Dryopteris ASPIDIACEAE-POLYPODIACEAE Pyrrosia 



on basal pinna shortened. China, Japan; locally in An., Che., Ki., Ku. Woods. 



12. Dryopteris erythorosora (Eaton) Ktze. (Fa. B. 8:481). 40-85 cm. tall; fr. V-XI. 

 East Asia; locally in An., Ki. Woods. 



13. Dryopteris championii (Benth.) C. Chr. (Ching 4:181). 45-90 cm. tall; fr. IV-XI; 

 pinnules auricled on both sides. China; locally in An., Che., Ki., Ku. Wooded 

 hillsides. 



14. Dryopteris varia (L.) Ktze. (Aspidium varium (L.) Sw.) (H.S.F. 254). 20-90 cm. 

 tall; fr. IV-XII; bullate scales plentiful. East Asia; locally in An., Che., Ki., 

 Ku. Wooded hillsides. 



15. Dryopteris miqueliana (Maxim.) C. Chr. {Rumohra miqueliana (Maxim.) Ching) 

 (Si. 5:67). 40-55 cm. tall; fr. VII-X. East Asia; locally in Ki. Moist woods. 



8. Rumohra Raddi J W%WM (Fu Erh Chiieh Shu; Many-eared Fern Genus) 



Rhizomes stout, widely creeping, densely scaly; scales entire, concolorous: leaves 

 distant: lamina deltoid, with broad base, tripinnatifid to decompound, anadromous in 

 arrangement of pinnules, i.e. with the first pinnule directed toward apex of leaf; 

 margins aristate; veins free: sori dorsal or subterminal on veins; indusium usually 

 orbicular-reniform, attached by a deep sinus, sometimes peltate. 50 species. 



Key to the Species 



a. Apex of pinnules obtuse; scales on stipe lanceolate, entire, glossy .. 1. R. amoena 

 aa. Apex of pinnules acute; scales on stipe linear-lanceolate with very 

 long attenuate tips, caducous. 



Both margins of pinnules incised, lobed 2. R. aristata 



Lower margin of pinnules entire or nearly so. 



Pinnules long and narrow, 12 to 25 mm. long 3. R. simplicior 



Pinnules short and wide, 10 to 15 mm. long 4 . R. amabilis 



1. Rumohra amoena Ching (DeV. F. 75). 50-90 cm. tall; fr. VII-XI; not scaly except 

 at base of stipe. China; locally in Che., Ki. Woods. 



2. Rumohra aristata (Forster) Ching (Aspidium aristatum (Forster) Sw.) (H.S.F. 

 255). 40-80 cm. tall; fr. Vil-IX; pinnules deeply cleft, especially on the upper 

 margin. Asia; locally in An., Che., Ki., Ku. Woods. 



3. Rumohra simplicior (Mak.) Ching (Si. 5:43). 40-80 cm. tall; fr. IV-XII; scales 

 reddish-brown to nearly black, dense. China, Japan; locally in An., Che., Ki. 

 Woods. Fig. 27. 



4. Rumohra amabilis (Bl.) Ching {Aspidium amabile Bl.) (H.S.F. 254). 45-90 cm. 

 tall; fr. V-XII; first adaxial pinnules not elongated and again divided as in R. 

 simplicior. Asia; locally in An., Che., Ki., Ku. Woods. 



25. POLYPODIACEAE R. Br. 7]<tl#f4 (Shui Lung Ku K'o) 

 Epiphytic, petrophilous or terrestrial ferns: rhizomes creeping, usually densely 

 scaly: stipes usually articulate to the rhizome; leaves simple or pinnate, rarely 

 palmately divided; venation free or variously reticulate: sori exindusiate, round, 

 linear, or spread over the surface of the lamina. 65 genera. 



Key to the Genera 

 a. Leaves simple, 

 b. With stellate hairs on lamina. 



Sori spread over under-surface 1 . Pyrrosia 



Sori in a single continuous row between margin and costa: 



margins reflexed 2. Saxiglossum 



52 



