Callistopteris apiifolia (C.Presl) Copel.

Family

Hymenophyllaceae

Nomenclature

Callistopteris apiifolia (C.Presl) Copel., Philipp. J. Sci. 67: 65. 1938; Ching, Fl. Reipubl. Popularis Sin. 2: 194. 1959; Tagawa & K.Iwats., Acta Phytotax. Geobot. 24: 178. 1970; Tagawa & K.Iwats., Fl. Thailand 3: 85. 1979. – Trichomanes apiifolium C.Presl, Hymenophyllaceae: 108, 136. 1843; Bedd., Suppl. Ferns Brit. Ind.: 11. 1892; Copel., Philipp. J. Sci. 51: 227, pl. 42, f. 1. 1933. – Cephalomanes apiifolium (C.Presl) K.Iwats., Acta Phytotax. Geobot. 35: 176. 1984; Tagawa & K.Iwats., Fl. Thailand 3: 615. 1989; Boonkerd & Pollawatn, Pterid. Thailand: 67. 2000.

Description

Lithophytic. Rhizome stout. Stipes stramineous to darker, to 13 cm long; hairs reddish brown to darker, bright, patent, stiff, multicellular, to 5 mm long. Laminae tripinnate to quadripinnatifid, 9.5–25 cm long, 7–9.5 cm wide, ovate to oblong-lanceolate, acute at apex, round at base; rachis dark stramineous to brownish, densely hairy with shorter and darker bristles, wingless or very narrowly winged in upper portion, easily broken; pinnae to 0.8–1.5 cm apart, narrowly elliptic, more or less falcate or not, acute at apex, truncate acroscopically and cuneate basiscopically at base, up to 6 cm long, 1.5–3.8 cm wide; pinna-rachis narrowly winged throughout, glabrous; pinnules oblong, round at apex, unequally cuneate at base, up to 1.5 cm long, 5 mm wide; ultimate segments linear, round to moderately acute at apex, entire; cell walls thin, smooth, sometimes the pagina clathrate. Sori on short branches, usually at distal side of pinnules; involucre cup-shaped, about 1 mm long and diam., with truncate mouth; receptacles long extruded.

Distribution in Thailand

PENINSULAR: Krabi, Nakhon Si Thammarat.

Wider Distribution

S Japan (Yakushima), Ryukyu, Nicobar, Taiwan, throughout Malesia to Fiji, not in Peninsular Malaysia.

Ecology

On rocks in evergreen forest at about 1100 m alt.

Proposed IUCN Conservation Assessment

Least Concern (LC). This species is widespread and not under any immediate known threat.

Voucher specimens - Thailand

Middleton et al. 5511, Nakhon Si Thammarat, Khao Ram Rom (E).

Habit

Habit

Frond

Frond

Crozier

Crozier

Pinnae

Pinnae

Involucres with exserted receptacles.

Involucres with exserted receptacles.

Site hosted by the Royal Botanic Garden Edinburgh. Content managed by Stuart Lindsay, Gardens by the Bay, Singapore and David Middleton, Singapore Botanic Gardens. Last updated 16 November 2016.