Microlepia trapeziformis (Roxb.) Kuhn
Microlepia trapeziformis (Roxb.) Kunh, Chaetopterides: 347. 1882; Tardieu & C.Chr., Fl. Indo-Chine 7(2): 96. 1939; Holttum, Rev. Fl. Malaya ed. 1, 2: 313, f. 181. 1955 [‘1954’]; Sledge, Kew Bull. 11: 526. 1956; Ching, Fl. Reipubl. Popularis Sin. 2: 229. 1959; Tagawa & K.Iwats., SouthE. Asian Stud. 5: 72. 1967; Tagawa & K.Iwats., Fl. Thailand 3: 117, f. 7.5. 1979; Boonkerd & Pollawatn, Pterid. Thailand: 89. 2000. – Davallia trapeziformis Roxb., Calcutta J. Nat. Hist. 4: 516. 1844.
Rhizome creeping, glabrescent or covered with hairs at apex, to 1 cm diam. Stipes stramineous, a little swollen at base, glabrous throughout, 60–80 cm long; lamina oblong with long-acuminate apex, tripinnate-quadripinnatifid, up to 70 cm long, 50 cm wide; rachis like the upper parts of stipes, more or less hairy on underside, glabrous on the grooved upperside; the larger pinnae subdeltoid to oblong-subdeltoid, long acuminate at apex, with stalks more than 1 cm long, up to 30 cm long, 15 cm wide, the upper pinnae gradually reduced in size; costae at angle of 45° to rachis, densely hairy on underside, glabrous on grooved upperside; the larger pinnules oblong-subdeltoid, acuminate at apex, unequally cuneate at base, shortly but distinctly stalked; ultimate segments of larger pinnules oblong, oblique or spathulate, round at apex, unequally cuneate at sessile base, subentire or lobed; veins pinnate, more or less distinct on both surfaces, distinctly strigose-hairy beneath, glabrous on laminar surface, deep green above and green below. Sori between crenae of lobes, slightly intramarginal; indusia cup-shaped, hairy .
Distribution in Thailand
NORTHERN: Mae Hong Son, Chiang Mai, Lampang; SOUTH-WESTERN: Kanchanaburi.
Sri Lanka, E Himalaya to SW China, Indochina, southwards to Peninsular Malaysia, Sumatra and Java.
On mountain slopes in dense lower montane forest at 1300–2200 m alt.
Proposed IUCN Conservation Assessment
Least Concern (LC). This species is widespread and not under any known threat.
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.