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FOC | Family List | FOC Vol. 2-3 | Lindsaeaceae | Osmolindsaea

2. Osmolindsaea japonica (Baker) Lehtonen & Christenhusz, Bot. J. Linn. Soc. 163: 336. 2010.

日本鳞始蕨 ri ben lin shi jue

Lindsaea cultrata (Willdenow) Swartz var. japonica Baker in Hooker & Baker, Syn. Fil. 105. 1867; L. japonica (Baker) Diels; L. odorata Roxburgh var. japonica (Baker) K. U. Kramer.

Rhizomes shortly creeping, sparsely scaly; scales reddish brown, ca. 0.5 mm, 1-3 cells wide at base. Stipe stramineous, dark purple throughout, 0.5-5 cm, abaxially rounded, adaxially grooved; lamina lanceolate, 2-7(-10) × 1-2.5 cm, herbaceous, 1-pinnate; rachis abaxially rounded, adaxially grooved, stramineous or dark at base; pinnae 3-10 pairs, alternate, shortly stalked, asymmetrically triangular-dimidiate, less than their width apart, larger ones 7-12 × 3-8 mm, twice as wide as long, unequal, attenuate at base, obtuse to subacute at apex; margins of fertile pinnules entire, margins of sterile ones slightly crenate; basal pinnules often sterile and slightly reduced, upper pinnules slightly reduced, terminal segment free, flabellate; veins immersed, simple to twice forked, ca. 1 mm apart. Sori marginal, continuous; indusia adnate laterally, 0.5-0.7 mm wide, entire, reaching margin; annulus with ca. 15 hardened cells. Spores monolete, smooth. 2n = 150.

Terrestrial or on wet rocks beside streams, forest ravines; 200-500 m. Guangdong, Guizhou (Chishui), Hainan, Jiangxi, Sichuan, Taiwan [Japan, Korea].


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