Northeastern Asian Flora
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Lepisorus clathratus (C.B.Clarke) Ching   (redirected from: Lepisorus clathratus var. namegatae Sa.Kurata)
Family: Polypodiaceae
[Lepisorus clathratus var. namegatae Sa.Kurata, moreLepisorus clathratus var. papakense Tagawa, Lepisorus nepalensis K.Iwats., Lepisorus papakensis (Masam.) Ching & Y.X.Lin, Lepisorus sinuatus (Ching & S.K.Wu) S.L.Yu, Lepisorus soulieanus (Christ) Ching & S.K.Wu, Lepisorus variabilis Ching & S.K.Wu, Lepisorus waltonii (Ching) S.L.Yu, Neocheiropteris waltonii Ching, Pleopeltis clathrata (C.B.Clarke) Bedd., Pleopeltis soulieanum Christ, Polypodium alberti Regel, Polypodium clathratum C.B.Clarke, Polypodium clathratum var. lobatum Takeda, Polypodium papakense Masam., Polypodium soulieanum Christ]
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  • Japan Flora
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Japan Flora: Rhizomes creeping, densely scaly, 1-1.5 mm. across, the scales deep brown, mem­branous, lanceolate or ovate-lanceolate, 3-5 mm. long, 1-1.5 mm. wide, acuminate, clathrate with large oblong thin cells, rounded and peltate at base, with few slender teeth; stipes 1-4 cm. long, straw-colored, glabrous; blades lanceolate or linear- lanceolate, 5-15 cm. long, 6-15 mm, wide, gradually narrowed at both ends, entire or slightly undulate, pale green, glabrous, thinly dispersed with small scales while young, the costa dis­tinct, raised below; sori slightly nearer the costa than the margin.

Honshu (Shinano Prov.); rare. Formosa, China, and n. India to Siberia.

Lepisorus clathratus
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National University and Korea National Arboretum of Korea Forest Service.
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