Northeastern Asian Flora
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Adiantum diaphanum Blume  
Family: Pteridaceae
[Adiantum affine Hook., moreAdiantum heteromorphum Colp. ex Field, Adiantum setulosum J.Sm.]
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  • Japan Flora
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Japan Flora: Rhizomes short, the scales broadly linear, membranous, about 1 mm. long; fronds slender; stipes purple­brown, slender, lustrous, 10-20 cm. long, 0.5-1 mm. across, with scattered spreading scales toward base; blades simply pin­nate, bipinnate, or with 1 or 2 pairs of elongate basal pinnae, the terminal pinna lanceolate, 7-12 cm. long, 2-2.5 cm. wide, acute, the rachis slender, glabrous; pinnules membranous, 7-18 pairs, close together or overlapping, oblong-squarrose, oblique, obtuse to rounded, cuneate at base, obtusely and irregularly toothed except the lower two-thirds on posterior side, with scattered dark brown bristles on both sides and on posterior margin, the petioles about 1 mm. long; sori in deep marginal sinuses near tip; false indusia cordate, gray-brown, entire, hya­line on margin, about 1 mm. long and as wide, prominently setose on back.

Kyushu (Iki, Hirato, Yakushima); very rare. Bonins, Formosa, China, Malaysia, Polynesia to Australia, and New Zealand.

Adiantum diaphanum
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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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