. Catalogue of the fossil plants of the Glossopteris flora in the Department of geology. Paleobotany -- Carboniferous; Paleobotany -- Catalogs and collections; Plants, Fossil -- Catalogs and collections. ACTINOPTERIS. 15 of certain Mesozoic fern-like plants. Actinopteris lengalensis was described by Feistmantel as follows:—Leaves orbicular or broadly oval, and as it appears peltate, composed of segments deeply cut, with a central point of insertion ; nerves radiating. Zeiller1 has recently examined the type-specimen, and has modified Feistmantel's description in certain respects. He points out
. Catalogue of the fossil plants of the Glossopteris flora in the Department of geology. Paleobotany -- Carboniferous; Paleobotany -- Catalogs and collections; Plants, Fossil -- Catalogs and collections. ACTINOPTERIS. 15 of certain Mesozoic fern-like plants. Actinopteris lengalensis was described by Feistmantel as follows:—Leaves orbicular or broadly oval, and as it appears peltate, composed of segments deeply cut, with a central point of insertion ; nerves radiating. Zeiller1 has recently examined the type-specimen, and has modified Feistmantel's description in certain respects. He points out that the leaves are joined together for about two-thirds of their length, and that the whorls, in the living state, must have. Fig. 5.—[Actinopteris] bengalensis, Feist. After Feistmantel. Nat. size. spread out horizontally in the form of a flattened disc. There is no evidence that the whorl consists of six segments as Feistmantel supposed. I agree entirely with Zeiller's conclusion that these specimens, so far as one can judge from the small fragments known, should be referred to the Equisetales, and not to the Ferns. Zeiller has also expressed the opinion that, if we had more complete evidence, this plant would probably be found to constitute a new genus, but that the material is at present too imperfect to warrant the institution of a new name. I have, therefore, placed it here, with Feistmantel's generic name in square brackets, indicating that this is incorrect, 1 Zeiller (021), pp. 28, 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 British Museum (Natural History). Dept. of Geology; Arber, E. A. Newell (Edward Alexander Newell), 1870-1918. London, Printed by order of the Trustees
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