FILICES. 



133 



scattered hair-like brown scales. Lamina rather thick, snhcoriaceons, 

 opaque, glabrous, dim, evergreen, linear, abrupt at the base, tapering 

 towards the apex, pinnate ; lowest pair of pinnae larger than the suc- 

 ceeding pair, shortly stalked, spreading, deltoid, three-lobed, lobes 

 roundish-obovate, deeply crenate ; middle pinnae smaller than the 

 basal ones, rhombic-ovate, inversely deltoid at the base, obtuse, 

 crenate; terminal pinnae smaller, oval-obovate, wedgeshaped at the 

 base, obtuse, crenate or simply repand, several of them confluent with 

 the terminal lobe of the frond, persistent. Rachis green, not winged, 

 but with the stalk of the pinnae very shortly decurrent, with a few 

 hair-like gland-tipped scales. Lower pinnae flabellately veined, with 

 the veins forked ; middle and upper pinnae with a flexuous mid-vein 

 giving off once-forked branches running to the crenatures, and 

 nearly reaching the margin. Sori oblong-linear, attached to the 

 anterior branch of the ultimate veins beyond their forks and equi- 

 distant from their base and the margins of the pinnae, not confluent. 

 Indusium denticulate. 



Found by Lady Clermont, in 1 863, growing on the back of a garden 

 wall among Asplenium Trichomanes and Asplenium Ruta-muraria, at 

 Ravensdale Park, Newry. Mr. Newman gives the station as " near 

 Flurry Bridge," but I suppose the same place is intended. 



Ireland (extinct). Perennial. Autumn. 



Stipes about 1 inch long. Lamina 2 to 2J inches long by h inch 

 broad. Stalk of the pinnae about ^ inch long. Lowest pinnae 

 about f inch long, and nearly as broad at the base, with three lobes, 

 of which the central one is the largest, each lobe witli a nearly equal 

 vein, which gives off forking branches, but these do not form 

 mid-veins to the three divisions of the pinna ; in the undivided pinnae, 

 however, there is a flexuous mid-vein like that of A. Trichomanes. 

 The spores are immature in the specimen which I have seen, which 

 1 received through the kindness of Lord Clermont ; they appear to be 

 similar to those of A. Ruta-muraria, that is tuberculate with rather 

 large blunt tubercles. 



Distinguished from A. Trichomanes, of which the authors of the 

 ' Cybele Hibernica' " suspect it will prove to be a form," by its stipes 

 being green at the top and the rachis without the prominent dark 

 wing which runs down each side of the upper face. The pinnae also 

 are distinctly though shortly stalked, and the lower ones three-lobed. 

 The venation has also more tendency to be flabellate, and the indusium 

 is conspicuously denticulate. 



From the continental A. Petrarchae, to which Mr. Newman refers 

 it, it differs in not having the stipes wiry, and purplish-black through- 



