Northeastern Asian Flora - Hymenophyllum riukiuense

Hymenophyllum riukiuense Christ (redirected from: Mecodium riukiuense (Christ) Copel.)
Family: Hymenophyllaceae [Hymenophyllum taiwanense (Tagawa) C.V. Morton, more] Images not available	Japan Flora Resources Japan Flora: Rhizomes creeping, nearly filiform; fronds 5-10 cm. long, 17-30 mm. wide; stipes at first with an entire, soon crispate-undulate wing on both sides; blades narrowly ovate, sometimes somewhat elongate and narrowed at tip, 3-pinnatiparted, the rachis winged; ultimate pinnules or segments narrow, linear, 0.5-1 mm. wide, obtuse; valves of indusia ovate to elliptic, few-toothed on upper margin, about 1 mm. wide. Shikoku, Kyushu (s. distr.); rare. Ryukyus.
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