Family

Lomariopsidaceae

Nomenclature

Nephrolepis hirsutula (G.Forst.) C.Presl, Tent. Pterid.: 79. 1836; Tardieu & C.Chr. in Fl. Indo-Chine 7(2): 290. 1941; Holttum, Rev. Fl. Malaya ed. 1, 2: 382, f. 222. 1955 [‘1954’]; Ching, Fl. Reipubl. Popularis Sin. 2: 317, pl. 28, f. 3 & 4.1959; Tagawa & K.Iwats.,SouthE. Asian Stud. 5: 78. 1967; Tagawa & K.Iwats., Fl. Thailand 3: 177. 1985; Boonkerd & Pollawatn, Pterid. Thailand: 238. 2000; Hovenkamp & Miyamoto, Blumea 50: 304. 2005. – Polypodium hirsutulum G.Forst., Fl. Ins. Austr.: 81. 1786.

Description

Rhizome short, erect, bearing a tuft of fronds, a few wiry roots, and stolons; scales dense, appressed, gradually narrowing from round base to acute apex, bicoloured with dark brown central portion and pale ferrugineous edge, about 3 by 0.7 mm, hairy at margin; runners many, slender, hirsute. Stipes up to 30 cm long, scaly throughout. Laminae up to 50 by 30 cm, gradually narrowing towards both ends; lateral pinnae more than 60 pairs; the middle ones 2–2.5 cm apart, larger, gradually narrowing from base towards acute apex, distinctly auricled at anterior and round to slightly auricled at posterior bases, up to 15 by 2 cm, shallowly crenate at margin; herbaceous or thicker, very minutely scaly or costa, veins and both surfaces of lamina as well. Sori submarginal; indusia reniform, glabrous , up to 1 mm diam.

Distribution in Thailand

NORTHERN: Chiang Mai; NORTH-EASTERN: Nong Khai; SOUTH-WESTERN: Prachuap Khiri Khan; SOUTH-EASTERN: Chanthaburi; PENINSULAR: Chumphon, Ranong, Phangnga, Nakhon Si Thammarat, Krabi, Satun, Yala.

Distribution in Cambodia

Unspecified.

Wider Distribution

Tropical Asia to the Pacific.

Ecology

On rather dry ground in light shade.

Proposed IUCN Conservation Assessment

Least Concern (LC). This species is widespread and not under any known threat.

Voucher specimens - Thailand

Middleton et al. 4656, Chanthaburi, Namtok Phlio National Park (E).