Ferns of Thailand, Laos and Cambodia

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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.

	Ferns of Thailand, Laos and Cambodia
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Pteris multifida Poir. Warning: count(): Parameter must be an array or an object that implements Countable in C:\Data\serverroots\htdocs\ThaiFerns\factsheets\functions.php on line 17 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. Warning: count(): Parameter must be an array or an object that implements Countable in C:\Data\serverroots\htdocs\ThaiFerns\factsheets\functions.php on line 17
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