48 
FERNS. 
[Asplenium. 
doe, not constitute a variety. more especially « not more than two or three 
branched frond, are found upon a plant, all the rest being of the common 
character and appearance. 
and Gordale, Yorkshire, Mr. K. f~'„nd Yorto^r J1W Settle, 
r pulnnds Near Ais-la-Beek, and Richmond, \oiks., Mr. j 
L ey tanas. ^eara , ’ Idris, Mr. J. E. Bowman. Snowdon, Mr. C. C. 
Mr. Chorley. ■ ■ • • , ,j Q 00vet . Not uncommon on the 
Babinyton. Twll. Du Caem, Mr. 1. H. Cooper Cawder 
Wdeh mountains, -Vr. . * son - Bage ‘ of Benmor e, Sutherlandsh., Dr. John- 
Woods, Nairns, Mr. II . staple • , snecifvintr of stations, 
Tn V C ^r-ir^uKiim n i^.m,ben count, 
of SIDofandon the Donegal Mountains, near Lough Eske, Mr. Mackay. 
Geo. — G ermany, Holland, Switzerland, France; very rare, except on the 
mountains of Tyrol and Larin thia. 
7 asplenium fontanum. 
SMOOTH ROCK SPLEKNWOUT. 
(Plate 5, fig. 1.) 
Cha .__ Frond bipinnate. Pinnae oblong, blunt, alternate. Pm- 
miles wedge-sliaped, cleft, and toothed, llacliis winged. 
Bolt , With . — Athyrium fontanum, Gray. 
FlG _ F B 2024. — Lob. Ic. 810, 1 .-Bolt. 21, (bad.)-Neum., page 4. 
DFS-Root tufted, long, black. Frond lanceolate, bipinnate, 
evergreen, 2 to 6 inches high. Rachis winged throughout P.nnae 
alternate, ovate, oblong, those in the middle of the frond from a 
quarter to half an inch long, formed of six or eight pmnules placed 
alternately. Pinnules short, broadly wedge-shaped, petio cd, so 
vevv deeply cleft at the sides and toothed at the apex as to become 
nearly pinnate. Seldom more than two son upon each pinnule, 
which soon extend over the whole surface of it. 
Our present species most resembles Asplenium lanceolatum, the shape of the 
frond being nearly the same. The fontanum, however, is much more dehcate 
Ld smaller in all its parts, of a very dark green color, its pinnules not halt the 
size and of a very different shape to those of the lanceolatum, besides which 
its winged rachis is of itself a sufficient diagnostic. It is very much more 
difficult to distinguish it from Asplenium Halleri, a species that is very rare on 
the Continent, and for which our fontanum is very generally sold 
it Sumioscd to be now extinct in England ; it was once found on Amcr- 
SrXZi'd, 11 or ic year, ago and .1,0 that it once grew on AWk 
Castle ; but if so, it is no longer found there. 
Geo.— Saxony, Switzerland, South Europe, and Siberia. 
