ICONES FILICUM SINICARUM 
PLATE 76 
LEPISORUS THUNBERGIANUS (Kaulfuss) Ching 
POLY PODIACEAE 
LEPISORUS THUNBERGIANUS (Kaulfuss) Ching, Bull. Fan Mem. Inst. Biol. 4: 88 (1933). 
Pleopeltis Thunbergiana Kaulfuss, Wesen. d. Farrnke. 113 (1827). 
Polypodium lineare Thunberg (non Burm. 1768, nec. Houtt. 1783), Fl. Jap. 335 (1784), 
Iconogr. Fl. Jap. 11. t. 9 (1794); Baker in Hooker, Syn. Fil. 354 (1868), pro parte; C. 
Chr. Ind. Fil. 540 (1906), pro parte; Ogata, Ic. Fil. Jap. 2: pl. 86 (1929). 
Pleopeitis linearis Moore, Ind. Fil. 346 (1826); Bedd. Handb. Ferns Brit. Ind. 346 (1883). 
Pleopeitis nuda Hooker, Journ. Bot. (1875) 355 (non 1823). 
Rhizome rather thick, creeping, densely scaly; scales atratous, rigid; opaque, 
linear-subulate from a broadly ovate base, dark-colored, except the broad margin of the 
base being hyaline with clear, elongate luminae with thin walls; frond rather approxi- 
mate, 10-18 cm long, I-1.5 cm broad, Jinear-lanceolate, acuminrte, gradually attenuate 
to a short stipe; texture coriaceous, color obscure; sori large, rounded, nearer.to the costa 
than to the margin, close or almost contiguous at maturity. 
Kiangsi: Kiukiang, David 837 (1867). Kwei-chow: Van-ching Shan, Y. Tsiang 
7848; Pin-fa, Cavalerie 2179, Fukien: Amoy, Swinhoe (1870); Foochow Alexander (pro 
parte); Ku-shan, H. H. Chung 3772. Chekiang; Tien-tai Shan, H. H. Hu 282 (1920); 
C. Y. Chiao 14891, 14208 (1927); Hangchow, Fan Chiao, R. C. Ching 3865. Kwangtung: 
Lungtau Shan, C. C. C. 12051; Tsiang-liang Shan, McClure 6722; Lockchong, N. K. Chun 
43006, 42557; Lohfau Shan, 149 ex Herb. Hongkong; Swatow, Thai-yong, Dalziel, July, 
1910; Kwangsi: Yao Shan, Sin & Whang 190, on recks; San-fang, Tang-loo, R. C. Ching 
5675 (1928); Sch-fang Dar Shan, R. C. Ching 7865. Szechuan: Mapien Hsien, W. P. 
Fang 206; ibid. W. P. Fang 1769. Hainan: Hancock 111 (Kew No.). Kiangsu: Fen- 
whang Shan, C.G. Matthew, June 1, 1904; Carles 416, Oct. 1881; Wusih, Wei-shan, 
R. C. Ching 3486 (1927); I-shing, Y. L. Keng 2444. Anwhei: Whang Shan A. N. Steward 
7194, S. S. Chien 1067; R. C. Ching 8582; K. K. Chow (1925). 
Type from Japan. A common fern in the eastern and southeastern part of China 
as well as Japan, Quelpaert, Formosa and the Philippines. Its previous report by 
authors from Manchuria, northern Korea and North China proves to be a mistake for L, 
ussuriensis (Regel et Maack). The specimens so-called Polypodium lineare from western 
and northwestern China should for the most part be referred to L. contortus (Christ). 
Plate 76. Fig. 1. habit sketch (natural size). 2. peltate paraphysis from a sorus (X50). 3. 
scale from rhizome (X50) 
