Loxogramme chinensis Ching
Loxogramme chinensis Ching, Sinensia 1: 13. 1929; Tardieu & C.Chr., Fl. Indo-Chine 7(2): 466. 1941; Tagawa & K.Iwats., SouthE. Asian Stud. 5: 56. 1967; Tagawa & K.Iwats., Fl. Thailand 3: 578. 1989; Boonkerd & Pollawatn, Pterid. Thailand: 277. 2000. – Type: R.C.Ching 7146, N.W. Kwangsi province near the border of Kweichow province, common on the trunks of trees in mixed forest about 4800 ft.
Loxogramme assimilis Ching, Bull. Dept. Biol. Sun Yatsen Univ. 6: 31. 1933; Boonkerd & Pollawatn, Pterid. Thailand: 276. 2000.
Loxogramme lanceolata auct. non (Sw.) C.Presl: Bedd., Handb. Ferns Brit. India: 392. 1883, p.p.; Holttum, Dansk Bot. Ark. 20: 20. 1961.
Rhizome long creeping, slender, about 1.5 mm diam., densely scaly throughout; scales ovate with rather broad tails, up to 3 mm long including tails about 2 mm in length, 0.8 mm broad, deeply cordate, entire, clathrate. Stipes indistinct, densely scaly at base, pale green, narrowly winged to the very base. Laminae linear-lanceolate, acuminate at apex, gradually narrowing and decurrent downwards to the wings of indistinct stipes, up to 20 by 1 cm, edges entire, more or less involute; midrib raised on both surfaces, dark; thick, coriaceous, fleshy, deep green on upper surface, paler beneath, glabrous. Sori nearly parallel to midrib or a little oblique, usually in a single row or often uniting with neighbouring to form linear coenosori, usually 5–10 by 1.5 mm, naked, superficial .
Distribution in Thailand
NORTHERN: Chiang Mai, Chiang Rai; NORTH-EASTERN: Loei; EASTERN: Chaiyaphum.
India (Assam), Bhutan, Upper Burma, S & SW China and N Vietnam.
On mossy tree trunks or on mossy rocks in dense evergreen forests at 1600–2200 m alt.
Proposed IUCN Conservation Assessment
Least Concern (LC). This species is widespread and not under any known threat.
Voucher specimens - Thailand
Middleton et al. 4953, Chiang Mai, Doi Pha Ti Do (E); Middleton et al. 5165, Loei, Phu Luang Wildlife Sanctuary (E).
Habit on tree
Habit on leaf litter covered rock
Frond bases and scales
Upper frond surface
Lower frond surface and sori
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