List of four important fossil bryophytes:- 1. Fossil Hepatophyta 2. Fossil Anthocerotophyta 3. Fossil Bryophyta 4. Problematic Fossil Bryophytes. 1. Fossil Hepatophyta (Marchantiophyta): The earliest record of vegetative fossil bryophyte remains is the liverwort from the Upper Devonian of New York which has been assigned to the form-genus Pallavicinites, (= Hepaticites) devonicus (Fig. 6.60A). The reproductive structures are not found [...]
The upcoming discussion will update you about the difference between Marchantiophyta, Anthocerotophyta and Bryophyta. Difference # Marchantiophyta: 1. Thallus or leafy shoot; thallus simple or with air chambers. 2. In leafy shoot, leaves arranged in three rows, one ventral and two lateral. 3. Leaves divided into two or more lobes, and without midvein. 4. Rhizoids in marchantiophyta are hyaline, one-celled, [...]
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 [...]