In this article we will discuss about the classification of pteridophyta. 1. Class: Psilotopsida: The members of the class Psilotopsida show close resemblance in fundamental characteristics to the Silurian and Devonian members of Rhyniopsida (e.g., Rhynia, Cooksonia), Zostero- phyllopsida (e.g., Zosterophyllum) and Trimero- phytopsida (e.g., Trimerophyton, Psilophyton). Psilotopsida includes only two living genera viz., Psilotum […]
Classification of Pteridophyta: 4 Classes | Botany
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Selaginella: Habitat, Features and Reproduction
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In this article we will discuss about:- 1. Habit and Habitat of Selaginella 2. Salient Features of Selaginella 3. Structure 4. Reproduction. Habit and Habitat of Selaginella: Selaginella shows considerable variation in size, symmetry and morphology. Mostly they are herbaceous perennials, however, a few are annuals (Selaginella pygmaea). Majority are dorsiventral, prostrate and creeping (Fig. […]
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