THE BLACK MAIDENHAIR SPLEENWORT. 79 
Ireland, and the Channel Islands, and ranging from the coast level 
to an elevation of nearly 2000 .eet in the Highlands. It varies, 
with comparatively small fronds and short blunt pinnules, and with 
large elongated fronds, acuminated pinne, and narrowish elongated 
pinnules; but these forms have no exact limits. The variety 
acutum, in its true form, has been hitherto found only in Ireland, 
namely, in the vicinity of Killarney, and on Cahir Conree, both in 
Kerry; and also on the Dublin mountains. The plant has been 
recorded from Jersey, but it seems probable that the Jersey plant is 
rather an attenuated intermediate form of the more usual state of 
the species. Sherard’s plant from Mourne mountain, Down, the 
Asplenium Adiantum-nigrum B. of Sir J. E. Smith, and referred. to 
Asplenium acutum by recent writers, is not referrible here, but to 
Athyrium Filix-femina. The species is too commonly met with to 
admit of.a full list of localities being given, but an indication of 
its range will be afforded by the following summary :— 
Peninsula.—Cornwall. Devonshire : Challacombe, and Marwood, 
Rev. F. Mules; Ottery St. Mary, G. B. Wollaston; Totnes; 
Teignmouth; Exeter. Somersetshire: Bath, R. Withers. 
Channel.= Hampshire, and the Isle of Wight. Dorsetshire : 
Poxwell near Dorchester. Wiltshire: Redlynch, Downton, W. 
Moore. Sussex. 
Thames.—Hertfordshire. Middlesex. Kent. Surrey: St. Mar- 
tha’s Hill, Compton, and elsewhere near Guildford, Cobham. Berk- 
shire. Buckinghamshire: Burnham. Oxfordshire. Essex: Norton 
Heath. 
Ouse.= Bedfordshire. Suffolk. Norfolk. Cambridgeshire. North- 
amptonshire. 
Severn.— Warwickshire : Stratford-on-Avon. Gloucestershire. 
Monmouthshire, 7. H. Thomas. Herefordshire. Worcestershire. 
Staffordshire. Shropshire: Haughmond Hill, Rev. W. A. Leighton, 
and elsewhere. i 
Trent.—Leicestershire. Rutland. Nottinghamshire. Derbyshire. 
Mersey.—Cheshire. Lancashire. 
Humber.—Y orkshire : Wensleydale, C. H. Conica; Ellington. 
Tyne. Durham. Northumberland. 

