The below mentioned article provides biology notes on lower fungi. They have comparatively a simple thallus which in some is unicellular and in others filamentous (mycelium). The septa usually remain suppressed in the actively growing vegetative mycelium. They reproduce asexually by sporangiospores (generally motile, rarely non-motile), rarely by conidia. The early mycologists placed the lower fungi in a single class [...]
In this article we will discuss about the classification of lower fungi. The modern mycologists consider that the class Phycomycetes is not a natural group of closely related forms. Numerous new proposals for regrouping them are thus forthcoming. Sparrow (1958-59) suggested that the order Plasmodiophorales which includes the endoparasitic slime molds should be given the rank of a class Plasmodiophoromycetes [...]
In this article we will discuss about the evolution of thallus in lower fungi with the help of diagrams. In the simplest and primitive members, which are aquatic, there is no mycelium. The thallus in these forms is microscopic and unicellular. In Olpidium endogenum, it consists of a tiny mass of naked, uninucleate protoplast which enters the host cell, enlarges [...]