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 [...]
In this article we will discuss about the three divisions of bryophytes:- 1. Marchantiophyta 2. Anthocerotophyta 3. Bryophyta. Phyllum (Division) I: Marchantiophyta: 1. Gametophytes are either flattened thalli or leafy shoots. 2. The flattened ribbon-like to leaf-like thallus of the thallose liverworts are either simple or structurally differentiated into a system of dorsal air chambers and ventral storage tissues. 3. [...]
In this article we will discuss about:- 1. History of Bryophytes 2. Origin of Bryophytes 3. Meaning 4. Characteristics 5. Vegetative Reproduction 6. Ecological Importance 7. Affinities 8. Life Cycle. History of Bryophytes: The fossil history of the bryophytes is very meagre due to the fragile nature of the plant body. The stems orthalli do not possess lignified vascular tissue [...]