Jsplenium.] filices. 451 



2. A. lanceum, Thmib. ; Hook. Spec. Fll. iii. 235. Rhizome slender, 

 creeping, with snbnlate scales. Fronds simple, entire or slightly crenate, 

 lanceolate, 4 to 9 in. long, and ^ to 1 in. broad, narrowed into a stipes of 2 

 to 4 in. Veins nearly transverse, mostly twice forked, and not very close. 

 Sori along their upper or both sides, linear, but usually commencing at some 

 distance from the midrib, and not reaching the margin. — A. suhsinuntum, 

 Hook, and Grev. Ic. Fil. t. 27. 



Hongkong, Harland, Lorrain, Hance, Seemann. In Ceylon, the Himalaya, China, and 

 Japan. 



3. A. davallioides. Hook. Spec. Fll. iii. 212; Cent. Ferns, ii. t. 40.— 

 Fronds tufted, 6 to 8 in. high, including a stipes of 2 to 3 in., twice or thrice 

 pinnate at the base, passing upwards into simply pinnate ends, the rhachis 

 flat and almost winged ; the segments cuneate at the base, entire or divided 

 into entire oblong divaricate almost recm-ved lobes, 1 to 1^ lines long. Each 

 lobe bears a single sorus occupying almost the whole of its under surface. 



Hongkong, Bill. On the adjoining continent, in Loochoo and Japan. 



4. A. cuneatum, Lam. ; Hook. Spec. Fil. iii. 168. Rhizome thick, 

 shortly creeping, with subulate scales. Fronds 1 to near 2 ft. high, including 

 a rather long stipes, twice or tlirice pinnate. Segments rigid, cuneate, obo- 

 vate, or the encl ones lanceolate, 3 to 6 lines long, more or less toothed or 

 lobed at the top, narrowed at the base, and mostly petiolidate. Sori 2 to 5 

 on each lobe or segment, linear, very oblique, along the upper or inner side 

 of the vein (that next the centre of the lobe or segment). — A. laset'pitiifoUum, 

 Lam. ; Hook. Spec. Fil. iii. 171, t. 203. 



In the Happy Valley, Urqnhart ; also Hance and Wright. Spread over the tropical and 

 snhtropical regions of the New and the Old World ; extends northward to Bonin and 

 Chusau. 



5. A. macrophyllum, Stc; Hook. Spec. Fil. iii. 158. Rhizome thick, 

 shortly creeping. Fronds tufted, 8 in. to 1^ ft. high, simply pinnate. Pinnte 

 usually 11 to 21, obliquely falcate-lanceolate, acuminate, irregularly sinuate, 

 cuneate at the base, and shortly petiolulate, 2 to 3 in. long in the Hongkong 

 specimens, but much longer in some others ; the terminal larger pinna often 

 shortly lobed at the base. Sori linear, very oblique, extending from near the 

 midrib almost to the margin, along the upper or inner side of the veins, or 

 here and there in the lower part of the pinna, on the outer or lower side. — 

 A. oxyphyllum, J. Sm. ; Hook, in Kew Journ. Bot. ix. 342. 



Hongkong, Bowring, Wright. In the Mauritius, Ceylon, the Malayan Peninsula, the 

 Archipelago, and Paciiic islands, extending northward to Assam, S. China, and Bonia. 



6. A. fraxinifolium, TFall. ; Hook. Spec. Fil. iii. /*. 40 ; Cent. Ferns, 

 ii. ^.19. Rhizome short and thick. Fronds 1 to 2 ft. high, simply pinnate. 

 Pinna? 3 to 11, oblong-lanceolate, acuminate, 4 to 6 in. long, or the terminal 

 one longer, entire or very slightly serrulate, cuneate or very rarely almost 

 rounded at the base, on a short petiolule. Veins slender, once or twice 

 forked, almost always free (not anastomosing). Sori linear, along one or both 

 sides of every second or thii-d vein, sometimes extending almost from the 

 midrib to the margin, but often much ^XiOYiew—Diplasinm elegans, Hook, in 

 Kew Journ. Bot. ix. 343. 



2 G 2 



