Northeastern Asian Flora
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Lepisorus thunbergianus (Kaulf.) Ching  
Family: Polypodiaceae
[Lepisorus angustus Ching, moreLepisorus calcifer Ching & Z.Y.Liu, Lepisorus linearifolius Ching & Z.Y.Liu, Lepisorus myrisorus Ching, Lepisorus nachuanensis Ching & Z.Y.Liu, Lepisorus niger Ching, Lepisorus pseudoangustus Ching, Lepisorus pygmaeus Ching & Z.Y.Liu, Lepisorus simulans Ching & Z.Y.Liu, Lepisorus thunbergianus var. angustus (Ching) Sa.Kurata, Pleopeltis thunbergianus Kaulf., Polypodium coraiense Christ, Polypodium lineare f. ramifrons Nakai, Polypodium lineare var. coraiense Christ, Polypodium lineare var. heterolepis Rosenst., Polypodium loriformis var. heterolepis C.Chr., Polypodium thunbergianum (Kaulf.) Christ]
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  • Japan Flora
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Japan Flora: Evergreen glabrous fern; rhizomes long-creeping, 2-3 mm. across, densely scaly, the scales ascending, linear-subulate, 3-4 mm. long, dilated and ovate-cordate at base, dark brown, minutely dentate; fronds evergreen, glabrous, 12-30 cm. long; stipes 1-3 cm. long; blades coriaceous, linear to broadly so, 5-15 mm. wide, gradually acuminate, gradually narrowed at base, entire, somewhat recurved on margin, entire, dark green above, pder beneath, the costa prominent on both sides, usually with minute ovate appressed scales on lower half be­neath; sori round, on upper half of blades, close to nearly contiguous at maturity, medial. Tree-trunks and rocks in lowlands and low mountains.

Hokkaido, Honshu, Shikoku, Kyushu; common. Korea, Formosa, China, Indochina, and Philippines.

Lepisorus thunbergianus
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Development supported by College of Agriculture and Life Sciences of Seoul
National University and Korea National Arboretum of Korea Forest Service.
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