ICONES FILICUM SINICARUM 
PLATE 118 
QUERCIFILIX ZEYLANICA (Houtt.) Copeland 
POLYPODIACEZ 
QUERCIFILIX ZEYLANICA (Houtt.) Copeland, Phil. Journ. Sci. 37: 408 (1928); Univ. 
Calif. Publ. Bot. 16: 67 (1929); C. Chr. Ind. Fil. Suppl. III. 169 (1934). 
Ophioglossum zeylanicum Houtt. Nat. Hist. 14: 43 (1783); Pfl. Syst. 13: 47 t. 94 f. 1 (1786). 
Leptochilus zeylanicus C. Chr. Ind. Fil. 388 (1905); Merr. Enum. Pl. Hainan in Lingnan Sci. 
Journ. 5: x11 (1927); Ogata, Ic. Fil. Jap, 1: t. 32 (1928). 
Acrostichum quercifolium Retz. Obs. Bot. 6: 39 (1791); Hk. Sp. Fil. 5: 279 (1864); Ic. Pl. t. 
905; Fil. Exot. t. 80 (1858); Syn. Fil. 418 (1867); Dunn & Tutch. Fl. Kwangt. & Hongk. 255 
(1912). : 
Gymnopteris quercifolia Bernh. in Schard. Journ. Bot. 18061. 20 (1807); Presl, Tent. Pterid. 244 
(1836); Bedd. Ferns S. Ind. t. 47 (1863); Handb. Ferns, Brit. Ind. etc. 403 (1883); J. Sm. 
Hist. Fil. 138 (1875); Christ, Farnkr.d. Erde 49 (1897); Diels in Engl. u. Prantl: Nat. 
Pflanzenfam. 1: 4. 200 (1899). 
Leptochilus quercifolius Fée, Acrost. 88 (1845). 
Dendroglossum quercifolium Fée, Gen. Fil. 80 t. 7B. f. 1 (1850-52). 
Rhizome creeping, slender, densely clothed in lanceolate, rufo-brown, rather 
thick scales; frond uniseriate, 1 cm apart, strongly dimorphous, sterile ones on stipe 
3-5 cm long, angular, ferruginous-hairy, hairs soft, multi-cellular, spread, lamina 
ligulate with hastate base, 6-9 cm long, 2-3 cm broad, apex rounded, base cordate, 
generally with one free, deltoid blunt pinna on each side, the central part much 
the largest, inciso-crenate, lateral main veins distinct, intervening veinlets irregular- 
ly anastomosing with included forked veinlets, costa and veins underneath copiously 
provided with rufo-brown, spread long hairs, margin ciliate, subglabrous above; 
fertile frond on stipe 10-18 cm long, slender, subnaked, lamina trifoliolate, strongly 
contracted into linear segments, the lateral segment generally with one additional 
lobe below, the central segment much the longest, pinnatifid into a few shallow, 
roundish, remote lateral lobes; tewture thin herbaceous; veins also reticulated but 
much simpler than in the sterile fronds; sori linear, continuous, uniseriate between 
costa and margin, confluent at last. 
Hongkong: Matthew, Nov. 1907. Kwangtung: Lohfau Shan, Pakwan 92 in 
herb. Hance (1871). Kwangsi: Lungchow, Morse 5; Dar Wan, Tan-lan, R. C. Ching 
6553 (1928). Yunnan: Szemeo, Henry 13388. Hainan: Nodoa, F. A. McClure 7860. 
Also Formosa, Tonkin, Southern India, Ceylon and Malesia-Polynesia. 
The genus Quercifiliz, of comparatively a recent date, contains only one ter- 
restial little fern, fairly common in South China, on shaded moist banks of river. 
Its affinity to Tectaria is obvious according to Copeland. 
Plate 118. Fig. 1-3. Habit sketch (natural size). 4. Portion of sterile lamina, showing venation 
(x 5). 5. Fertile frond, showing sori at young state (x 3). 6. Scale from rhizome (x 24). 7. Cross sec- 
tion of rhizome (x 15). 8. Cross section of the basal part of stipe (x 14). 9. Spores (x 200). 10. Hairs 
from stipe (x 80). 
