Asplenium scortechinii Bedd.

Family

Aspleniaceae

Nomenclature

Asplenium scortechinii Bedd., J. Bot. 1887: 322; Bedd., Suppl. Ferns Brit. Ind.: 27. 1892; Tardieu & C.Chr., Fl. Indo-Chine 7(2): 220. 1940; Holttum, Rev. Fl. Malaya ed. 1, 2: 420. 1955 [‘1954’]; Holttum, Dansk Bot. Ark. 20: 28. 1961; Tagawa & K.Iwats., SouthE. Asian Stud. 5: 85. 1967; Tagawa & K.Iwats., Fl. Thailand 3: 271. 1985; Boonkerd & Pollawatn, Pterid. Thailand: 177. 2000.

Asplenium annamense Christ, J. Bot. 21: 232, 264. 1908; Tardieu, Aspl. Tonkin: 28, pl. 1, f. 1–2. 1932.

Description

Epiphytic or lithophytic. Rhizome short, suberect, bearing a few to several fronds in a tuft, scaly near apex; scales oblong-lanceolate, gradually narrowing towards acute apex, about 7 by 3 mm, dark brown centrally, paler at edges, sometimes bearing irregular projections at margin, clathrate. Stipes not distinct from lamina, winged, stramineous or brownish. Frond simple, linear, 24–60 by 1.5–2.8 cm, broadest at middle, narrowing towards caudately long-acuminate apex, attenuate towards base, with shallow serration at margin at least in upper part or subentire; chartaceous, minutely scaly on midrib; midrib raised below, flat above, rather thick; lateral veins forming angles of 70–80° to midrib, simple or forked. Sori elongate along simple veins or acroscopic branches of forked ones, from near midrib to about 2/3 way towards edge of frond; indusia entire, up to 1.3 mm broad, firm .

Distribution in Thailand

NORTHERN: Phitsanulok; NORTH-EASTERN: Loei; SOUTH-EASTERN: Chanthaburi; PENINSULAR: Nakhon Si Thammarat, Trang, Pattani, Yala.

Distribution in Laos

Champasak, Salavan.

Distribution in Cambodia

Kompong Chhnang.

Wider Distribution

Indochina and Peninsular Malaysia.

Ecology

On mossy tree-trunks or on mossy rocks usually in dense evergreen forests at 900–1600 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. 5083, Phitsanulok, Phu Hin Rong Kla National Park (E).

Voucher specimens - Laos

Poilane 15700 & 15808, Champasak, Boloven Plateau (P); Poilane16131, Salavan, Pou Set (P).

Voucher specimens - Cambodia

Poilane 28732 & 28741, Kompong Chhnang, Phnom Chom (P).

Rhizome and stipe bases

Rhizome and stipe bases

Crozier

Crozier

Whole plant

Whole plant

Upper surface of frond

Upper surface of frond

Lower surface of frond

Lower surface of frond

Venation

Venation

Sori

Sori

Sori

Sori

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.