In this article we will discuss about the structure of Porella with the help of diagrams. External Structure of Porella: The gametophyte of Porella is flat, dorsiventral and foliose (Fig. 6.21 A). The prostrate stem or axis is bi- or tripinnately branched. There are three rows of leaves arranged on the stem, two dorsal rows and one ventral row. The [...]
In this article we will discuss about the reproduction in Porella with the help of diagrams. Vegetative Reproduction in Porella: Porella reproduces vegetatively by the following two methods: (a) By Progressive Death and Decay of the Gametophyte: The apical growth of the thallus is accomÂpanied by the progressive death and decay of the older parts of the thallus and consequent [...]
In this article we will discuss about the vegetative and sexual modes of reproduction in Marchantia. Vegetative Reproduction in Marchantia: Vegetative propagation of Marchantia takes place by the following methods: (a) By progressive Death and Decay of the Thallus: Like Riccia, the vegetative propagation of Marchantia is quite common which takes place by the unlimited growth of the branches and [...]