ICONES FILICUM SINICARUM 
PLATE 75 
LEPISORUS CONTORTUS (Christ) Ching 
POLY PODIACEAE 
LEPISORUS CONTORTUS (Christ) Ching, Bull. Fan Mem. Inst. Biol. 4: go (1933). 
Polypodium contortum Christ, Bot. Gaz. 51. 347 (IQII). 
Polypodium lineare var. contortum Christ, Nuovo Giorn. Bot. Soc 
. Ital. n.s. 4: 98 pl. rz. f. 3 
(1897); Diels in Engl. Jahrb. 29: 204 (Igor). © 
Polypodium lineare var. Thunbergianum {. contorta Takeda, Notes, R. Bot. Gard. Edinb. 8: 270 
(1915). oe 
Polypodium Onoei Franch. Pl. David. in Nouv. Archiv. II. 7: 355 (1883, non 1879). 
Polypodium lineare Franch. (non Thunberg) 1. c. 354; Christ, Bull. Herb. Boiss. 6: 860 (1898); 
Bull. Acad. Géogr. Bot. (1906) 105; Bot. Gaz. 51: 374 (1911) 
Rhizome thick, wide-creeping, densely scaly on the young parts; scales ovate- 
acuminate, rufo-brown, appressed, dentate, luminae elongate, rather clear except, the 
central ones being darker colored with thick walls; frond distant, 15-40 cm long, about 
I cm broad, linear, naked; texture coriaceous, color pale green; sori ovate, large, medial, 
but oblong and oblique when young. 
Shensi: Mt. Ku-lu, Giraldi, August, 1894 (type); Kuan-tou San, Giraldi, Nov. 5, 
1896; Ngo-shan, Giraldi, Oct. 1894; Rin-san, Giraldi, July 23, 1897; Tsinglin, David, 
April, 1874; ibid. David, March, 1873; Purdom 92, 93. Szechuan: Tatsienlu, E.H.Wilson 
2633, 2634, June, 1908; Fang Hsien, Wilson 2636, 2635, August, 1908; Mt. Omei, W. P. 
Fang 3064, 2995, 2984, 3055; Faber 1069; Hanynon Hsien, P.W.Fang 4779; Hon-ya, O- 
shan, W. P. Fang 6445, 6665. Hupeh: Henry 5654. Yunnan: Lickiang, C. Schneider 2685: 
G.Forrest 15556; Henry 9893, 10087A. Hancock 93; Maire 2779; Sungwei, G. Forrest 
295, Delavay 10 (1883). 
Tibet: Yatung, Hobson (1807), 
A common fern in the above localities and generally considered by authors as 
Poiypodium lineare, from which it differs in rufo-brown, ovate-acuminate rhizome scales, 
which are reticulate with rather clear, large luminae except the centre being dark-color- 
ed, and in thick coriaceous leaves of a pale green color and attached to the wide-creeping 
rhizome at greater distance. 
Plate 75. Fig. 1. habit sketch (natural size). 2. peltate paraphysis from a sorus (X50). 3. 
scales from rhizome (X50). 
