The ICBN recognizes seven kinds of types (Article 9)
1.HOLOTYPE- A single specimen (single herbarium )or illustration used or designated by the author and the name is based as the nomenclatural type at the time of publication of the name of the taxon. (PART B -2017 DEC CSIR NET )
2.ISOTYPE -It is the duplicate of holotype specimen collected at the same time ,by the same person and from the same population.
3.LECTOTYPE -When no holotype was indicated or holotype is missing ,lost or damaged then lectotype is the specimen used as a nomenclatural type which was taken from the orginal material.
4.SYNTYPE-Any one of two or more specimens that is listed in a species description where no holotype was designated.
5.PARATYPE- These are not name bearing types. When the original description designated a holotype, there may still be additional specimens listed in the type series and those are termed paratypes.
6.NEOTYPE- Belonging to non original collection .A neotype is a specimen later selected to serve as the single type specimen when an original holotype has been lost or destroyed or where the original author never cited a specimen.
7.EPITYPE -Epitype can not be a part of original material. An additional, clarifying type(specimen or illustration) of a species or lower-order taxon , provided when the holotype and paratypes from the original classification are demonstrably ambiguous or insufficient.
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1.HOLOTYPE- A single specimen (single herbarium )or illustration used or designated by the author and the name is based as the nomenclatural type at the time of publication of the name of the taxon. (PART B -2017 DEC CSIR NET )
2.ISOTYPE -It is the duplicate of holotype specimen collected at the same time ,by the same person and from the same population.
3.LECTOTYPE -When no holotype was indicated or holotype is missing ,lost or damaged then lectotype is the specimen used as a nomenclatural type which was taken from the orginal material.
4.SYNTYPE-Any one of two or more specimens that is listed in a species description where no holotype was designated.
5.PARATYPE- These are not name bearing types. When the original description designated a holotype, there may still be additional specimens listed in the type series and those are termed paratypes.
6.NEOTYPE- Belonging to non original collection .A neotype is a specimen later selected to serve as the single type specimen when an original holotype has been lost or destroyed or where the original author never cited a specimen.
7.EPITYPE -Epitype can not be a part of original material. An additional, clarifying type(specimen or illustration) of a species or lower-order taxon , provided when the holotype and paratypes from the original classification are demonstrably ambiguous or insufficient.
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