In this article we will discuss about the evolution of sporophytes and gametophytes in bryophytes. Evolution of Sporophyte in Bryophytes: The sporophyte of bryophytes is called sporogonium which generally consists of a single, terminal sporangium (monosporangiate) with a bulbous foot and with or without an unbranched stalk or seta. The sporogonium is very delicate, short-lived and nutritionally dependent on its [...]
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, [...]