ASPLENIUM LANCEOLATUM. 321 



In Great Britain its range is extremely limited, and its loca- 

 lities strangely diversified as regards altitudinal and geologi- 

 cal conditions. It is entirely absent, as far as my information 

 extends, from Scotland, Ireland, and North and Central Eng- 

 land. In North AVales it occurs on several high and exposed 

 localities; for instance, in Caernarvonshire, upon the highest 

 range between Llanrwst and Capel Cerig, accompanied by A. 

 septentrionale. 



Caebnarvonshihe. — Mr. Wilson informed me that in 1843 he gathered 

 a few fronds of this fern near my Llanrwst station for Asplenium septentri- 

 onale, and that it was first observed there by his brother, Mr. H. Wilson, 

 two years previously. Mr. E. T. Bennett also found it within this county, 

 on rocks above Tremadoc ; and again plentifully on Carry -y-Imbill, a bold 

 and almost insulated rock at the entrance of Pwllheli harbour. 



Merionethshire. — The vicinity of Barmouth seems a very favourite 

 locality for this fern. Before 1 was at all acquainted with ferns, T found it 

 in profusion on an old stone wall between Barmouth and Dolgelly, and was 

 struck with its similarity to, yet distinctness from, Asplenium Adiantum- 

 nigrum. I afterwards found it in many localities near Barmouth, particular- 

 ly on roclffl close to the road, on the left hand leaving the town for Dolgelly. 

 I also found it in two other stations in this county ; the first on some rooks 

 on the right hand of the road between Tan-y-bwlch and Aberglaslyn, and the 

 second on a rock close to Aberglaslyn. Mr. S. Thompson, guided by my 

 record of these localities, subsequently found half-a-dozen roots in the first 

 of them. 



Pembrokeshire. — Mr. Lees informs me that he found it on Ramsay 

 Island, opposite St. David's, on rocks a little south of the only habitation 

 on the island. 



(Oxfordshire. — Adderbury Church, according to Bobart : doubtless 

 an error). 



Glodoestehshire. — Mr. Lees informs me that he found it on a wall at 

 Beechly, near the junction of the Severn and the Wye. Oldbury and 

 Court Woods have been published as stations ; Mr. Watson adds Pennant 

 Roclis, near Stapleton, on the authority of Mr. Thwaites ; and Mr. Thwaites 

 himself has published the following note in the ' Phytologist : ' ■ — " Mr. J. 

 W. Ewing, of Norwich, who resided here for some time a few years ago, 

 discovered the plant growing on a bank at Stapleton, about three miles from 

 Bristol, and pointed out the spot to me. Not paying much attention to 

 the ferns at that time, the circumstance escaped from my memory, until 

 reminded of it by a friend who was with us at the time. I have recently 

 revisited the spot, and again found the plant, but growing there very spar- 

 ingly; however, by searching very diligently, day after day, the rocks in the 



