圆叶舌蕨 yuan ye she jue

Rhizomes long creeping, ca. 2 mm thick, densely scaly; scales dark brown, ovate or ovate-lanceolate, 2-4 mm, membranous, base rounded, margin entire, sometimes slightly ciliate, apex acuminate. Fronds remote; sterile fronds 4-13 cm overall, stipe brownish stramineous, 2-8 cm, base densely covered with scales similar to those of rhizome, sparser upward; lamina orbicular to elliptic, 2.5-6 × 2-3.5 cm, leathery, brown when dry, with sparse, small, brown, stellate scales, base rounded-cuneate, decurrent nearly to middle of stipe, margin entire, thickened and slightly reflexed, apex rounded; midrib obvious, prominent on both surfaces, thinly grooved above, secondary veins inconspicuous, simple or once forked, terminating at margin; fertile fronds: stipe 5-10 cm, lamina 2.5-6 × 1-2 cm.

● On wet rocks or tree trunks; 1100-1900 m. Guangxi, Yunnan.