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 […]
Ophioglossum: Structure and Reproduction
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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 […]
Equisetum: Habitat, Structure and Reproduction
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In this article we will discuss about:- 1. Habit and Habitat of Equisetum 2. Structure of Equisetum 3. Reproduction 4. Life Cycle. Habit and Habitat of Equisetum: The plant body of Equisetum has an aerial part and an underground rhizome part (Fig. 7.83). The rhizome is perennial, horizontal, branched and creeping in nature. The aerial […]
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