Q.Describe the salient features of class Phycomycetes and class Ascomycetes under Kingdom Fungi, giving one example of each.

Kingdom Fungi comprises eukaryotic heterotrophs with extracellular digestion, typically found in warm, humid places. Their body is either unicellular or built of thread-like hyphae forming a mycelium, which may be septate or non-septate (coenocytic, multinucleate); the fungal cell wall is made of chitin. Fungi reproduce both sexually and asexually (fragmentation, fission, budding) and are mostly saprophytic, though some are parasitic or predatory; some form symbioses — with algae as lichens, or with plant roots as mycorrhiza. They are classified into four groups: Phycomycetes ("algal fungi," aseptate coenocytic hyphae, e.g. Mucor, Rhizopus, Albugo); Ascomycetes ("sac fungi," branched septate hyphae, e.g. Aspergillus, Penicillium, Claviceps, Neurospora, Saccharomyces); Basidiomycetes ("club fungi," e.g. Agaricus, Ganoderma, Ustilago, Puccinia); and Deuteromycetes ("imperfect fungi," reproducing only asexually, e.g. Alternaria, * …