Volume 3 > Part 2 > Year 1989 > Page 201–202 > Parkeriaceae > Cheilanthes

1. Cheilanthes tenuifolia (Burm.f.) Sw.wfo-0001115235

Syn. Fil.: 129, 332. 1806; Bedd., Handb. Ferns Brit. India: 92. 1883; Tardieu & C.Chr. in Fl. Indo-Chine 7(2): 173. 1940; Holttum, Rev. Fl. Malaya 2: 590. f. 347. 1955; Dansk Bot. Ark. 20: 33. 1961; 23: 243. 1965; Tagawa & K.Iwats., S.E. Asian Stud. 5: 108. 1967.— Trichomanes tenuifolium Burm.f., Fl. Indica: 237. 1768.

Accepted Name : Hemionitis tenuifolia (Burm.f.) Christenh.
Global Fl. 4: 22. 2018.

Description : Rhizome short, ascending, covered with scales; scales light brown, very narrow, entire, 3–4 mm long. Stipe castaneous, polished, slightly swollen and densely scaly at base, sparsely and minutely scaly upwards, 10–25 cm long, grooved on adaxial surface. Frond dimorphic; sterile lamina smaller, with stipe 8–12 cm in length, deltoid in outline. Fertile lamina tripinnate, or the larger quadripinnatifid, subdeltoid in outline, up to 20 by 8 cm; rachis and pinna-rachis scaly, grooved on upper surface; pinnae ten or more pairs, basal ones the largest, subtriangular, acute at apex; middle pinnae oblong-subtriangular; larger pinnules pinnatisect with a few pairs of lobes and a large terminal one, terminal lobes of pinnules like terminal pinnae and pinnules, oblong, round at apex, 5–10 by ca 3 mm, entire; ultimate lobes round or oval, 2–4 mm long, up to 1.5 mm broad, papyraceous, green; veins all free, obscure. Sporangia confined to the end of veins but appearing continuous at margin of lobes, when young protected by reflexed margin of lobes, edges uneven, pellucid.

Thailand : NORTHERN: Chiang Mai (Chiang Dao, Doi Suthep, Mae Klang), Mae Hong Son (Mae Sariang, Doi Pha Dam), Lampang (Doi Phalat), Lamphun (Doi Khun Tan), Phrae (Mae Ban), Phitsanulok (Thung Salaeng Luang), Tak (Doi Musoe); CENTRAL: Nakhon Nayok (Khao Yai); SOUTH-EASTERN: Chanthaburi (Khao Sabap), Trat (Ko Chang); PENINSULAR: Chumphon (Tha Ko), Surat Thani (Bang Bao, Ban Don), Songkhla, Phangnga, Satun, Trang (Khao Chong), Yala (Bannang Sata).

Distribution : Tropics of Asia and Oceania, from India and S China through Malesia (type from India) to Polynesia, Australia and New Zealand.

Ecology : On rather dry clayey banks of paths in mixed forests at low altitudes.

Vernacular : Chon phi (โชนผี)(Peninsular)

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