This course aims at providing relevant information about Pteridophytes and Gymnosperms along with their evolutionary history, their phylogenetic relationships and fossil wealth of the world.
General characters, classification, telome theory, stelar system and evolution of stele, apogamy, apospory, origin of seed habit and heterospory.
General characters, classification, structure, economic importance and life history of- Psilopsida: Tmesipteris; Lycopsida: Lycopodium, Isoetes; Sphenopsida: Equisetum; Pteropsida: Osmunda, Ophioglossum
Introduction, general characters, classification, evolution of gymnosperms, distribution of gymnosperms in India, affinities of gymnosperms with angiosperms, pteridophytes and pteridosperms.
Important characters, classification, structure, economic importance and life history of: Cycadales, Ginkgoales, Coniferales, Ephedrales, Welwitschiales and Gnetales.
Types of fossils, geological time scale. Brief account of Rhynia and Psilophyton. Pteridospermales (Glossopteridaceae) Cycadeoidales, Cordaitales and Pentoxylales. Contribution of Birbal Sahani in Palaeobotany.