Northeastern Asian Flora
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Athyrium nakanoi Makino   (redirected from: Athyrium obtusifolium Rosenst.)
Family: Aspleniaceae
[Asplenium macrocarpum var. unipinnatum C.B.Clarke, moreAthyrium macrocarpum var. unipinnatum Bedd., Athyrium obtusifolium Rosenst., Athyrium subfalcatum Ching, Athyrium tenuissimum Kodama, Nephrodium tenuissima Hayata]
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  • Japan Flora
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Japan Flora: Rhizomes short, with the remains of old fronds; fronds 15-30 cm. long; stipes 2-5 cm. long, slender, slightly lustrous, brownish in lower part, with membranous, pale brown, en­tire, ovate-triangular to broadly lanceolate scales 2-3 mm. long; blades membranous-herbaceous, lanceolate, 13-25 cm. long, about 3 cm. wide, gradually acuminate, slightly con­tracted at base, deep green, thinly puberulent while very young on underside and on rachis; pinnae 14-18 pairs, oblong to ovate, 1-1.7 cm. long, 5-8 mm. wide, obtuse, auriculate and nearly truncate on upper side at base, cuneate on lower side, crenately toothed, spreading, penninerved, the lower 1 or 2 pairs smaller and subreflexed; veinlets usually simple except the one on the auricle and this pinnately branched; sori 5-10 on a pinnule, median; indusia membranous, reni- form or obovate, erose-dentate. Mountains.

Kyushu (Yakushima); rare. Formosa.

Athyrium nakanoi
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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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