Volume 3 > Part 3 > Year 1988 > Page 367 > Dryopteridaceae > Tectaria

3. Tectaria coadunata (J.Sm.) C.Chr.wfo-0001118692

Contr. U.S. Natl. Herb. 26: 331. 1931; Ching, Sinensia 2: 18. pl. 1, 2. 1931; Tagawa & K.Iwats., S.E. Asian Stud. 3(3): 86. 1965; 5: 97. 1967.— Sagenia coadunata J.Sm., J. Bot. 4: 184. 1841, based on Aspidium coadunatum Wall. ex Hook. & Grev., Icon. Filic.: t. 202. 1831, non Kaulf. 1824.

Accepted Name : This is currently accepted.

Synonyms & Citations :

Description : Rhizome short-creeping, thick; scales stiff, gradually narrowing towards long-tailed apex, up to 15 by 1 mm, entire, dark brown. Stipe 35–45 cm long, stramineous to pale castaneous, glabrescent above. Lamina deltoid, 60–100 by 60 cm, tripinnate to quadripinnatifid; basal pinnae asymmetrically oblong-subdeltoid, long-stalked, up to 55 by 40 cm; middle pinnae 5–7 pairs below deeply lobed apical pinnae, oblong to oblong-lanceolate, acute at apex; pinnules of middle pinnae stalked, oblong-subtriangular, acuminate at apex, deeply lobed to ⅘ way towards costa, up to 15 by 10 cm; secondary pinnules oblong to oblong-ovate, round at apex, crenate; thin, herbaceous, light green; veins copiously anastomosing, with included free veinlets; rachis, pinna-rachis, midrib of pinnules and segments more or less densely hairy, upper surface of lamina and margin hairy; hairs articulated, coarse. Sori at apex of included veinlets, in one row at each side of midrib of ultimate lobes, medial, indusiate; indusia rather large, up to 1.2 mm diam., glabrous.

Thailand : NORTHERN: Chiang Rai (Doi Pha Khao), Chiang Mai (Fang, Doi Chiang Dao, Doi Suthep, Doi Chong, Doi Inthanon), Mae Hong Son (Khun Yuam, Mae Sariang).

Distribution : Tropical Africa, India (type), SW China, Indochina, Taiwan, W Malaysia.

Ecology : On mountain slopes in dense forests at 350–1,500 m alt.

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