In this article we will discuss about the characters of Lepidocarpon. Though Lepidocarpon is known only from its strobilus it has been widely held that it could have been borne on a Lepidophlois type of stem. The fossils of Lepidocarpon have been obtained from the coal strata in England and U.S.A. The strobili were mososporangiate […]
Characters of Lepidocarpon | Pteridophytes
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Calamites: Features and Structure | Botany
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In this article we will discuss about the external features and internal structure of calamites. External Features of Calamites: The calamitean fossils range from pith casts, stems, twigs and leaves to strobili. The stem is known as Calamities, leafy twigs are called An nularia, and fructification is known as Calamostachys. The plant body of Calamites […]
Azolla: Gametophyte and Phylogeny | Botany
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After reading this article we will learn about:- 1. Sporophyte of Azolla 2. Gametophyte of Azolla 3. Phylogeny. Sporophyte of Azolla: The sporophyte is extremely small when compared with Marsilea and Salvinia. It is distinguishable into stem, leaves and roots. The stem is often called the rhizome. It is profusely branched and on its upper […]
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