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- Prefer to grow in warm and humid places.

- Unicellular (eg. Yeast) to multicellular filamentous body called mycelium.
- One unit of mycelium called hypha .
- Mycelia maybe coenocytic (no septum) or septate.
- Lichens :– Symbiotic association of fungus and algae.
- Mycorrhiza ;– Symbiotic association of fungi with root of higher plants
eg. Pinus.
- Reproduction :–Vegetative : by fragmentation and by spores.Sexual: by
gametes.

- Three steps in sexual reproduction
1. Plasmogamy :– fusion of protoplasm.
2 .Karyogamy :- fusion of nuclei.
3. Meiosis of zygote.

Phycomycetes –

- Grow on aquatic places or decaying wood or damp places or obligate
parasite.
- Mycelium aseptate, coenocytic.- Reproduction - asexual by zoospores or
aplanospores. Sexual by zygospores.

Ascomycets (sac fungi)-

-Unicellular (eg. Yeast) or multicellular
-Saprophytic or parasitic.
-Maybe coprophillus (growing on dung) eg. peziza.
-Mycelium septate and branched.