following genera are probably of Adantic origin: Dasycladus, Penicillus, Cladocephalus, Batophora. (5) Several families in the Laminariales, Laminariac
. The algae. Algae. » I A K Jiswr.;-. I 0 * S»;ai U; Li»^1 Fig. 228 Geographical distribution of Codium sect, bursa. (After Svedelius.) (4) In general, the Indo-Pacific region is more probable as the home of the various tropical and subtropical genera and they can be classified into: {a) Genera with no Atlantic representatives. {h) Genera with a few Atlantic species, Halimeda^ Caulerpa, Sargassum, Dictyota, Scinaia, Galaxaura. The following genera are probably of Adantic origin: Dasycladus, Penicillus, Cladocephalus, Batophora. (5) Several families in the Laminariales, Laminariaceae, Alariaceae, are of Boreal Atlantic-Pacific discontinuity. These famiUes must formerly have had a circum-arctic distribution but were pushed south by the onset of the Ice Age and then they re- mained in their new habitat when the ice retreated. In this case change of climate in a former epoch provides a satisfactory ex- 432. 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 Chapman, V. J. (Valentine Jackson), 1910-. London, Macmillan; New York, St. Martin's Press
Size: 1657px × 1507px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bo, bookcentury1900, bookcollectionbiodiversity, booksubjectalgae
