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Syllabus Topic : Systematic Position of Selaginella, , , , I 2.3 Systematic Position of Selaginella, DY Table 2.3.1 : Systematic Position of Selaginella, , ‘Division | Lepidophyta The sporophytic plant body differentiated into root, stem and leaves., 3 The stems herbaceous and show dichotomous branching., The leaves are small (microphyllous), and simple., , Secondary growth is absent., , , , , , ' The sporangia are borne singly on the adaxial surface of sporophylls., . The sporophylls are aggregated into strobili., , Lycopodinae Characters same as that of Division., , Selaginellales | 1. The sporophytic plants are herbaceous., 2. The stems and roots do not show secondary thickenings., 3. The leaves are microphyllous and ligulate., , 4. The sporophylls are aggregated into strobili that are borne at the, apically on the stem., , 5. They are heterosporous., 6. The gametophytes are highly reduced and areunisexual., Selaginellaceae | 1. Sporophyte differentiated into root, stem and leaves., , 2. Female gametophyte released from the megasporangium during some, , DOP wD ee, , , , stage of development.
