In this article we will discuss about:- 1. Habit of Lepidodendron 2. Internal Structure of Lepidodendron 3. Reproduction. Habit of Lepidodendron: Like other ancient lycopods, Lepidodendron was also tree like in habit (Fig.55). In general appearance it was not unlike that of present day Lycopodium. But in size the genus enormously exceeded the herbaceous Lycopodium. The petrified trunks were sometimes [...]
After reading this article we will learn about:- 1. Sporophyte of Azolla 2. Gametophyte of Azolla 3. Phylogeny. Sporophyte of Azolla: The sporophyte is extremely small when compared with Marsilea and Salvinia. It is distinguishable into stem, leaves and roots. The stem is often called the rhizome. It is profusely branched and on its upper surface is covered with dense [...]
In this article we will discuss about:- 1. Habit and Habitat of Sphagnum 2. Special Features of Sphagnum 3. Affinities. Habit and Habitat of Sphagnum: Sphagnum is represented by about 336 species which are cosmopolitan in distribution. In India, it is represented by about 20 species in Himalayas. These species are aquatic or semiaquatic and grow in dense masses or [...]