Davallia corniculata T.Moore

Family

Davalliaceae

Nomenclature

Davallia corniculata T.Moore, Index Filic.: 292. 1861; Holttum, Rev. Fl. Malaya ed. 1, 2: 359. 1955 [‘1954’]; Tagawa & K.Iwats., SouthE. Asian Stud. 5: 76. 1967; Tagawa & K.Iwats., Fl. Thailand 3: 158, f. 12.2. 1985; Nooteboom, Fl. Males., Ser. II, Ferns and Fern Allies 3: 249. 1998; Boonkerd & Pollawatn, Pterid. Thailand: 233. 2000. – Humata corniculata (T.Moore) M.Kato & Tsutsumi, Acta Phytotax. Geobot. 59(1): 13. 2008. – Type: Lobb 220 (K holo; BM, L), Java

Davallia epiphylla auct. non Sw.: Bedd., Handb. Ferns Brit. India: 60. 1883.

Description

Rhizome long creeping, about 3 mm diam., densely covered with scales, the surface waxy and glaucous; scales more or less patent, gradually narrowing from base towards apex, about 5 mm long, up to 0.8 mm broad, brown or red-brown, ciliate at margin. Stipes brown to pale brown, terete, glabrous, up to 20(–30) cm long. Laminae narrowly subdeltoid, gradually narrowing upwards, up to 30(–50) by 15(–25) cm, tripinnatifid; basal pinnae with short stalk, subdeltoid, gradually narrowing from broadly cuneate base to apex, up to 10 by 5 cm; upper pinnae gradually becoming smaller; pinnules oblong, moderately acute to acuminate, cuneate at base, with acute lobes, sometimes up to 1 mm long, subcoriaceous, light green, brown in dried condition; veins pinnate, false veinlets present. Sori small, at margin of lobes; indusia about 0.3 mm long and wide.

Distribution in Thailand

PENINSULAR: Nakhon Si Thammarat.

Wider Distribution

Peninsular Malaysia, Sumatra and Java: There is a specimen from Bhutan among Beddome collections (BM) but the locality seems to be doubtful.

Ecology

On fallen tree trunks in half-shaded places on ridges 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

Iwatsuki et al. T-8383, Nakhon Si Thammarat, Khao Luang (P).

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