e-Flora of Thailand

Volume 3 > Part 3 > Year 1988 > Page 432 > Thelypteridaceae > Thelypteris

48. Thelypteris terminans (Hook.) Tagawa & K.Iwats.wfo-0001125700

Acta Phytotax. Geobot. 26: 169. 1975.— Nephrodium terminans Hook., Sp. Fil. [W. J. Hooker] 4: 73. 1862.— Amphineuron terminans (Hook.) Holttum, Amer. Fern J. 63: 82. 1973; Blumea 23: 207. 1977; in Fl. Males., Ser. II, Pterid. 1: 545. f. 19 a. 1981.


Accepted Name : Thelypteris opulenta (Kaulf.) Fosberg
Smithsonian Contr. Bot. 8: 3. 1972.



Synonyms & Citations :

Nephrodium pteroides auct. non (Retz.) J.Sm.: Bedd., Handb. Ferns Brit. India: 269. 1883; Ostenfeld, Bull. Herb. Boiss. II. 5: 721. 1905; Hosseus, Beih. Bot. Centralbl. 28(2): 365. 1911; E.Smith, J. Siam Soc., Nat. Hist. Suppl. 8: 5. 1929.
Dryopteris pteroides auct. non (Retz.) Kuntze.: C.Chr., Contr. U.S. Natl. Herb. 26: 184. 1931.
Cyclosorus interruptus auct. non (Willd.) H. Ito: Ching, Bull. Fan Mem. Inst. Biol. 8: 184. 1938; Tardieu & C.Chr. in Fl. Indo-Chine 7(2): 397. 1941; Holttum, Rev. Fl. Malaya 2: 262. f. 149. 1955; Dansk Bot. Ark. 20: 23. 1961.
Thelypteris interrupta auct. non (Willd.) K.Iwats.: Tagawa & K.Iwats., S.E. Asian Stud. 3(3): 79. 1965; 5: 68. 1967.
Cyclosorus extensus auct. non (Blume) Ching: Holttum, Dansk Bot. Ark. 20: 23. 1961.


Description : Rhizome long-creeping, about 1 cm diam.; scales narrow, brown, up to 10 by 0.8 mm, hairy. Stipe 40–60 cm long, stramineous with dark scaly base, pubescent. Lamina oblong-lanceolate, acute at apex, 50–80 by about 40 cm; lateral pinnae more than 30 pairs, basal pinnae not or little reduced, patent to ascending, lower ones linear, straight, gradually narrowing towards long-acuminate apex, cuneate and shortly stalked at base, up to 25 by 1.2–2 cm, lobed to half-way to costa; segments oblong, oblique, round to moderately acute at apex, entire; papyraceous, green; veins pinnate, veinlets simple, hairy, basal 1–1.5 pairs uniting with those of the next group below sinus. Sori confined to upper part of segments, often hollowed; indusia persistent, hairy.


Thailand : Common all over the country.


Distribution : Tropics of Asia (type from Burma) to Australia (Queensland).


Ecology : Common on rather dry mountain slopes in forests at low or medium altitudes up to 1,200 m.


E-version notes : For more details see Ferns of Thailand, Laos and Cambodia.


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