800 TUNBBIDGE FILMY PERN. 



Kent. — Just within the limits of the county, at Tunbridge Wells. 



In Ibeland, this fern is not generally distributed, being confined to 

 those romantic parts of a few counties which have for many years attracted 

 the notice of tourists. 



Cork. — The foUowing stations are given in the ' Botanist's Guide for the 

 County of Cork : '" — " At BaUinhassig waterfall : Mr. J. Drummond. Lota 

 Wood and Dunbullogue Glen, Cork : Mr. D. Murray. Glenbower, Kil- 

 leagh, in very great luxuriance : Dr. Power. It is still to be found in all 

 these stations. — Bather rare." — P. 81. 



Kebey. — In the vicinity of KUlamey it attains a degree of luxuriance 

 and profusion that I have never observed elsewhere : it is often mixed with 

 Trichomanes radicans : it not only covers the rooks, but even clings to the 

 bark of trees, ascending the branches to a great height, and presenting a 

 very beautiful appearance. 



WicKLow. — Dr. Mackay informs me it occurs at Powersoourt waterfall, 

 Glenoree, and several other places in this county. 



The radicles are black, wiry, and very slender : the rhizome 

 is long, black, slender, wiry and creeping. The fronds consist 

 of branched series of veins, each being clothed with a membra- 

 nous or filmy wing, the structure in this respect being exactly 

 similar to that of Trichomanes : the branches or pinnae are al- 

 ternate, and each is more or less subdivided ; the divisions or 

 pinnules are mostly in pairs ; the margin of the wing is crenate 

 or denticulate. The clusters of capsules are nearly round, and 

 each is seated almost at the extremity of a short vein, which 

 in each pinna is next adjoining the midrib of the frond. The 

 wing, or membranous portion of the frond, is divided below the 

 cluster of capsules, and incloses it as in a kind of cup, which is 

 usually called the involucre : the upper margin of this involu- 

 cre is notched and uneven; the capsuliferous vein or receptacle 

 does not extend beyond the margin of the involucre. 



