In this article we will discuss about the vegetative and sexual modes of reproduction in Anthoceros with the help of diagrams. Vegetative Reproduction in Anthoceros: Vegetative Propagation takes Place by the following Four Methods: (a) By Progressive Death and Decay of the Older Parts of the Thallus (Fragmentation): Vegetative reproduction often rakes place by the decay of the older [...]
In this article we will discuss about the structure of Pogonatum with the help of diagrams. External Features of Pogonatum: The gametophyte is perrenial, differentiates into a rhizomatous basal portion and aerial upright shoots (Fig. 6.54A). The basal portion bears numerous rhizoids. The rhizoids are multicellular, elongated, thick-walled with oblique septa and are twisted together in a rope-like manner to [...]
In this article we will discuss about the structure of Marchantia with the help of diagrams. External Structure of Marchantia: The gametophyte of Marchantia is a dichotomously branched, prostrate, dorsiventral thallus (Fig. 6.8). The dorsal surface of the thallus shows many regular rhomboidal or polygonal areas (Fig. 6.9A). Each area has a pore at the center. A distinct median groove [...]