FILTCES. 81 



teeth of the ultimate segments, except the first anterior branch. Sori 

 occupying the whole frond, except sometimes the lowest pair of 

 pinnae, attached to the back of the first anterior branch of the ulti- 

 mate mid-veins forming a line on each side of the ultimate pinnules 

 or ultimate segments, about equidistant from the midrib and the 

 margin of the pinnule or segment, and extending nearly to its apex. 

 Indusium rather thin, but retaining its form, subpersistent, roundish- 

 reniform, slightly convex, with a few clavate or stalked glands 

 round the margin, and sometimes a few on its surface. Spores finely 

 muricate, with very numerous small acute tubercles. No barren 

 fronds unlike the fertile ones. 



Darley Dingle, Shropshire ; boggy places on Ankerberry Hill, 

 near Sedbrook, Forest of Dean, Gloucester ; and " Epping Forest, 

 Essex " (Mr. Doubleday ; Newman). L. glandulosa has been reported 

 from several other stations, but I do not feel sure that these are the 

 same as plant so-called by Mr. Newman. 



England. Perennial. Summer, Autumn. 



Lamina 14 inches by 7 inches to 2 feet by 8 inches, remarkable for 

 the number of minute glands sprinkled on its lower surface. 



L. glandulosa is a very puzzling form, being intermediate between 

 L. spinulosa and L. dilatata, and to some extent between L. remota 

 and L. dilatata. The caudex I have never seen, but from Mr. New- 

 man's description and from the recollections of the Rev. W. H. 

 Purchas I conclude it must resemble those of L. remota and L. dila- 

 tata, in not breaking into a number of small crowns, and in the 

 divisions keeping an upright position and attaining a large size, with 

 very numerous fronds arranged shuttlecock-fashion. But if a plant 

 found at Windermere, Westmoreland, by Mr. F. Clowes, really belong 

 to L. glandulosa and not to L. spinulosa, it has a caudex " nearly, if not 

 quite, as creeping as that of spinulosa " (' Phyt.,' ser. ii. 1860, p. 229). 

 The scales are intermediate in character between L. remota, L. spinu- 

 losa, and L. dilatata, most like those of the first, perhaps, but more 

 highly coloured, and not denticulate at the margins; the larger 

 ones resemble those of spinulosa, but have generally a more decided 

 dark shade in the centre, though less so than those of dilatata, and 

 they are also thinner in texture than those of the last-named plant. 

 The lamina is most like that of L. spinulosa in outline and in the 

 shape of the pinnules, but the pinnae are longer and narrower, and 

 the teeth more incurved, and (judging from dried specimens) the 

 veins are but very faintly impressed on the upper surface : still, were 

 it not for the stout caudex, which does not break into numerous 

 crowns, the narrower and often darker-centred scales, and, above all, 

 the finely muricated (not coarsely and sparsely tubercled) spores, 

 — the plant might be considered a broad-fronded and extremely 



VOL. XII. M 



