1. Taxonomy deals with naming and classifying organisms using scientific names. Fungi were previously named under the International Code of Botanical Nomenclature but are now governed by the International Code of Nomenclature for algae, fungi, and plants. 2. Each fungus has a unique scientific name in Latin indicating its taxonomic position. Names follow the binomial system of genus and specific epithet. 3. Carolus Linnaeus established the binomial nomenclature system and hierarchical taxonomic ranks including kingdom, phylum, class, order, family, genus and species.

1. Taxonomic rules and regulations for
naming of fungi and fungi like organisms
N. H. SHANKAR REDDY
1ST , Ph.D PLANT PATHOLOGY
ANNAMALAI UNIVERSITY

2. • Taxonomy is a part of biological science which deals with the study of naming
and classification of organisms
• The nomenclature is the branch of systematics that determines the correct
scientific name for taxon. The naming of fungi was previously governed by
International Code of Botanical Nomenclature (ICBN).
Each fungus has unique scientific name that indicates its taxonomic
placement among other organisms. The scientific names are Latin names assignee to
particular fungus based on binomial system of nomenclature of to identify
organisms throughout the world. The first part is binomial name is the genus and the
second is the Specific species the genus and species have no fixed endings. The
genus name maybe common to several species, but the combination applies to only
one species in the entire system of classification.

3. Presently nomenclature codes govern the naming of:
1. Algae, Fungi and Plants– International Code of Nomenclature for
algae, fungi, and plants (ICN), which in July 2011 replaced
the International Code of Botanical Nomenclature (ICBN) and the
earlier International Rules of Botanical Nomenclature.
2. Animals – International Code of Zoological Nomenclature (ICZN)
3. Bacteria and Archaea– International Code of Nomenclature of
Prokaryotes (ICNP), which in 2008 replaced the International Code of
Nomenclature of Bacteria (ICNB)
4. Viruses – The International Code of Virus Classification and
Nomenclature (ICVCN)

4. Carolus van Linnaeus
• Father of Taxonomy
• Eructed “binominal system of
nomenclature”
• Grouped the living thing into
hierarchical categories
• Introduced seven level of classification

5. Seven level of classification
Kingdom
Phylum
Class
Order
Family
Genus
Species

6. The rules of writing scientific names
• Binomial system – Use two names, generic name and species
name. the genus and species have no fixed endings
• Trinomial nomenclature – Add a third name to the binomial to
provide further information of the organism (eg – forma
specialis, race, pathovar)
• Author’s name – Place the name of the taxonomists who were
the first person who gave the names to given organism and the
end of the binomial, and abbreviate

7. Guidelines for writing scientific names
• Capitalize first letter of generic name, while the rest, including whole of species,
in a small cases. Leave a single space between genus name and species name.
in case where the author’s name is to be included use standard abbreviation for
the author name.
• Use Italics for genus name and species name, but not the author name, in hand
written manuscript, or when use a type writer with no Italics, underline that
are to be italicized. Name lower the species level are to be treated in the same
way as the binomial, i.e. italicized note that the whole subspecies, forma
specials, race, variety, etc. which are abbreviated are not italicized
• Eg – Fusarium oxysporum f.sp. vasinfectum (G.F.A tk) W.C. Synder & H. N.
Hansen

8. According to the International Code of Botanical nomenclature
(ICBN), the following ‘suffixes’ are used for phyla and other
categories of a fungal taxon
Phylum mycota
Sub phylum mycotina
Class mycetes
Subclass mycetidae
Order ales
Family aceae Phylum Basidiomycota
Sub phylum Basidiomycotina
Class puccinioycetes
Subclass Puccinioycetidae
Order Pucciniales
Family Pucciniaceae
Example - Taxonomic classification of wheat stem rust

9. Types and Nomenclature
Holotype – The single specimen or illustration that the author(s)
clearly indicated to be the nomenclatural type of a name.
Lectotype –A specimen or illustration designated from the original
material as the nomenclatural type when there was no holotype
specified or the holotype has been lost or destroyed.
Isotype – A duplicate of the holotype.
Syntype – Any specimen (or illustration) cited in the original
description when there is no holotype, or any one of two or more
specimens simultaneously designated as types.

10. Paratype – Any specimen (or illustration) cited in
the original description that is not the holotype nor
an isotype, nor one of the syntypes.
Neotype – A specimen or illustration selected to serve
as nomenclatural type if no material from the original
description is available.
Epitype – A specimen or illustration selected to
serve as an interpretative type, usually when
another kind of type does not show the critical
features needed for identification.