Fungi play many vital roles in terrestrial ecosystems. Survey of fungal diversity. Basidiomycota Other fungus-like organisms. A lichen is a symbiotic association between a fungus and an alga. I. Fungi are filamentous, multicellular, haploid organisms.
Fungi play many vital roles in terrestrial ecosystems.
Survey of fungal diversity. Other fungus-like organisms. V. A lichen is a symbiotic association between a fungus and an alga. While hiking, you come across a log that has been partially decomposed. The log is dark brown, and is brittle so that chunks flake off easily in your hand.