In this article we will discuss about:- 1. Habit and Habitat of Selaginella 2. External Morphology of Selaginella 3. Internal Structure 4. Reproduction 5. Life Cycle Patterns. Habit and Habitat of Selaginella: Selaginella is the only living genus of the order Selaginellales and is commonly known as 'spike moss' or 'small club moss'. It is a large genus comprising of [...]
In this article we will discuss about the anatomy of selaginella. Cut thin transverse sections of stem, root, rhizophore and root by inserting the material in pith, stain them separately in safranin-fast green combination, mount in glycerine and observe under microscope. Also compare your preparations from the prepared permanent slides of these parts. T. S. Stem: 1. Anatomically, it is [...]
Observe the external features of the plant, and arrangement, types and shape of leaf, ligule, rhizophore and roots. 1. Plant body is sporophytic and the sporophyte is evergreen and perennial. 2. Most of the species are prostrate but Selaginella trachyphylla is sub-erect and S.erythropus is erect (Fig. 208). 3. Size of the sporophyte ranges from few centimetres to several feet [...]