Northeastern Asian Flora
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Dryopteris shikokiana (Makino) C.Chr.   (redirected from: Aspidium shikokianum Makino)
Family: Dryopteridaceae
[Aspidium shikokianum Makino, moreCtenitis shikokiana (Makino) H.It, Nephrodium shikokianum Makino, Nothoperanema shikokianum (Makino) Ching]
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  • Japan Flora
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Japan Flora: Rhizomes short-creeping; stipes 20-50 cm. long, brownish, densely scaly; scales on lower half of the stipes broadly lanceolate to narrowly ovate, 7-10 mm. long, entire, dark chestnu t-brown, lustrous, spreading to slightly deflexed, those on upper half of stipe and those of the rachis linear to linear-lanceolate, 3-8 mm. long; blades ovate, 40-75 cm. long, acuminate, 3-pinnatiparted; pinnae 3-10 pairs, narrowly oblong-ovate to broadly lanceolate, equilateral, ob­liquely spreading, caudate-acuminate, short-petiolulate; pin­nules narrowly oblong, obtuse in the smaller ones, narrowly ovate-oblong, 2-6 cm. long, 1-2.5 cm. wide, short-acuminate in larger ones, pinnatilobed, sometimes slightly whitish beneath. nearly glabrous on both sides, sometimes with a few scattered fleshy hairs on upper side, the costules above with an elevated ridge on each side, the lowest pinnule largest, sometimes bipin­na tiparted; ultimate pinnules oblong to oblong-lanceolate, 5-20 mm. long, 2-7 mm. wide, obtuse, crenate; sori nearer the costa (or to the veins) of the pinnules; indusia obsolete or absent.             

Honshu (Izn, Echizen, and Kii Prov.), Shikoku, Kyushu

Dryopteris shikokiana
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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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