Gymnocarpium oyamense (Baker) Ching
  • Contrib. Biol. Lab. Sc. Soc. China 9: 40, tab. 1933

Cite taxon page as 'WFO (2023): Gymnocarpium oyamense (Baker) Ching. Published on the Internet; Accessed on: 27 Mar 2023'

General Information

Rhizomes long creeping, 1.5-2(-3) mm in diam., clothed with red-brown, broadly lanceolate scales, glabrate when old. Fronds distant; fertile fronds (13-)25-45(-50) cm; stipe stramineous, shiny, (7-)12-25(-31) cm, 1.5-2 mm in diam., terete abaxially and grooved adaxially, scaly at base, upward glabrate, articulate to lamina at apex; lamina ovate-triangular, (7-)10-18(-22) × (4-)6-13(-20) cm, herbaceous, glabrate, base cordate, pinnatipartite 4-5 mm to rachis, apex acuminate; pinnae 6-9(-13) pairs, opposite, spreading, approximate, broadly lanceolate, falcate, base decurrent to narrow rachis wing, shallowly lobed to pinnatipartite, apex acute or acuminate; basal pair of pinnae descending, often broadly lanceolate, (2-)4-7(-10) × 1-1.8(-3) cm; second pair slightly longer than basal pinnae or subequal, spreading, shallowly lobed; pinna lobes obtuse-rounded, entire or crenate; veins pinnate, lateral veins (2-)4 or 5(-8) pairs, simple, slightly visible; rachis inserted obliquely and articulate to stipe; upper part of stipe, lower part of rachis, and bases of costae in lower pinnae sparsely pubescent with short glands, or glabrate. Sori oblong, medial on veins, biseriate along both sides of costules, exindusiate. Spore wall surface rugate, foveolate. 2n = 80, 160.

  • Provided by: [B].Flora of China @
    • Source: [
    • 1
    • ]. 

     Information From

    World Flora Online Data. 2021.
    • A CC0 1.0 Universal (CC0 1.0).
    Flora of China @
    'Flora of China @ eFloras (2008). Published on the Internet [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
    • B Missouri Botanical Garden
    World Flora Online Data. 2021.
    • C CC0 1.0 Universal (CC0 1.0).
    World Flora Online Data. 2021.
    • D CC0 1.0 Universal (CC0 1.0).
    World Flora Online Consortium
    World Flora Online Data. 2017.
    • E CC0 1.0 Universal (CC0 1.0).