This document provides a classification of fungi into four divisions, several subdivisions and classes, and numerous orders. It breaks fungi down into the kingdoms of Mycetae and divisions of Gymnomycota, Mastigomycota, and Amastigomycota. Many classes of fungi are identified within these divisions, such as Ascomycetes, Basidiomycetes, and Deuteromycetes. The classification system organizes fungi in a hierarchical manner from kingdom down to order.

1. Alexopoulus C. J. and C. W. Mims
(1979) Classification of Fungi
Dr. K. Kannathasan
Assistant Professor of Botany
APA COLLEGE OF ARTS & CULTURE,
PALANI 624 601

2. Kingdom: Mycetae
Division I: Gymnomycota Division II: Mastigomycota Division III: Amastigomycota
S.Div. I: Acrasiogymnomycotina S.Div. I: Haplomastigomycotina S.Div. I:Zygomycotina
Class 1: Acrosiomycetes
S.Class 1: Acrosiomycetidae
Order 1: Acrosiales
S. Class 2 : Dictyosteliomycetidae
Order 1: Dictyosteliales
S.Div. II: Plasmodiogymnomycotina
Class 1: Protosteliomycetes
Order 1: Protosteliales
Class 2: Myxomycetes
S.Class 1: Ceratiomyxomycetidae
Order 1: Ceratiomyxales
S.Class 2: Myxogastromycetidae
Order 1: Liceales
Order 2: Echinosteliales
Order 3: Trichiales
Order 4: Physarales
S.Class 3: Stemonitomycetidae
Order 1: Stemonitalales
Class 1: Chytridiomycetes
Order 1: Chytridiales
Order 2: Harpochytriales
Order 3: Blastocladiales
Order 4: Monoblepharidales
Class 2: Hyphochytridiomycetes
Order 1: Hyphochytridiales
Class 3: Plasmodioporomycetes
Order 1: Plasmodioporales
S.Div. II: Diplomastigomycotina
Class 1: Oomycetes
Order 1: Lagenidiales
Order 2: Saprolegeniales
Order 3: Leptomitales
Order 4: Peronospales
Class 1: Zygomycetes
Order 1: Mucorales
Order 2: Entomophthorales
Order 3: Zoopagales
Class 2 :Trichomycetes
Order 1: Harpellales
Order 2: Amoebidiales
Order 3: Acellariales
Order 4: Eccrinales
S.Div. II: Ascomycotina
Class 1: Ascomycetes
S.Class 1: Hemiascomycetidae
Order 1: Protomycetales
Order 2: Endomycetales
Order 3: Taphrinales
S.Class 2: Plectomycetidae
Order 1: Ascospherales
Order 2: Elaphomycetales
Order 3: Onygenales
Order 4: Eurotiales
Order 5: Microascales
Continued….

3. S.Class 3: Hymenoascomycetidae
Order 1: Erysiphales
Order 2: Meliolales
S.Class 4: Laboulbeniomycetidae
Order 1: Laboulbeniales
Order 2: Spathulosporales
S.Class 5: Loculoascomycetidae
Order 1: Myriangiales
Order 2: Dothidiales
Order 3: Pleosporales
Order 4: Hysteriales
Order 5: Hemisphaeriales
S.Div. III: Basidiomycotina
Class 1: Basidiomycetes
Order 1: Aphyllophorales
S.Class 2: Phragmobasidiomycetidae
S.Class 1: Holobasidiomycetidae
Order 2: Agaricales
Order 3: Exobasidiales
Order 4: Dacrymycetales
Order 5:Tulasnellales
Order 6:Brachybasidiales
Order 7: Hymenogastrales
Order 8: Sclerodermatales
Order 9: Tulastomatales
Order 10: Lycoperdales
Order 11: Phallales
Order 12: Nidulariales
Order 1: Tremellales
Order 2: Auriculariales
Order 3: Septobasidiales
S.Class 3: Teliomycetidae
Order 1: Tremellales
Order 2: Ustilaginales
S.Div. IV: Deuteromycotina
Form Class 1: Deuteromycetes
Form S.Class 1: Blastomycetidae
Form Order 1: Sporobolomycetales
Form Order 2: Cryptococcales
Form S.Class 2: Coelomycetidae
Form Order 1: Sphaeropsidales
Form S.Class 3:Hyphomycetidae
Form Order 2: Melanconiales
Form Order 1: Moniliales
Form Order 2: Agonomycetales
Reference: Alexopoulus, C. J. and C. W. Mims, 1979. Introductory Mycology, 3rd Edition, Wiley Eastern Ltd., New Delhi