In this article we will discuss about the anatomy of psilotum with the help of a suitable diagram. Growth of rhizome and aerial branches takes place by divisions of a single apical cell. During dichotomy it divides equally, forming two apical cells which result in two meristems. Internal structure of rhizome varies with its diameter. The slender rhizome (about 1 [...]
In this article we will discuss about the anatomy of selaginella with the help of a suitable diagram. Apical growth takes place by a single cell and its derivatives or by an apical meristem, comprising a group of cells. Branching occurs by a bifurcation of shoot apex into two apices, one of which overtops the other resulting in anistomous branching. [...]
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). In some species the plants [...]