爪哇鳞始蕨 zhao wa lin shi jue

Lindsaea chienii Ching var. deltoidea (Y. C. Wu) Tagawa; L. liangkwangensis Ching; L. longipetiolata Ching; L. orbiculata (Lamarck) Mettenius ex Kuhn var. deltoidea Y. C. Wu; L. yunnanensis Ching.

Rhizomes shortly creeping, sparsely scaly; scales appressed or slightly spreading, castaneous, (2 or)3-5 cells wide at base, acicular at apex. Fronds approximate; stipe castaneous, 10-30 cm, quadrangular; lamina deltoid-lanceolate, 7-20 × 6-15 cm, firmly herbaceous to papery, 2-pinnate at base and 1-pinnate apically, pinnatifid and gradually reduced toward apex; pinnae morphologically variable, larger pinnae on middle and lower part lanceolate, upper smaller pinnae rhombic, narrowly triangular, or oblong, pinnae 5-12 pairs, alternate, very unequal at base, basiscopically concave, acuminate at apex, 1-3 basal pinnae 1-pinnate with pinnules rhombic; veins free, mostly twice forked, immersed but ± evident. Sori submarginal, terminal on 2 to many veins; indusia linear, continuous or interrupted. 2n = ca. 130*.

Terrestrial, in forests; 400-1300 m. Fujian, Guangdong, Guangxi, Guizhou, Hainan, Hunan, Taiwan, Yunnan [India, Japan, Malaysia, Myanmar, Thailand, Vietnam].