Biology, Diversity and Gymnosperms (PDF)
Biology, Diversity and Gymnosperms written by Prabhat & Nitu Nisha is a great book for understanding Gymnosperms Biology & its Diversity, book available in PDF download. The Book Design specially for Degree Students who do master in Botany or belong subjects.
Long before the first flower unfurled its petals, gymnosperms ruled the Earth's terrestrial ecosystems. These "naked seed" plants were the great evolutionary pioneers that broke free from the water-dependent reproduction of their ancestors, inventing the seed habit and transforming the planet's biosphere. From the towering conifers that dominate modern boreal forests to the bizarre, sprawling leaves of Welwitschia in the Namib Desert, gymnosperms represent a masterclass in survival, resilience, and evolutionary innovation.
This book provides a comprehensive and systematic exploration of gymnosperms, capturing their evolutionary journey from ancient, extinct "seed ferns" to the living taxa that persist today. By intertwining structural botany, reproductive biology, and paleobotany, this text seeks to illuminate the fascinating anatomy and phylogeny of these vessel-less and fruitless seed plants.
This text is carefully crafted for undergraduate and postgraduate students of botany, plant sciences, and paleobotany. It is also an essential resource for educators, evolutionary biologists, and researchers seeking a deeply structured narrative that bridges the fossil record with the biology of extant gymnosperm lineages.
UNIT I
- General Characteristics of Gymnosperms
- Gymnosperms as Vessel-Less & Fruitless Seed Plants
- Gymnosperms: Structure of Sperms
- Gymnosperms: Pollen Grains
- Gymnosperms: Pollen Germination
- Gymnosperms: Complexity of Female Gametophyte
- Evolutionary History of Gymnosperms
- Classification of Gymnosperms
- Distribution of Gymnosperms in India
UNIT II
- General Characteristics of Pteridospermales (Seed Ferns)
- Lyginopteridaceae
- Medullosaceae
- Caytoniaceae
- Glossopteridaceae
UNIT III
- Cycadeoideales (Bennettitales)
- Cordaitales
- Cycadales
- Ginkgoales
UNIT IV
- Coniferales
- Ephedrales
- Welwitschiales
- Gnetales
