Spiroxylon Indicum sp. nov., a Taxinean wood from the Lower Gondwanas of India

Authors

  • K.R. Mehta Professor of Botany, Banaras Hindu University

DOI:

https://doi.org/10.54991/jop.1952.415

Abstract

Spiroxylon indicum is the first record of Taxinean wood from the Lower Gondwanas of India and establishes the existence of plants showing Taxoidean anatomy in the Lower Permian strata. It is described from small fragments obtained from some carbonaceous shales and is characterized by the presence of Taxinean spirals in addition to the bordered pits on the walls of its tracheides. It is closely allied to Spiroxylon africanum described by Walton (1925) from South Africa, but differs from that species in certain important details. It is, therefore, described here as a new species. The structure of Spiroxylon indicum lends support to the view that the Taxads may possibly have originated from some Cordaitean ancestors.

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References

ARBER, E. A. N. (1910). Ann. Natal Mus. 2 (2).

BAILEY, I. W. (1909). The Structure of the wood in the Pineae. Bot. Gaz. 48.

COULSON,A. L. (1939). Coal in Mirzapur District. Rec. Geol. Sirv. Ind. 74 (4).

ELKINS, MARION G. & WIELAND, G. R. (1914). Cordaitean wood from the Indiana Black Shale. Amer. Jour. Sci. 38.

FOX, C. S. (1934). The Lower Gondwana Coal fields of India. Mem. Geol. Surv. Ind. 69.

GOTHAN, W. (1905). Zur Anatomie lebender und fossiler Gymnospermen-Holzer. Abh. d. Konigl. Preuss. Geol. Landesantalt., N. F. 44.

HOLDEN,RUTH (1917). On the anatomy of two Palaeozoic stems from India. Ann. Bot. 31.

JONES.W. S. (1912). The structure of the timbers of some common genera of coniferous trees. Quart. Journ. Forestry. April 1912.

MEHTA,K. R. (1942). Palaeobotany in India Report III. Journ. Ind. Bot. Soc. 21 (3, 4): 218.

Idem (1943). Palaeobotany in India Report IV Journ. Ind. Bot. Soc. 22: (2-4): 173-174.

SAHNI, B. (1920). On certain archaic features in the seed of taxus baccata with remarks on the antiquity of the Taxineae. Ann. Bot. 34 (133): 117-133.

Idem (1920a).On the structure and affinities of Acmophyle Pancheri Pilger. Phil. Trans. Roy. Soc. London 210 (B): 253-310.

Idem (1921). Note on the presence of ‘tent-pole’ in the seed of Cephalotaxus pedunculata. Ann. Bot. 35 (138): 297-298.

Idem (1933). Dadoxylon Zalesskyi, a new species of Cordaitean trees from the lower Gondwanas of India. Rec. Geol. Surv. Ind. 66 (4): 414-429.

SAHNI, B. & SINGH,T. C. N. (1926). On some specimens of Dadoxylon Arberi Sew. from New South Wales and Queensland. Journ. Ind. Bot. Soc. 5 (3): 103-112.

SEWARD,A. C. (1917). Fossil plants. 3. Cambridge.

Idem (1919). Fossil plants. 4.

WALTON, J. (1925). On some south African fossil woods. Ann. S. Afric. Mus. 22.

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Published

1952-12-31

How to Cite

Mehta, K. (1952). Spiroxylon Indicum sp. nov., a Taxinean wood from the Lower Gondwanas of India. Journal of Palaeosciences, 1, 330–334. https://doi.org/10.54991/jop.1952.415

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Research Articles