Family

Dryopteridaceae

Nomenclature

Bolbitis copelandii Ching ex C.Chr. & Tardieu, Notul. Syst. 7: 101. 1938; Tardieu & C.Chr., Fl. Indo-Chine 7(2): 434, f. 50.1 & 50.2. 1941; Tagawa & K.Iwats., SouthE. Asian Stud. 5: 91. 1967; Tagawa & K.Iwats., Fl. Thailand 3: 312. 1988; Boonkerd & Pollawatn, Pterid. Thailand: 182. 2000; Dy Phon, Dictionary of Plants used in Cambodia: 97. 2000. – Bolbitis crispatula (Copel.) Ching var. copelandii (Ching) Hennipman, Leiden Bot. Ser. 2: 159, f. 40i & 42. 1977. 

Description

Terrestrial or lithophytic. Rhizome creeping or ascending, densely scaly; scales dark brown, clathrate, up to 6 by 1.2 mm, entire. Sterile frond: stipe stramineous, scaly at base, very minutely scaly upwards, 20–25 cm long; lamina oblong-lanceolate, gradually narrowing towards attenuate apex, up to 30–45 by 15–20 cm; pinnae 8–25 pairs, middle ones the largest, lanceolate, straight, slightly ascending, shortly stalked and jointed to rachis, gradually narrowing towards caudate-acuminate apex, subtruncate at anterior and cuneate at posterior bases, up to 10 by 1.7 cm, distinctly serrate in apical part, subentire or very slightly lobed in basal part, lower lateral pinnae shorter than the next above, apical pinna rarely distinct, small if any; rachis viviparous near the apex, costa glabrous, veins raised beneath, forming a row of costal areoles and costular ones in larger pinnae; subcoriaceous, light-green, reddish in dried condition. Fertile frond: lateral pinna distinctly stalked, linear with unequal base, up to 6 by 1.2 cm, shallowly lobed at margin; sporangia confined to margins and near veins, leaving broad sterile portion along costa .

Distribution in Thailand

NORTHERN: Lampang; NORTH-EASTERN: Loei; EASTERN: Chaiyaphum, Nakhon Ratchasima, Buri Ram, Ubon Ratchathani; CENTRAL: Nakhon Nayok; SOUTH-EASTERN: Prachin Buri, Rayong.

Distribution in Laos

Champasak.

Distribution in Cambodia

Kompong Speu, Ratanakiri, Siem Reap.

Wider Distribution

Indochina.

Ecology

On rather dry to moist mountain slopes or on muddy rocks in dense evergreen forests at usually up to 600 m alt.

Proposed IUCN Conservation Assessment

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

Notes

Used in traditional Indo-Chinese medicine as a febrifuge (Dy Phon, 2000).

Voucher specimens - Thailand

Middleton et al. 5186, Ubon Ratchathani, Phu Chong Nayoi National Park (E).

Voucher specimens - Cambodia

David et al. CL773, Ratanakiri (P).