Pteris multifida Poir.

Family

Pteridaceae, subfamily Pteridoideae

Nomenclature

Pteris multifida Poir., Encycl. (Lamarck). 5: 714. 1804; Tardieu & C.Chr., Fl. Indo-Chine 7(2): 148. 1940; Tagawa & K.Iwats., Acta Phytotax. Geobot. 23: 175. 1969; Tagawa & K.Iwats., Fl. Thailand 3: 254. 1985; Boonkerd & Pollawatn, Pterid. Thailand: 130. 2000.

Description

Rhizome short, creeping, bearing small blackish scales. Stipes stramineous, or darker near base, 4–15 cm long. Laminae bipinnate with long rarely forked pinnules, dimorphic; sterile frond less divided, rachis winged to form the same construction as segments; segments up to 1 cm broad, dentate at margin; fertile frond up to 60 cm long, with stipe and lamina almost equal; segments about 5 mm broad, simple or rarely forked, decurrent at base to form distinct wings on rachis but not on stipe. Sori linear, along the margin of lobes nearly throughout.

Distribution in Thailand

CENTRAL: Bangkok.

Wider Distribution

Indochina, China, Japan and rather rarely in Ryukyus and Taiwan, once from Singapore.

Ecology

Only once collected on stone-walls in Bangkok in 1921.

Proposed IUCN Conservation Assessment

Least Concern (LC). This species is widespread outside of Thailand and not under any known threat.  Its current status within Thailand is uncertain.

Site hosted by the Royal Botanic Garden Edinburgh. Content managed by Stuart Lindsay, Gardens by the Bay, Singapore and David Middleton, Singapore Botanic Gardens. Last updated 16 November 2016.