Pteris scabripes Wall. ex J.Agardh
Pteridaceae, subfamily Pteridoideae
Pteris scabripes Wall. ex J.Agardh, Recens. Spec. Pter.: 11. 1839; Holttum, Rev. Fl. Malaya ed. 1, 2: 399, f. 233. 1955 [‘1954’]; Tagawa & K.Iwats., SouthE. Asian Stud. 5: 82. 1967; Tagawa & K.Iwats., Acta Phytotax. Geobot. 23: 55. 1968; Tagawa & K.Iwats., Fl. Thailand 3: 253, f. 20.4. 1985; Boonkerd & Pollawatn, Pterid. Thailand: 131. 2000.
Rhizome short, erect; scales up to 5 mm long, thin but firm, deep brown. Stipes dark castaneous to deep purplish, sparsely scaly at base, puberulous upwards, 25–35 cm long on sterile frond, up to 50 cm on fertile one. Laminae with one or two opposite pairs of lateral pinnae and trifoliolate apical pinna; lateral pinnae simple, forked, or trifoliolate, sessile or adnate, simple pinnae or branches linear-lanceolate, gradually narrowing towards base, caudately long-acuminate at apex, finely dentate at margin, the dentation evident at apical margin, in sterile up to 18 by 2 cm, in fertile up to 22 by less than 1 cm; rachis usually winged by the decurrent base of lamina, subcoriaceous, deep green; veins forked, nearly patent, close. Sori continuous along margin of long pinnae or pinnules; indusia pale brown, thin.
Distribution in Thailand
SOUTH-EASTERN: Chon Buri; PENINSULAR; Surat Thani, Nakhon Si Thammarat, Narathiwat.
On rocky mountain-slopes in dense evergreen forests at low altitudes.
Proposed IUCN Conservation Assessment
Least Concern (LC). This species is widespread and not under any known threat.
Voucher specimens - Thailand
Sangkhachand 213, Narathiwat, Bacho (P).
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