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 [...]
Everything you need to know about mycorrhizae. Some of the most frequently asked questions are as follows:- Q.1. Who was the first to carry out mycorrhizal study? Ans: Hartig in 1851 is believed to be the first person to study the intracellular net of hyphae in roots without knowing its fungal nature. Its structure, later on was named "Hartig net". [...]