线片鳞始蕨 xian pian lin shi jue

Type: Vietnam. 1906, Eberhardt 116 (lectotype, designated here, P! [barcode 00633692]).

Odontosoria eberhardtii Christ, J. Bot. (Morot), ser. 2, 1: 266. 1908; Lindsaea dissectiformis Ching; Stenoloma eberhardtii (Christ) Ching.

Rhizomes shortly creeping, sparsely scaly; scales appressed or nearly so, reddish brown, 2-4(-6) cells wide at base, acicular at apex. Fronds approximate; stipe castaneous, (10-) 20-30 cm, quadrangular or sometimes not distinctly so; lamina oblong-subtriangular, 10-18 × 5-16 cm, herbaceous, 3- or 4-pinnate, finely dissected, rounded or truncate at base, confluent apically; pinnae 15-18 pairs, subopposite at base, alternate apically, deltoid-lanceolate to lanceolate, usually sessile, 2- or 3-pinnate, cuneate at basiscopic base and truncate at acroscopic base, apex acuminate; ultimate pinnules linear; veins free, 1(or 2) in each lobe, visible. Sori marginal, terminal on 1(or 2) veins; indusia suborbicular, reniform, or oblong. 2n = ca. 178*.

Terrestrial, forests; 800-1200 m. Hainan [Vietnam].

In the protologue of Odontosoria eberhardtii, two syntypes (Eberhardt 115 and 116) were cited. Two sheets of Eberhardt 115 and one sheet of Eberhardt 116 are in P. The sheet of Eberhardt 116 contains three fully developed fronds and is selected as the lectotype of L. eberhardtii.