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Grade:12th Pass

1 Answers

Simran Vinaik
askIITians Faculty 1231 Points
3 years ago
Holotype: The single specimen designated as the type of a species by the original author at the time the species name and description was published.

Isotype: A duplicate specimen of the holotype.

Syntype: Any of two or more specimens listed in the original description of a taxon when a holotype was not designated.

Isosyntype: A duplicate of a syntype.

Lectotype: A specimen chosen by a later researcher to serve as if it were the holotype. It is chosen from among the specimens available to the original publishing author (the isotypes, syntypes and/or paratypes) of a scientific name when the holotype was either lost or destroyed, or when no holotype was designated.

Neotype: A specimen chosen by a later researcher to serve in place of a holotype when all specimens available to the original publishing author of a scientific name have been lost or destroyed.

Topotype: A specimen of a plant collected from the same locality as the holotype and usually on a different date.

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