Antrophyum vittarioides Baker

Family

Antrophyum vittarioides Baker

Nomenclature

Antrophyum vittarioides Baker, J. Bot. 28: 267. 1890.

Antrophyum stenophyllum Baker, Bull. Misc. Inform. Kew 1898: 233. 1898; Tagawa & K.Iwats., Acta Phytotax. Geobot. 25: 21. 1971; Tagawa & K.Iwats., Fl. Thailand 3: 218. 1985; Boonkerd & Pollawatn, Pterid. Thailand: 134. 2000.

Antrophyum sp.: Holttum, Dansk Bot. Ark. 20: 34. 1961.

Description

Epiphytic. Rhizome short, creeping, bearing close fronds, densely scaly throughout; scales oblong-lanceolate, long-acuminate at apex, serrate, about 2.5 by 0.8 mm, dark brown, more or less clathrate with dark cell-walls. Stipes indistinct. Frond narrowly oblanceolate, widest in apical 1/3, gradually narrowing towards acute but not long-tailed apex, long-attenuate towards rhizome, up to 6.5(–20) cm long, 0.7–1 cm broad; costa and veins hardly visible on both surfaces. Sori reticulate, immersed in grooves which are more or less raised on upper surface; paraphyses ribbon-like, curled, brown to darker.

Distribution in Thailand

NORTHERN: Chiang Mai.

Wider Distribution

Southern China, Vietnam.

Ecology

Epiphytic by small streams in dense forests at about 1000 m alt.

Proposed IUCN Conservation Assessment

Least Concern (LC). This species is widespread and not under any known threats.

Voucher specimens - Thailand

Middleton et al. 4956, Chiang Mai, Doi Pha Ti Do (E).

Whole plant

Whole plant

Lower surface of frond

Lower surface of frond

Sori

Sori

Soral grooves

Soral grooves

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