In this article we will discuss about:- 1. Occurrence of Polysiphonia 2. Cell Structure of Polysiphonia 3. Growth 4. Life Cycle. Occurrence of Polysiphonia: Polysiphonia is a large genus with about 200 species. The genus is represented in India by about 16 species found is southern and western coasts of India. Some common Indian species are P. ferulacea, P. urceolata [...]
In this article we will discuss about the thallus structure of polysiphonia with the help of suitable diagrams. The thallus is filamentous, red or purple red in colour. The thallus is multi-axial and all cells are connected by pit connections hence, the name given is Polysiphonia. Due to continuous branching and re-branching the thallus has feathery appearance (Fig. 1A). The [...]
In this article we will discuss about the external morphology of polysiphonia. 1. Plant body is bush like (Figs. 47, 48) and red or dark blue-coloured. 2. It is multiaxial in habit and few centimeters to several inches in length. 3. Prostrate part of the thallus is attached to the substratum with the help of many elongated and aseptate rhizoids. [...]