Pteris linearis Poir.
Pteridaceae, subfamily Pteridoideae
Pteris linearis Poir. in Lam., Encycl. (Lamarck) 5: 723, pl. 43. 1804; Tardieu & C.Chr., Fl. Indo-Chine 7(2): 158. 1940; Tagawa & K.Iwats., SouthE. Asian Stud. 5: 80. 1967; Tagawa & K.Iwats., Fl. Thailand 3: 238. 1985; Boonkerd & Pollawatn, Pterid. Thailand: 129. 2000.
Similar to Pteris biaurita , differs in: basal pair of veinlets forked, the basiscopic branches meeting those of the opposite groups at bottom of sinus forming triangular loop, but seldom actually anastomosing .
Distribution in Thailand
NORTHERN: Chiang Mai; SOUTH-WESTERN: Kanchanaburi.
Distribution in Laos
E Africa and throughout tropical Asia, but accurate area is not certain.
On mountain slopes in lower montane forests in limestone regions or in light shade at about 800–1800 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. 5052, Chiang Mai, Doi Ang Khang (E).
Voucher specimens - Laos
Delacour s.n., Khammouane, Nape (P).
Lower surface of pinna with galls
Upper surface of pinna with galls
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