Adiantum incisum

Adiantum incisum is a species of fern in the Vittarioideae subfamily of the Pteridaceae. It is a perennial or lithophyte native to western, southern, and eastern tropical Africa, the Arabian Peninsula, Indian Subcontinent, Myanmar, and south-central China. Its natural habitat is subtropical or tropical moist lowland forests. It is threatened by habitat loss.

Two subspecies are accepted:

• Adiantum incisum subsp. incisum (synonyms Adiantum capillus-gorgonis , A. caudatum var. capillus-gorgonis , A. caudatum var. laciniatum , A. sinicum , and A. vestitum ) – western, southern, and eastern tropical Africa, Arabian Peninsula, Indian Subcontinent, Myanmar, and south-central China
• Adiantum incisum subsp. indicum (synonyms Adiantum indicum A. recurvatum , A. caudatum var. flabellatum , and A. recurvatum ) – India, Myanmar, Nepal, and Sri Lanka

The species is assessed as endangered by the IUCN Red List under the synonym Adiantum indicum, with a distribution limited to China.

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