Plants 15-28 cm tall. Rhizomes creeping, to 10 cm, 1.8-2.5 mm in diam., densely scaly; scales brown, sometimes with paler margins, lanceolate, 2.5-5 × up to 1 mm, margins serrate, center opaque, marginal 1 or 2 rows of cells transparent or not. Fronds closely spaced; stipe straw-colored, 1.5-2(-3) cm, 1-1.5 mm in diam.; lamina grayish yellow when dried, lanceolate, 15-28 × 1.5-2.5 cm, normally widest 1/3 from base, distal 1/3 abruptly attenuate, ± hard and leathery, both surfaces subglabrous, or abaxial surface occasionally sparsely scaly, scales lanceolate or suborbicular, transparent, lamina base attenuate, decurrent, apex long acuminate; costa robust, raised on both sides, veinlets faintly visible. Sori usually along distal part of lamina, midway between costa and margins or nearer costa, orbicular, 2.5-3 mm in diam.; paraphyses brown, orbicular, nearly polygonal in shape, 0.4-0.6 mm in diam., center thick and dark. Spores verrucose. Rhizome creeping, 2 mm diam., bearing fronds rather closely, dark on surface, densely scaly throughout; scales ovate-subtriangular with long-attenuate apex, irregularly toothed at margin, up to 3 by 1.5 mm, the central portion dark brown, not transparent, the marginal portion distinctly clathrate. Stipes up to 2 cm long, stramineous, scaly at base. Fronds linear-lanceolate, broadest at middle, narrowing towards both the attenuate ends, entire and plane at margin, up to 20 by 2 cm; subcoriaceous; veins invisible, copiously anastomosing, sparsely minutely scaly on lower syrface. Sori medial, round, about 2 mm diam., distinct from the next ones, superficial. In mossy crevices of mossy rocks by streams at about 1200 m alt.; collected only in one locality in Thailand. In mossy crevices of mossy rocks by streams at about 1200 m alt.; collected only in one locality in Thailand. Thailand, SW. China (Yunnan, type) and Taiwan. Rhizome creeping, 2 mm diam., bearing fronds rather closely, dark on surface, densely scaly throughout; scales ovate-subtriangular with long-attenuate apex, irregularly toothed at margin, up to 3 by 1.5 mm, the central portion dark brown, not transparent, the marginal portion distinctly clathrate. Stipes up to 2 cm long, stramineous, scaly at base. Fronds linear-lanceolate, broadest at middle, narrowing towards both the attenuate ends, entire and plane at margin, up to 20 by 2 cm; subcoriaceous; veins invisible, copiously anastomosing, sparsely minutely scaly on lower syrface. Sori medial, round, about 2 mm diam., distinct from the next ones, superficial. Plants 15-28 cm tall. Rhizomes creeping, to 10 cm, 1.8-2.5 mm in diam., densely scaly; scales brown, sometimes with paler margins, lanceolate, 2.5-5 × up to 1 mm, margins serrate, center opaque, marginal 1 or 2 rows of cells transparent or not. Fronds closely spaced; stipe straw-colored, 1.5-2(-3) cm, 1-1.5 mm in diam.; lamina grayish yellow when dried, lanceolate, 15-28 × 1.5-2.5 cm, normally widest 1/3 from base, distal 1/3 abruptly attenuate, ± hard and leathery, both surfaces subglabrous, or abaxial surface occasionally sparsely scaly, scales lanceolate or suborbicular, transparent, lamina base attenuate, decurrent, apex long acuminate; costa robust, raised on both sides, veinlets faintly visible. Sori usually along distal part of lamina, midway between costa and margins or nearer costa, orbicular, 2.5-3 mm in diam.; paraphyses brown, orbicular, nearly polygonal in shape, 0.4-0.6 mm in diam., center thick and dark. Spores verrucose.General Information
Source: [
Source: [
Ecology
Source: [
e-Flora of Thailand
EcologyFlora of China @ efloras.org
General Information
