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FOC | Family List | FOC Vol. 2-3 | Woodsiaceae | Woodsia

1. Woodsia glabella R. Brown ex Richardson in Franklin, Narr. Journey Polar Sea. 754. 1823.

光岩蕨 guang yan jue

Woodsia alpina (Bolton) Gray var. glabella (R. Brown ex Richardson) D. C. Eaton; W. hyperborea (Liljeblad) R. Brown var. glabella (R. Brown ex Richardson) Watt; W. lapponica Ångström; W. yazawai Makino.

Plants 5-10 cm tall. Rhizomes compact, ascending, scaly as stipe base; scales concolorous, brown, lanceolate or ovate-lanceolate, 2-3 mm, membranous, margin entire. Fronds clustered; stipe brown-stramineous, slender, 1-2 cm, brittle, articulate below middle, glabrous or rarely with few brown, linear scales on apical portion; lamina 1-pinnate-pinnatifid, linear-lanceolate, 3-6 cm × 7-11 mm, thinly herbaceous, both surfaces glabrous or with occasional hairs, base attenuate, apex acuminate; rachis glabrous; pinnae 4-9 pairs, well separated, sessile, spreading; lower pinnae shorter than above, basal one flabellate; medial pinnae largest, deltoid-ovate, 3-5 × 2-5 mm, base truncate, margin pinnatifid, with 1-3 pairs of pinnules, apex obtuse; pinnules elliptic or tongue-shaped, proximal pairs largest, ca. 3 mm, undulate or apically crenulate. Veins pinnate, visible. Sori consisting of few sporangia, submarginal; indusia saucer-shaped, fimbriate, thinly membranous, brittle, usually fallen when mature. 2n = 78.

Rock crevices in needle-leaved forests and mixed forests; 2100-3700 m. Gansu, Hebei, Jilin, Qinghai, Xinjiang, Yunnan [Japan, Russia; Europe, North America].


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