Lepisorus contortus (Christ) Ching
Lepisorus contortus (Christ) Ching, Bull. Fan Mem. Inst. Biol. 4: 90. 1933; Tagawa & K.Iwats., Fl. Thailand 3: 513, f. 51.3. 1989; Boonkerd & Pollawatn, Pterid. Thailand: 273. 2000. – Polypodium lineare var. contortum Christ, Nuov. Giorn. Bot. Soc. Ital. N.S. 4: 98, pl. 1, f. 3. 1897. – Polypodium contortum Christ, Bot. Gaz. 51: 347. 1911. – Pleopeltis contorta (Christ) Alston & Bonner, Candollea 15: 209. 1956; Tagawa & K.Iwats., SouthE. Asian Stud. 5: 49. 1967.
Rhizome creeping, about 2.5 mm diam., bearing fronds less than 0.5 cm apart, densely scaly throughout; scales dark brown, slightly clathrate, minutely toothed at margin, oblong-subdeltoid, gradually narrowing towards attenuate apex, up to 2 by 0.7 mm. Stipes very short, indistinct. Laminae linear, attenuate towards both ends, in mature large laminae about 15 cm by 0.7 cm, the margin more or less recurved; coriaceous; veins hardly visible, copiously anastomosing. Sori round, medial, oblong. Spores monolete .
Distribution in Thailand
NORTHERN: Chiang Mai.
Himalayas, Tibet and China.
On mossy tree trunks in dense mountain forests at high altitudes.
Proposed IUCN Conservation Assessment
Least Concern (LC). This species is widespread and not under any known threat.
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