ICONES FILICUM SINICARUM 
PLATE 77 
LEMMAPHYLLUM SUBROSTRATUM (C. Chr.) Ching 
POLYPODIACEAE 
LEMMAPHYLLUM SUBROSTRATUM (C. Chr.) Ching, Bull. Fan Mem. Inst. Biol. 4: 97 (1933). 
Polypodium subrostratum C. Chr. Ind. Fil. 567 (1906); Takeda, Notes, R. Bot. Gard. Edinb. 
8: 311 (1915). 
Polypodium rostratum Hooker (non Burm. 1768, nec Cav. 1802), Ie. Pl. t. 953 (1854); A Cent 
Ferns t. 53 (1854); Hayata, Ic. Pl. Form. 4:.253 f. 177 (1914). 
Pleopeltis rostratum Bedd, Ferns Brit. Ind. t. 159 (1866); Handb. Ferns Brit. Ind. 345 (1883). 
Rhizome slender, wide-creeping generally on the trunk of trees, greenish, sparcely 
scaly; scales thin, clathrate, fusco-brown, lanceolate-subulate from a rounded base 
provided with a few large teeth or protruding arms; frond far apart, short-lanceolate, 
6-10 cm long, 2-2.5 cm broad; apex rostrate, gradually attenuate to the short stipe, 
often subdimorphous, fertile one being longer and narrower; texture carnoso-subcoriaceous, 
naked, color pale green; venation more or less distinct at least under light; sori 
medium-sized, distinct or rarely two imperfectly fused. 
Kwangtung: Lockchong, Y. K. Wang 31446, 42270; Lohfau Shan, 83 ex Herb. 
Hongkong (1883); S. P. Ko 50074; Yingtak, C. G. Matthew, April 7, 1907; Lungtau 
Shan, C. C. C. 12531; North River, C. L. Tso 21114. Yunnan: Mengtze, Henry 10448, 
13302; Hancock 181; Keng Hung, J. F. Rock 2690; Ku-long-tchang, EF. E. Maire, 
Kweichow: Cheng-feng, Y. Tsiang 4793; Yaoren Shan, Sanhoa, Y. Tsiang 6305; 
Yingkiang, Tu-shan, Y. Tsiang 6716 (f. typica). Kwangsi: Sin & Whang 46 (1926); Yao 
Shan, Sin & Whang 7 (1928); Yao-mar Shan, Lin Yen, R. C. Ching 7006, 7104; Chu-feng 
Shan, San-fang, R. C. Ching 5807 (f. typica). 
A common fern, generally epiphytic on the trunk of trees in deep ravines under 
forests. A transitional species from Lepisorus to Lemmaphyllum. 
Plate 77. Fig. 1. habit sketch (natural size). 2. peltate paraphysis from a sorus (X50). 3. 
scale from rhizome (X50). 
