Family

Polypodiaceae

Nomenclature

Lepisorus sinensis (Christ) Ching, Bull. Fan Mem. Inst. Biol. 4: 63. 1933. – Neurodium sinense Christ, Bull. Herb. Boiss. 6: 880. 1898; Tagawa & K.Iwats., Fl. Thailand 3: 515, f. 51.8 & 51.9. 1989; Boonkerd & Pollawatn, Pterid. Thailand: 275. 2000. – Pleopeltis sinensis (Christ) Copel., Gen. Fil.: 184. 1947; Tagawa & K.Iwats., SouthE. Asian Stud. 5: 50. 1967.

Description

Rhizome creeping, about 2 mm diam., densely scaly; scales gradually narrowing from the broadest attachment point towards attenuate apex, round at base, dark brown with thick internal walls, the marginal portion clathrate, the margin toothed, up to 3 by 0.7 mm. Stipes usually 1 cm apart, scaly at base, narrowly winged nearly to the base, stramineous. Laminae linear, 8–20 by 0.7–1.7 cm, broadest at 1/3 way from base, gradually narrowing towards both ends, attenuate at apex; midrib raised on both surfaces; subcoriaceous, green, bearing sparse small peltate hairs appressed to both surfaces. Sori elongate along medial or submarginal strands, often interrupted, usually confined to the upper half of fronds, about 2 mm broad at maturity. Spores monolete .

Distribution in Thailand

NORTHERN: Chiang Mai.

Wider Distribution

Bhutan and SW China (Yunnan).

Ecology

On mossy branches of trees or on mossy rocks in dense evergreen forests on ridges at 1500–2000 m alt., in the North.

Proposed IUCN Conservation Assessment

Least Concern (LC). This species is widespread outside of Thailand and not under any known threat.

Voucher specimens - Thailand

Middleton et al. 5056, Chiang Mai, Doi Pha Hom Pok National Park (E).