Hostname: page-component-586b7cd67f-dsjbd Total loading time: 0 Render date: 2024-11-24T03:53:23.073Z Has data issue: false hasContentIssue false
  • English
  • Français

III.—Some Specimens of Cladoxylon from the Calciferous Sandstone Series of Berwickshire

Published online by Cambridge University Press:  06 July 2012

Albert G. Long
Albert G. Long
Affiliation:
Hancock Museum, Newcastle upon Tyne.
Get access Rights & Permissions [Opens in a new window]

Synopsis

Cladoxylon waltoni sp. nov. is described from stems resembling C. radiatum Unger in the form of stele and absence of secondary xylem, but differing in the mode of emission of clepsydroid leaf-traces. Each leaf-trace originates as a band of xylem connecting two adjacent xylem arms. Dorsiventral axes with an ornate U-shaped bundle and 4-9 radiating arms are also included in the species. These give off alternate clepsydroid traces from two or three adjacent arms in a manner resembling a rachis. One specimen of Hierogramma mysticum Unger is described and three small rachides are interpreted as possible subdivisions of a Hierogramma frond.

Type
Research Article
Information
Earth and Environmental Science Transactions of The Royal Society of Edinburgh , Volume 68 , Issue 3 , 1968 , pp. 45 - 61
Copyright
Copyright © Royal Society of Edinburgh 1968

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

References to Literature

Andrews, H. N., 1961. Studies in Paleobotany, 60. New York and London.Google Scholar
Arnold, C. A., 1940. “Structure and relationships of some Middle Devonian plants from Western New York”, Am. J. Bot., 27, 57–63.CrossRefGoogle Scholar
Arnold, C. A., 1952. “Observations on fossil plants from the Devonian of eastern North America. VI. Xenocladia medullosina Arnold”, Contr. Mus. Paleont. Univ. Mich., 9, 297–309.Google Scholar
Bertrand, P., 1935. “Contribution à l'étude des Cladoxylées de Saalfeld”. Palœntographica, 80B, 101–170.Google Scholar
Dawson, J. W., 1881. “Notes on new Erian (Devonian) plants”, Q. Jl Geol. Soc. Lond., 37, 299–308.CrossRefGoogle Scholar
Engler, H. G. A., and Prantl, K. A. E., 1902. Die Natürlichen Pflanzenfamilien, Teil 1, Abt. 4, 782 (2nd Edn., 1960, 13, 19). Leipzig.Google Scholar
Gothan, W., 1927. “Structurzeigende Pflanzen aus dem Oberdevon von Wildenfels”, Abh. Sächs. Geol. Landesamts, 3, 3–12.Google Scholar
Gothan, W., and Weyland, H., 1954. Lehrbuch der Paläobotanik, 236. Berlin.Google Scholar
Hirmer, M., 1927. Handbuch der Paläobotanik, 519. Munich and Berlin.Google Scholar
Krausel, R., and Weyland, H., 1926. “Beiträge zur Kenntnis der Devonflora. II”, Abh. Senckenb. Naturforsch. Ges., 40, 115–155.Google Scholar
Krausel, R., 1929. “Beitrage zur Kenntnis der Devonflora”. III, Abh. Senckenb. Naturforsch. Ges., 41, 317–359.Google Scholar
Leclercq, S., and Banks, H. P., 1962. “Pseudosporochnus nodosus sp. nov., a Middle Devonian plant with cladoxylalean affinities”, Palœontographica, 110B, 1–34.Google Scholar
Leclercq, S., and Schweitzer, H. J., 1965. “Calamophyton is not a Sphenopsid”, Bull. Acad. Roy. Belg. Cl. Sci., 51, 1395–1403.Google Scholar
Melchior, H., and Werdemann, E., 1954. In Engler's “Syllabus der Pflanzenfamilien”, 287.Google Scholar
Potonié, H., and Bernard, Ch., 1904. Flore Devonienne de l'étage H-h1 de Barrande. Leipzig.Google Scholar
Read, C. B., 1935. “An occurrence of the genus Cladoxylon Unger, in North America”, J. Wash. Acad. Sci., 25, 493–497.Google Scholar
Richter, R., and Unger, F., 1856. “Beitrag zur Palaontologie des Thuringer Waldes”, Denkschr. Akad. Wiss., Wien, 11, 179–180.Google Scholar
Scott, D. H., 1923. Studies in Fossil Botany, Pt. 2, 168, Fig. 67A, 3rd Edn. London.Google Scholar
Seward, A. C., 1917. Fossil Plants, 3, 200–207. Cambridge.Google Scholar
Solms-Laubach, , Zu, H. Graf, 1910. “Uber die in den Kalksteinen des Culm von Glatzisch-Falkenberg in Schlesien erhaltenen strukturbietenden Pflanzenreste. IV”, Z. Bot., 2, 529–554.Google Scholar
Sporne, K. R., 1962. The Morphology of Pteridophytes, 27, 116–119. London.Google Scholar
Walton, J., 1953. An Introduction to the Study of Fossil Plants, 94, 2nd Edn. London.Google Scholar
Wettstein, R., 1935. Handbuch der systematischen Botanik. 359 footnote, 4th Edn. Leipzig.Google Scholar
Zimmermann, W., 1959. Die Phylogenie der Pflanzen, 254, 2nd Edn. Stuttgart.Google Scholar