In this article we will discuss about:- 1. Occurrence and Distribution of Equisetum 2. Sporophyte of Equisetum 3. Gametophyte 4. Phylogeny. Occurrence and Distribution of Equisetum: Equisetum is popularly known as horsetail because of its bushy habit. There are about 25 species distributed in all parts of the world except perhaps in Australia and New Zealand. They are found mostly [...]
In this article we will discuss about the anatomy of equisetum. Also learn about its spore-producing organs. Cut thin transverse sections of different plant parts, stain in safranin-fast green combination, mount in glycerine and observe the anatomical details: T. S. Internode of Aerial Sterile Shoot: In a cross-section following structures are visible (Figs. 237,238): 1. It is wavy in outline [...]
In this article we will discuss about the external features of equisetum. 1. Plant body is sporophytic and the sporophyte is a well-branched perennial herb. 2. Size of the plant body ranges from a few centimeters as in Equisetum scirpoides to several metres as in E. giganteum (up to 13 metres). Most of the species are less than a meter [...]