. Ecological and systematic studies of the Ceylon species of Caulerpa. Marine algae. THE CEYLON SPECIES OF CAULERPA. 123 on the beach, washed ashore probably from somewhat deeper regions. It is also remarkable that in regard to the root-system quite a remarkable difference prevails between C. racemosa and C. uvifera. The latter has, as can easily be seen by comparing figs. 13, 14, and 15 a much more richly developed root-system. The root branches are longer and more branched, parting into innumerable fine root-branchlets. These adhere so firmly to sand and shell particles that on uprooting the
. Ecological and systematic studies of the Ceylon species of Caulerpa. Marine algae. THE CEYLON SPECIES OF CAULERPA. 123 on the beach, washed ashore probably from somewhat deeper regions. It is also remarkable that in regard to the root-system quite a remarkable difference prevails between C. racemosa and C. uvifera. The latter has, as can easily be seen by comparing figs. 13, 14, and 15 a much more richly developed root-system. The root branches are longer and more branched, parting into innumerable fine root-branchlets. These adhere so firmly to sand and shell particles that on uprooting these plants masses of sand and the like will loosen and accompany the roots sooner than these latter break. The davifera, preferably growing on corals and stones, on the other hand, has not by a long way so finely branched a root-system, but is fixed by few and coarser root-branchlets. The difference that exists between C. racemosa and C. uvifera in respect to their organization corresponds therefore with different localities. The majority of Ceylon forms of wi^j/era observed by me seem to belong to /. intermedia (Weber v. Bosse), at least when chief importance is laid on the charac- ter which is laid stress on in the diagnosis, viz., that " les ramules " are evidently stalked. The /. com,'pressa Weber v. Bosse (Harvey, Ceylon Algae 63) I have been unable to find again. On the other hand, in the Peradeniya Herbarium there is a little form from Bentota labelled " C. sedoides Ag. " which seems indentical with Harvey's 63. Probably it is a mere accidental form, which does not play any very important part in the 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 Svedelius, Nils, 1873-1960. [Ceylon? : s. n. ]
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