HYMENOPHYLLUM TUNBRIDGENSE. 133 
field, near Saddleworth, and near Halifax. In Wales, 
near Cader Idris and Dolgelly. In Ireland, abundantly 
near the Upper Lake at Killarney, and in the county 
of Wicklow, at Powerscourt Waterfall, Glencree, &c. 
Mr. Lightfoot says it occurs frequently in Scotland. 
We have given an instance of the life-retentive power 
of this Fern, when mentioning the similar power 
possessed by the Celerach officinarum. 
This Fern was discovered by Mr. Dare, a botanist of 
the seventeenth century, and was first mentioned by 
Petiver in his Musei Petiverani centuria prima, pub- 
lished in 1695. Mr. Petiver there calls it Darea Tun- 
bridgensis minor, thus commemorating the finder and 
the place where it was found. In the second edition of 
Ray's Synopsis methodica stirpium Britannicarum, pub- 
lished in 1696, it is stated that " this Fern was first 
shown to Mr. Bay by Mr. Newton, who, in company 
with Mr. Lawson, found it on Buzzard rough Cragg, 
near Wrenose, Westmoreland, among the moss. Dr. 
Richardson met with it upon moist rocks in Wales, and 
near Settle, in Yorkshire. It grows on the left hand 
as soon as you enter the mountains to go to the old 
castle, near Lhanberis. It was found also plentifully 
by Mr. Rand, in company with Mr. Sherard, among 
the pebbles at Cockbush, six or seven miles from Chi- 
chester, on the coast of Sussex." 
The Hymenopliyllum Tunbridgense is one of the smallest 
and most interesting of all the British Ferns, and al- 
though we meet with it in its native state, spreading 
over and flowering interestingly upon the exposed sur- 
