Northeastern Asian Flora
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Diplazium mettenianum (Miq.) C.Chr.  
Family: Aspleniaceae
[Allantodia metteniana (Miq.) Ching, moreAllantodia metteniana var. isobase (Christ) Ching, Allantodia taweishanica Ching, Asplenium mettenianum Miq., Asplenium textori Miq., Athyrium metteniamum (Miq.) Ohwi, Athyrium metteniamum var. isobase (Christ) Ohwi, Diplazium agyokuense Tagawa, Diplazium cavaleriei Christ, Diplazium deciduum N.Ohta & M.Takamiya, Diplazium fauriei var. tenuifolium (Sa.Kurata) Nakaike, Diplazium hayatamae N.Ohta & M.Takamiya, Diplazium isobase Christ, Diplazium japonicum var. textori (Miq.) Christ, Diplazium lohfauense C.Chr. ex Wu.Wong & Pong, Diplazium mettenianum var. isobase (Christ) Tagawa, Diplazium mettenianum var. isobasis (Christ) Tagawa, Diplazium mettenianum var. tenuifolium Sa.Kurata, Diplazium tasiroi Tagawa, Diplazium textori (Miq.) Makino]
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  • Japan Flora
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Japan Flora: Rhizomes long-creeping, firm, 3-4 mm. across, black-brown, scaly; stipes 30-40 cm. long, pale green to pale brown, thinly scaly and dark brown toward base; scales firmly membranous, the upper ones brown, the basal nearly black, linear, 3-4 mm. long, ab이it 0.5 mm. wide, sparsely spine-toothed toward tip; blades narrowly ovate to broadly lanceolate, 2(M0 cm. long, 8-20(-30) cm. wide, long-acuminate, not contracted at base; pinnae 10-13 pairs, horizontally spreading, equilateral except sometimes the lowest one, lanceolate, 4-10(-15) cm. long, 1-3(-3.5) cm. wide, short- petiolulate, pinna til obed, the upper pinnae smaller and de­current on the rachis; sori linear, 3-7 mm. long, slightly arcu­ate, median, or those on the lowest veinlets often diplazioid and longer.

Honshu (Izu Prov., Tokaido, Kinki Distr. and westw.), Shikoku, Kyushu. Ryukyus, Formosa, China, and Philippines.

var. fauriei (Christ) Ohwi. Pinnae irregularly toothed. Occurs with the species.

var. isobasis (Christ) Ohwi. Pinnae deeply parted. Occurs with the species. 

Diplazium mettenianum
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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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