Volume 3 > Part 2 > Year 1989 > Page 131–132 > Lindsaeaceae > Lindsaea

1. Lindsaea ensifolia Sw.wfo-0001107701

Schrad. J. Bot. 1800(2): 77. 1801; Christ, Bot. Tidsskr. 24: 110. 1901; Hosseus, Beih. Bot. Centralbl. 28(2): 365. 1911; Holttum, Dansk bot. Ark. 23: 234. 1965; Tagawa & K.Iwats., S.E. Asian Stud. 5: 74. 1967; Kramer in Fl. Males., Ser. II. 3: 211. 1971; Gard. Bull. Singapore 26: 32. 1972.— Schizoloma ensifolium (Sw.) J.Sm., J. Bot. 3: 414. 1841; Bedd., Handb. Ferns Brit. India: 80. f. 41. 1883; E.Smith, J. Siam Soc. Nat. Hist. Suppl. 8: 3. 1929; Tardieu &C.Chr. In Fl. Indo-Chine 7(2): 129. f. 15, 1–2. 1939; Holttum, Rev. Fl. Malaya 2: 346. f. 200. 1955; Dansk Bot. Ark. 20: 25. 1961; Seidenf., Nat. Hist. Bull. Siam Soc. 19: 86. 1958; Ching, Fl. Reipubl. Popularis Sin. 2: 273. pl. 23. f. 1–6. 1959.

Accepted Name : This is currently accepted.

Synonyms & Citations :

Description : Rhizome creeping, 3–5 mm diam., bearing fronds close together or up to 2 cm apart, brown to darker, scaly at least apically; scales linear, up to 2.5 mm long, 0.3 mm broad, brown, slightly shining. Stipe stramineous or castaneous at least at base. Lamina simply pinnate, ovate to oblong-lanceolate in outline, lateral pinnae 3–7 pairs, linear-lanceolate, caudately acuminate at apex, cuneate, rounded or subtruncate at base, very shortly stalked, entire at margin, up to 20 cm long, 2 cm broad, rather variable, smaller ones about 5 mm broad; terminal pinnae like lateral ones, subcoriaceous; veins anastomosing forming 2–4 rows of areoles at each side of costa, distinct beneath. Sori continuous along margin; indusia firm, nearly reaching the edges.

Thailand : NORTHERN: Chiang Mai (Doi Chiang Dao, Doi Suthep, Buak Ha), Phitsanulok (Thung Salaeng Luang); NORTH-EASTERN: Loei (Phu Luang, Phu Kradueng), Nong Khai (Phon Phisai); EASTERN: Ubon Ratchathani; CENTRAL: Nakhon Nayok (Khao Yai); SOUTH-EASTERN: Rayong (Khao Chamao), Chanthaburi (Khao Sabap, Makham, Phlio), Trat (Ko Chang, Ko Kut, Tha San Falls, Ban Saphan Hin); SOUTH-WESTERN: Kanchanaburi (Khao Ngi Yai); PENINSULAR: Krabi, Ranong (Ko Chong Lat), Surat Thani (Ko Tao, Ban Don), Phuket ( Ko Boi Noi), Nakhon Si Thammarat (Tha Samet), Trang (Tahbum), Satun, Yala (Ban Malao, Ban Chana).

Distribution : Old World tropics from W Africa (type from Mauritus) to Australia and Polynesia, north to the Ryukyus.

Ecology : Terrestrial on rather dry slopes or on sandy ground, or rarely on rocks, usually in open areas or in light shade, fairly common and locally abundant throughout Thailand at low to medium altitudes below 1,400 m.

Vernacular : Hang nok kaling (หางนกกะลิง)(Central).

Notes: Extremely variable as for the form and size of fronds especially in the different habitats; in open sunny places, pinnae become less than 5 mm broad, but in shady places they are more than 2.5 cm broad in the fertile condition; the bases of pinnae are usually broadly cuneate but sometimes narrow or auricled to some extent. Three subspecies are recognized but all the forms in Thailand belong in fundamental characteristics to subsp. ensifolia.

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