Ferns of Thailand, Laos and Cambodia > Callistopteris apiifolia

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).

	Ferns of Thailand, Laos and Cambodia
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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 Frond Crozier Pinnae Involucres with exserted receptacles.
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Callistopteris apiifolia (C.Presl) Copel.