. Katalog der Mesozoischen Pflanzen in der Abteilung für Geologie, das British Museum (Natural History) [Teil I-II] Der wealden Flora. Paläobotanik; Paläobotanik. EOTISETITES. 33 3.- Yokoyamse Equisetites, sp. nov. 1846. P CarpoUthus sertum, Dunker, "Wealdenljildung, S. 22, Pi. vii. Abb. 3. 1875. Equisetites Burehariti (teilweise), Schenk, Palseontographica, toI. Xxiii. S.157, Pi. Xxvi. 1. Typ. Knollen und Fragmente von stammt aus Ecclesbourne, in der Nähe von Hastings. Britische. Museum. Holzschnitte, Feigen. 2, 3 und 3*. Stamm schmal, internodien über I'l cm. lang und 5 mm breit; Knollen eng elliptica

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. Catalogue of the Mesozoic plants in the Department of Geology, British Museum (Natural History) [Part I-II] The Wealden flora. Paleobotany; Paleobotany. EOTISETITES. 33 3.—Equisetites Yokoyamse, sp. nov. 1846. P CarpoUthus sertum, Dunker, 'Wealdenljildung, p. 22, pi. vii. fig. 3. 1875. Equisetites Burehariti (in part), Schenk, Palseontographica, toI. xxiii. p. 157, pi. xxvi. fig. 1. Type. Tubers and fragments of stems from Ecclesbourne, near Hastings. British. Museum. Woodcuts, Figs. 2, 3 and 3*. Stem narrow, internodes about I'l cm. in length, and 5 mm. in breadth; tubers narrowly elliptical, attached singly or in chains to the nodes. In the ^National Collection there are several specimens of Equi- setaceous tubers, both isolated and attached to stems, which are distinct in shape from those of E. BureJmrdti, Schimp. Mr. Rufford informs me that these two kinds of tubers never occur together, the specimens of the latter species being found at Bexhill, those of the other type at Ecclesbourne. I have decided, therefore, to give expression to the distinctive character of the Ecclesbourne tubers, and have named the new species after Dr. Tokoyama of Tokyo, who has in recent years made valuable additions to our knowledge of the Mesozoio floras of Japan. In JS. YokoyamcB there are very few details of structure shown in the sandstone specimens. The stems are usually in the form of smooth slender casts with little or no indication of longitudinal ribs and grooves, or leaf-sheaths; the tubers differ from those of E. Burchardli in their smaller size and narrower elliptical form.. Fig 2 (V. 2871). Fig. 3 (V. 2871). Fig. 3* (V. 2335). Tubers of Equisetites Tohoyamce, sp. nov. One of the best examples is represented in Fig. 2; part of a shrunken tuber is shown in place, and immediately below it is a branch attached to the node. This example, with several others, has probably been preserved in the sandy soil in its original position of growth.. Please note that these images are

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• bookauthorbritishm
• bookcentury1800
• bookdecade1890
• bookyear1894