A fungus has branched septate mycelium, generally lacks asexual spores and produces four spores externally on a speciali
Basidiomycetes possess branched, septate mycelium and generally lack asexual spores. Karyogamy and meiosis occur in a basidium, usually producing four basidiospores externally.
Ref: NCERT Class 11 Biology Chapter 2: Biological Classification Fungi - Phycomycetes Ascomycetes Basidiomycetes