In this article we will discuss about:- 1. Habit of Marsilea 2. Structure of Marsilea 3. Reproduction. Habit of Marsilea: The plants are herbaceous with rhizomatous stem, creeping on or just below the soil surface. The species of Marsilea are generally aquatic or amphibious in nature with their roots embedded in mud or damp soil. […]
Marsilea: Habit, Structure and Reproduction
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Ophioglossum: Structure and Reproduction
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In this article we will discuss about the structure and reproduction in Ophioglossum. Structure of Ophioglossum: Sporophyte: The sporophyte is differentiated into a subterranean rhizome with roots and spirally arranged leaves bearing sporangiferous spike (Fig. 7.92A). Stem: The stem is represented by a short, erect, subterranean rhizome. But in epiphytic species, it is horizontal and […]
Calamites: Habit, Sub-Genera and Structure
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In this article we will discuss about:- 1. Habit of Calamites 2. Sub-Genera of Calamites 3. Structure. Habit of Calamites: The name Catamites was first proposed by Suckow (1784) and later in 1828, Brongniart established its relationship with Equisetum. Catamites was a tall tree that attained a height of about 33 ft (10 m). The […]
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