ICONES FILICUM SINICARUM 
PLATE 108 
ATHYRIUM SHEARERI (Baker) Ching 
POLY PODIACEA 
ATHYRIUM SHEARERI (Baker) Ching in C. Chr. Ind. Fil. Suppl. III. 44 (1934). 
Nephrodium Sheareri Baker, Journ. Bot. (1875) 200. 
Dryopteris Sheareri C. Chr. Ind. Fil. 292 (1905). 
Nephrodium isolatum Baker, Gard. Chron. n. s. 14: 494 (1880). 
Aspidium polypodiforme Makino, Bot. Mag. Tokio 6: 46 (1892, nom. nud.) 
Nephrodium polypodiforme Makino, Bot. Mag. Tokio 13:. 58 (1899); Matsum. Ind. Pl. Jap. 1: 323 
(1904). 
Dryopteris polypodifornvis C. Chr. Ind. Fil. 285 (1905); Makino et Nemoto, Fl. Tie. I62I (1925). 
Athyrium polypodiforme Tagawa, Acta Phytotax. et Geobot. 1: 158 (1932). 
Aspidium otarioides Christ, Bull. Acad. Géogr. Bot. (1902) 247. 
Dryopteris otarioides C. Chr. Ind. Fil. 282 (1905). 
Dryopteris subsagenioides Christ, Bull. Acad. Géogr. Bot. (1910) 8; C. Chr. Ind. Fil. Suppl. I. 40 
(1912); Nakai, Fl. Kor. 2: 306. 
Rhizome wiry, wide-creeping, black, apex and base of stipe sparcely disthed 
in brown, thin, lanceolate scales; frond far apart, stipe 10-20 cm long, straminous, 
naked, lamina oblong or deltoid-ovate, 15-20 cm long, 10-15 cm broad, pinnate un- 
der pinnatifid, deltoid-lanceolate, acuminate apex; teature thin, herbaceous, green, 
glabrous except rachis and costa which are sparcely setaceous underneath; pinnxe 
4-8-jugate, subfalcate, acuminate, sharply serrate, the lower ones sessile, the upper 
ones adnate, truncate or cuneate at base, 6-10 cm long, 1.5-2 cm broad, lobato-in- 
cised ; lobes oblong or rounded with aristate teeth; veins distinct, pinnate in lobes, 
3-4-jugate, veinlets simple, curving up into the teeth; sori small, rounded, dorsal 
on the lower 2 pairs of veinlets, indusium reniform, setaceous, very fugaceous, 
Kiangsi: Kiukiang, Lu-shan, Dr. Shearer (type) (1873); Maires (type of Neph- 
rodium isolaium); N. K. Up 1832; Paradise Pools, Charles E. DeVol 25, July 27, 1933, 
edge of stream. Chekiang: Hangchow, Fan-chiao, R. C. Ching 3715. Hupeh: Shin 
Shan Hsien, S. S. Chien 8111 in herb. Univ. Nanking, July 29, 1922. Kweichow: 
Tenyen, Y. Lsiang 5802; Tin-fan, Cavalerie 2050; Pin-fa, Cavalerie 46, 1839; Tsin- 
gay, Bodinier 2050 (type of Aspidium otarioides). Szechwan: Nanchuan, W.P. Fang 
5794. 
Corea: Quelpeert, Taquet 2382 (type of Dryopteris subsagenioides). 
Also Japan, common. 
This peculiarly distinct fern, known under many a name as cited above, 
has been subjected to much nomenclatural changes. Its position in Athyrium can, 
however, hardly be doubted, if the generic status of Anisocampium Presl is not re- 
cognized. Our species is closely related to Athyrium Cumingianum (Presl) Ching 
(Dryopteris otaria O. Ktze.), differs chiefly in the shortly setose rachis, costa and 
costules underneath, aristate serrature and free venation. 
Plate ro8. Fig. 1. Habit sketch (natural size). 2. Portion of basal pinna, showing venation 
and position of sori (x 5). 3. Indusium (greatly enlarged). 4. Scale from rhizome (x 20). 
