ICONES FILICUM SINICARUM 
IPILAMING, 12s 
GYMNOCARPIUM REMOTI-PINNATUM (Hayata) Ching 
POLYPODIACE 
GYMNOCARPIUM REMOT!-PINNATUM (Hayata) Ching, Bull. Chin. Bot. Soc. 1: No. 2, xiv (1935). 
Dryopteris remoti-tinnata Hayata, Gen. Ind. Ic. Pl. Form. 108 (1917); C. Chr. Ind. Fil. Suppl. 
III. 96 (1934). 
Dryopteris remota Hayata, Mater. Fl. Form. in Journ. Coll. Sci. Imp. Univ. Tokio 30: 421 
(I911), Ic. Pl. Form. 4: 177 (1914); C. Chr. Ind. Fil. Suppl. II. 16 (1913-16). 
Gymnocar pium remotum Ching, Contr. Biol. Lab. Sci. Soc. Chin. Bot. 9; 41 (1933). 
Aspidium Dryopteris var. longulum Chrisr, Bull. Herb. Poiss. II, 2: 830 (1902); Bull. Soc. Bot. 
France 52: Mem. I. 35 (1915). 
Dryopteris Linnaeana C. Chr. Ind. Fil. 275 (1905), pro parte; Acta Hort. Gethob, 1: 42, 55 (1924). 
Dryopteris Robertianu C. Chr. (non Index, 1905) Acta Hort. Gothob. 1! 55 (1924). 
Dryopteris continentalis Petrov, F]. Jakutiz 15 c. ic. 1930. 
Rhizome slender, wide-creeping, densely scaly on new shoots; scales ovate-lanceo- 
late, light brown, membranaceous, fimbriate, long-acuminate; frond far apart, or sometimes 
approximate, stipe 15-26 cm long, slender, firm, pale straminous, sparcely scaly in the 
lower part; lamina deltoid, 10-18 cm each way, tripinnatifid at base; pinnae 5-8-jugate 
under the deeply pinnatifid acuminate apical part, opposite, subpatent, all prominently 
articulated to rachis, the lowest two pairs generally petiolate, the upper ones sessile, the 
basal pair much the largest, 7-13 cm long, 3-5 cm broad, ovate-oblong, on petiole to 2 cm 
long, bipinnatifid under the deeply pinnatifid acuminate apical part; pinnules 5-8-jugate, 
opposite, sessile or adnate or petiolulate in the anterior basal one, which is the longest, patent, 
deltoid-lanceolate, 1-2-3 cm long, I-1.5 cm broad at base, acuminate, pinnatifid down 
nearly to costa into 5-8 pairs of oblong, rounded, entire or inciso-crenate segments under 
the pinnatifid apex; the second pair of pinnae much smaller, broadly lanceolate, to 8 cm 
long, 2 cm broad at base, pinnules oblong, sessile, pinnatifid or incised, the third pair and 
further upper pinnae linear-lanceolate, sessile, pinnatifid or pinnate at base with oblong 
crenate or entire pinnules with rounded apex; texture submembranaceous, light green, 
glabrous on both sides, except rachis near the insertion of pinnae being sparingly and 
shortly glandular; venation fine, distinct, forked or pinnate; sori roundish, brown, exindu- 
siate, much nearer to the margin. 
The species is now found to be fairly common in North and North-western China, 
Manchuria, Sibiria, Sahalin; Corea, Japan and Formosa and also Northwestern Himalayas. 
In China, it has been reported from provinces Hopei, Shensi, Shansi, Kansu, Szechwan, 
Sinkiang and Manchuria (cf. my Monograph of Gymnocarpium p- 41). 
In general habit, this fern resembles G. Robertianaum (Hoffm.) Newman of northern 
Europe and North America, differs, above all, in leaves being eglandular, or sometimes 
only rachis near the articulated inseration of pinnae being sparingly and shortly glandular. 
Plate 172. Fig. 1. Habit sketch (natural size). 2. Ultimate pinnule, showing venation and 
position of sori(x 8.) 3. Portion of rachis, showing the articulation of the base of pinnae (x 6). 4. 
Scale from rhizome (x 10). 
