钝齿鳞始蕨 dun chi lin shi jue

Lindsaea decomposita Willdenow f. longipinnula Alderwerelt; L. decomposita f. minor Alderwerelt; L. furcata Copeland.

Rhizomes shortly creeping, covered with scales; scales appressed, brown, narrowly triangular, ca. 4 cells wide at base, acicular at apex. Fronds approximate; stipe castaneous, 10-30 cm, quadrangular; lamina 10-30 × 10-20 cm, herbaceous to papery, 2-pinnate with 1 or 2 lateral pinnae or 1-pinnate; pinnae linear, lateral pinnae 0-2(or 3) pairs, not narrowed toward base, distal part gradually narrowed, apex acuminate; pinnules 20-25 pairs, dimidiate, rhomboid, lobed on upper margin, incisions reaching at most to 1/3 pinnule width, apex rounded or truncate, ultimate lobes straight or ± convex at apex; veins anastomosing, evident or not. Sori marginal or submarginal, terminal on 2-5 veins; indusia linear, interrupted.

Terrestrial, forests; 300-400 m. Taiwan (Pingdong, Taibei, Yilan) [Malaysia, Thailand; Australia, Pacific islands].

For a complete synonymy, see Kramer (Fl. Males., Ser. 2, 1: 218. 1971).