Biology · Plant Taxonomy
A 19th-century phycologist described a soil-dwelling cyanobacterium Nostoc arcus and cited three herbarium sheets (X, Y, and Z) collected from different deserts, but no holotype was designated. In 2024, a taxonomist intended to stabilize the name and selected sheet Z as the reference specimen due to better morphological clarity. What nomenclatural task is the taxonomist performing under the International Code of Nomenclature (ICN)?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Designating a neotype because the original material was not sufficient.
- 2Designating a holotype because the best specimen is being chosen.
- 3Designating a lectotype because the original material consisted of syntypes.✓
- 4Designating an epitype because morphological details are clear.
Correct answer
Designating a lectotype because the original material consisted of syntypes.
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