In this article we will discuss about the structure and reproduction in Isoetes with the help of diagrams. Structure of Isoetes: Sporophyte: The plant resembles a monocot garlic plant in particular (Fig. 7.59). Isoetes is commonly called 'Quill wort' due to the quill (a large feather)-like structure of the leaves. The plant body consists of a condensed, lobed corm or [...]
In this article we will discuss about the vegetative and sexual modes of reproduction in lycopodium with the help of diagrams. Vegetative Reproduction: Vegetative means of propagation is quite common in the sporophyte of Lycopodium which take place by the following methods: (i) By the Formation of Gemmae or Bulbils: These are modified lateral branches which develop on the stem [...]
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. 7.45) on the surface (e.g., [...]