Institution: | 1. Department of Botany, D.D.U. Gorakhpur University, Gorakhpur, UP, India, 273009 2. Birbal Sahni Institute of Palaeobotany, 53, University Road, Lucknow, UP, India, 226007 3. Martin-Luther-Universitat, FB Biologie, Institut fUr Geobotanik und Botanischer Garten, Neuwerk 21, 0-06099, Halle, Germany
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