In this article we will discuss about the morphology of selaginella with the help of diagrams. Selaginella with about 700 species is worldwide (tropics to subarctic) in distribution. It is abundant in tropics, with a wide range in growth habits and habitats. Many species are flat creepers (Fig. 8.1 A) on the ground (S. kraussiana). […]
Morphology of Selaginella (With Diagram) | Pteridophytes | Botany
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Heterospory in Selaginella | Pteridophytes | Botany
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The production of two kinds of spores differing in structure and function, the smaller one producing the male gametophyte and larger one producing the female gametophyte, is termed heterospory. For the first time distinct heterospory (structural as well as functional) is evident in pteridophytes; but out of several hundred forms in the group, only 9 […]
Reproduction and Development in Ephedra (With Diagram) | Botany
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In this article we will discuss about the process of reproduction and development in ephedra with the help of diagrams. Reproduction in Ephedra: In dioecious Ephedra, male and female cones are borne in the axils of determinate shoots. These may be solitary but most are arranged as dichasial cymes. Male cone of E.foliata consists of […]