Volume 3 > Part 2 > Year 1989 > Page 203 > Parkeriaceae > Cheilanthes

3. Cheilanthes fragilis Hook.wfo-0001123974

Fil. Exot.: t. 96. 1859; Bedd., Handb. Ferns Brit. India: 91. 1883; Tagawa & K.Iwats., Acta Phytotax. Geobot. 25: 19. 1971. Fig. 15. 3.

Accepted Name : Hemionitis fragillima (F.Muell.) Christenh.
Global Fl. 4: 14. 2018.

Description : Rhizome short, erect, scaly; scales gradually narrowing towards acuminate apex, about 4 mm long, up to 0.5 mm broad, brown, central portion sometimes stiff and darker, entire. Stipe castaneous or darker, up to 10 cm long, scaly near base, densely pubescent throughout, hairs woolly but patent, dark, up to 0.5 mm long. Lamina bipinnatifid, oblong-lanceolate or narrower, up to 25 by 7 cm in fertile, up to 15 cm by 7 cm in sterile fronds; rachis pubescent throughout, grooved on upper surface; pinnae alternate, sessile, narrowly elliptic, acuminate at apex, subtruncate at base, or narrowly oblanceolate with moderately acute apex, up to 4 by 1 cm; costa castaneous, green in distal portion, pubescent or glabrescent; pinnules close to somewhat distant, patent to oblique, oblong, round to moderately acute at apex, adnate at base, entire or slightly waved at margin, softly papyraceous, hairy at margin but glabrous on surface; veinlets simple, hardly visble. Sori at apex of veinlets, protected by thin reflexed flaps.

Thailand : NORTHERN: Chiang Mai, Tak (Khao Phra Wo).

Distribution : Burma (Moulmein – type).

Ecology : On limestone rocks on ridges of hills in teak jungles at 750–930 m alt.

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