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Bande, M. B.; Awasthi, N.: New thoughts on the structure and affinities of Viracarpon hexaspermum Sahni from the Deccan Intertrappean beds of India

REFERENCES CHITALEY, S.D. (1954): On a fructification from the intertrappean flora of the Madhya Pradesh, India, - - Palaeobotanist, _3_^ 9-17. CHITALEY, S.D., SHALLOM, L.J. & MEHTA, N.V. (1969): Viracarpon sahnii sp.nov. from the Deccan Intertrappean beds of Mahurzari. - J. Sen.Memotial. Volume, Calcutta, pp. 331-334. HISLOP, S. (1853): Remarks on the geology of Nagpur. - Jour

. Bom. Asiat. Soc. _5 (58-76): 148-150. NAMBUDIRI, E.M.V. & TIDWELL, W.D. (1978): On probable affinities of Viracarpon Sahni from the Deccan Intertrappean flora of India. - Palaeontographica, B 166 (1-6): 30-43. PATIL, G.V. (1972): Viracarpon chitaleyi sp.nov. from the Deccan Intertrappean beds of Mohgaonkalan, India. - Botanique, J_ (1): 21-26. SAHNI, B. (1934): The silicified flora of the Deccan Intertrappean series, par II. Gymnosperms and Angiospermous fruits. - Proc. 21st Indian Sei. Cong. pp. 317-318. SAHNI, B. (1944): Takli near Nagpur-genus Viracarpon Sahni. Palaeobotany in India-V. - Proc. Nat. Acad. Sei. India, 14_(122): 80-82. SAHNI, B. (1964): Revision of Indian Fossil Plants Part III - Monocotyledons. - Birbal Sahni Institute of Palaeobotany, India. Monograph No. 1. St.JOHN, H. (1960): Revision of the genus Pandanus Stickm. Part I Key to the Section. - Pacif. Sei., J4_(3): 224-241. STONE, B.C. (1974): Towards an improved infrageneric classification in Pandanus (Pandanaceae). Bot. Jahrb. Syst., _94_(4): 459-540. VERMA, J.K. (1958): On an inflorescence of a new petrified monocot flower, Shuklanthus superbum gen. et sp. nov. from the Deccan Intertrappean Series of Madhya Pradesh, Tndia. J. Palaeont. Soc. India, 3: 185-200. EXPLANATION OF PLATES Plate I. Viracarpon hexapermum Sahni 1. Longitudinal section passing through main axis showing fruits in vertical rows x 3 (B.S.I.P. slide no. 9349) 2. Cross-section showing main axis with monocotyledonous vascular bundles and surrounded by 9 rows of fruits x 3. (B.S.I.P. slide no. 9350) 3. Longitudinal section passing through just above the main axis showing hexacarpellary fruits arranged in alternate fashion, x 3. (B.S.I.P. slide no. 9351) 4. Longitudinal section showing peduncle, main axis and fruits, x 3. (B.S.I.P. slide no. 9352) Plate II. Viracarpon hexaspermum Sahni 5-10. Serial photographs under reflected light of individual fruits cut in cross-sections and showing gradual formation of 6 partition walls by fusion of 6 perianthlike lobes free at the top. Note the vertical ridge on the inner surface of the lobes with hair. Figs 5-6 x 6.5 and 7-10 x 10 Authors' address: Dr. M. B. BANDE Dr. N. AWASTHI Birbal Sahni Institute of Palaeobotany Lucknow - 226007 INDIA