Family

Lindsaeaceae

Nomenclature

Tapeinidium luzonicum (Hook.) K.U.Kramer, Blumea 15: 552. 1968; Kramer, Fl. Males., Ser. II, Pterid. 1: 191, f. 11. 1971; Kramer, Gard. Bull. Singapore 26: 8. 1972; Tagawa & K.Iwats., Fl. Thailand 3: 146, f. 10.5. 1985; Boonkerd & Pollawatn, Pterid. Thailand: 96. 2000. – Davallia luzonica Hook., Sp. Fil. 1: 174, t. 60B, f. 2, 3 & 5. 1845.

Tapeinidium biserratum auct. non (Blume) Alderw.: Holttum, Rev. Fl. Malaya ed. 1, 2: 339, f. 197. 1955 [‘1954’]; Tagawa & K.Iwats., SouthE. Asian Stud. 5: 75. 1967.

Description

Rhizome creeping, about 4 mm diam., bearing fronds more than 1 cm apart, nearly black, densely scaly throughout; scales up to 4 by 0.3 mm, brown, shining, stiff. Stipes up to 40 cm long, stramineous or purplish, darker and scaly towards base, grooved on adaxial surface of upper part. Laminae bipinnate to tripinnatifid, about 35 by 30 cm; rachis like the upper part of stipes, pale green; lateral pinnae more than 20 pairs, lower several pairs larger, 3–6 cm apart, shortly stalked, lanceolate to oblong-lanceolate, caudately acuminate at apex, cuneate at base, up to 17 by 5 cm at widest middle portion; upper ones gradually becoming smaller; pinnules sessile, lanceolate to narrowly oblong, up to 3.5 cm long, 4 mm broad, shallowly lobed at margin, subcoriaceous; veins forked, hardly visible. Sori as in the preceding species .

Distribution in Thailand

PENINSULAR: Nakhon Si Thammarat, Trang.

Wider Distribution

W and C Malesia.

Ecology

On mountain slopes in dense evergreen forests & at about 1400 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. 1993, Trang, Phu Pha Mek (A, BKF).