504 MR. C. B. CLARKE ON THE FERNS OF NORTHERN INDIA. 
Subgenus VIII. Hemedictywm. Veins anastomosing obliquely towards the margin of 
the frond. Involucres linear or oblong, dehiscing from their outer edge, none 
placed back to back. 
55. A. CgTERACH, Linn. Sp. Pl. 1538. Fronds linear, pinnatifid (or scarcely pinnate) into 
obtuse lobes, densely covered with brown-red scales beneath.—H ook. Sp. Fil. iii. 273, 
Brit. Ferns, t. 36; Hk. & Baker, Sp. Fil. 245. Grammitis Ceterach, Swartz, Syn. 
Fil. 23. Ceterach officinarum, Willd.; Hk. & Bauer, Gen. Fil. t. 1134; Milde, Fil. 
Europ. 94; Bedd. Ferns Brit. Ind. t. 71. Scolopendrium Ceterach, Engl. Bot. 
t. 1244. Hemidictyum Ceterach, Bedd. Ferns Brit. Ind. Suppl. p. 13, but not 
admitted by Presl. 
Kashmir, alt. 3000-6000 feet; not common. North-West India, Hdgeworth.—Distrib. 
Afghanistan, Western Asia, North-west Africa, Europe. 
The Indian plant is identical with the English form, and has no tendency towards the 
Macaronesian Ceterach aureum, Link. The striations of the cell-walls of the pales is 
marked in this form aureum and easily seen ; buta similar, though less complete, striation 
can be made out in the pales of 4. Ceterach type with a 1-inch and oblique light. 
56. A. FiNLAYSONIANUM, Hook. Sp. Fil. iii. 271 (syn. excl), not of Wall. Tufted, 
pinnate rarely simple, glabrous or nearly so; pinne often irregularly sparingly 
lobed, or the terminal pinna rhomboidal; texture leathery ; the veins more obscure 
and wider apart than in 4. macrophyllum.—Hook. Ic. Pl. t. 937; Hk. & Baker, 
Syn. Fil. 245. A. Hookerianum, Wall. Cat. 2682, not of Wall. Cat. 7090, nor of 
Colenso. Hemidictyon Finlaysonianum, Moore; Bedd. Ferns Brit. Ind. t. 72. 
North and East Bengal, with Assam; alt. 0-3000 feet, very common, especially in the 
lower Khasi valleys.—Distrib. Malay Re 
Often producing rooting buds from the midribs of the pinnz near their apex. Variable 
in size ; frond usually 1 foot, sometimes 3-4 feet; 8 feet noted by Sir J. D. Hooker; not 
rarely Fédubed to 14-6 in., quite simple and eee whole of Wall. Cat. 191 (A. 
Finlaysonianum, Wall.) in the large paper set is 4. macrophyllum, as Moore has found 
out long ago; there is no admixture whatever. Wallich first named A. macrophyllum 
as A. integerrimum, which is figured by Hk. & Grev. Ic. Fil. t. 136. Wallich originally 
named our present Fern Aspleniwm Hookerianum, Wall. Cat. 2682; but unfortunately 
he subsequently issued the very different Asplenium bantamense under the name A. 
Hookerianum, Wall. Cat. 7090.—The question will arise whether we are not bound to 
take up the name of 4. Hookerianum, Wall, for this plant: I trust not. As Wallich 
issued two different plants under the name 4. Hookerianum, I think we may pin him 
down to whichever is now most convenient, and maintain that A. Hookerianum, Wall., is 
our A. bantamense and that Wallich did not mean our 4. Finlaysonianum to be named 
A. Hookerianum, 
26. ALLANTODIA, Wall. coe PN 
Veins ge Involucre oblong, along the imc veins, breaking up regu = : 
