in this article we will discuss about the modes of reproduction in psilotum with the help of diagrams. Stout aerial branches bear large conspicuous sporangia (Fig. 7.1 A). Each sporangium is a 3-lobed structure (Fig. 7. 1B, C). It is borne on a forked appendage. It has been described as: (a) Trilocular sporangium (b) Trisporangiate […]
Reproduction in Psilotum (With Diagram) | Pteridophytes | Botany
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Diagram of Psilophytales | Pteridophytes | Botany
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An earliest record of vascular plants is from Devonian of Canada (Gaspe Peninsula, Quebec). Although the compressions were fragmentary, a reconstruction revealed slender axes arising from a subterranean rhizome system (Fig. 7.3A). The rhizome lacked roots but had rhizoids. The aerial axes were dichotomously branched with scale-like appendages and terminated into sporangia. Because of its […]
Micropropagation of Ferns for Commerce and Industry | Pteridophytes | Botany
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In this article we will discuss about the micropropagation of ferns for commerce and industry. Pteridophytes, in general and ferns in particular, occupy a place of prominence amongst ornamental plants. This is basically because of their evergreen foliage and its elegance. Since time immemorial, ferns have been an object of beauty and human fascination. Ferns […]