Tag Archives | Phyllum Marchantiophyta

Structure of Riccia (With Diagram)

In this article we will discuss about the structure of Riccia with the help of diagrams. External Structures of Riccia: The gametophytic plant body of Riccia is a dichotomously branched dorsiventral prostrate thallus. In terrestrial habits, the plants usually occur in a rosette form due to the presence of a number of dichotomies that grow together from one place (Fig. [...]

By |2016-08-24T10:16:50+00:00August 24, 2016|Bryophyta|Comments Off on Structure of Riccia (With Diagram)

Structure of Marchantia (With Diagram)

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 [...]

By |2016-08-24T10:16:50+00:00August 24, 2016|Bryophytes|Comments Off on Structure of Marchantia (With Diagram)

Reproduction in Riccia (With Diagram)

In this article we will discuss about the vegetative and sexual modes of reproduction in Riccia. Vegetative Reproduction: Vegetative Repro­duction of Riccia takes place by the following methods: (a) By Progressive Death and Decay of the Older Parts of the Thallus (Fragmentation): Vege­tative propagation is taking place usually by the continuous growth from the growing point. The older basal parts [...]

By |2016-08-24T10:16:50+00:00August 24, 2016|Bryophytes|Comments Off on Reproduction in Riccia (With Diagram)
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