1. Osmolindsaea odorata (Roxburgh) Lehtonen & Christenhusz, Bot. J. Linn. Soc. 163: 335. 2010.
香鳞始蕨 xiang lin shi jue
Lindsaea odorata Roxburgh, Calcutta J. Nat. Hist. 4: 511. 1844; L. bullata Alderwerelt; L. calomelanos Kunze; L. crassipes Rosenstock; L. cultrata (Willdenow) Swartz var. attenuata Hooker; L. cultrata var. pallens Hooker; L. cultrata var. parvula Holttum; L. cultrata var. plumula (Ridley) Holttum; L. cultrata var. varia Copeland; L. loheriana Christ; L. neocultrata Ching & Chu H. Wang; L. odorata var. darjeelingensis T. Sen & U. Sen; L. plumula Ridley.
Rhizomes shortly to long creeping, densely scaly; scales dark, 2-3 mm, 1-4 cells wide at base. Stipe stramineous to greenish with a darker base, rarely dark red-brown, 2-13 cm, abaxially rounded, adaxially grooved; lamina ovate-lanceolate to linear-lanceolate, 7-40 × 1-4 cm, herbaceous, 1-pinnate; rachis abaxially rounded, adaxially grooved, stramineous or dark at base; pinnae 15-30 pairs, alternate except basal ones, shortly stalked, dimidiate, spreading, less than their width apart, lower ones more remote, larger ones 6-20 mm, 3-8 mm wide, twice as long as wide, rhombic-trapeziform to triangular, unequal and attenuate at base, margins incised acroscopically, incisions (0.1-)1-3 mm deep, apex rounded to acuminate; upper pinnules gradually and strongly reduced; veins immersed, simple to twice forked, 0.5-1 mm apart. Sori interrupted, forming 2-6 per pinnule on 2-6 vein ends; indusia sinuate, 1-4 × 0.5-0.7 mm, reaching margin; annulus with 20-24 hardened cells. Spores monolete, smooth. 2n = ca. 300.
Terrestrial or on rocks beside streams, forests, roadsides on slopes, manmade walls; 400-1100 m. Fujian, Guangdong, Guangxi, Guizhou, Hainan, Hunan, Jiangxi, Sichuan, Taiwan, Xizang, Yunnan, Zhejiang [Bangladesh, Bhutan, India, Indonesia, Japan, Malaysia, Myanmar, Nepal, Papua New Guinea, Philippines, Sri Lanka, Thailand, Vietnam; Pacific islands (Solomon Islands)].
Osmolindsaea odorata is also reported from Africa and Madagascar, but these probably represent a different species of Osmolindsaea.