Plate 28. 
ASPLENIUM Euta-mttbaeia, L. 
Wall-Rue . 
Asplenium Ruta-muraria , L.; small, caudex short, subrepent, rooting ; stipites 
thickly tufted, two to four inches long, green, brown below and scaleless; 
fronds one to two, rarely three inches long, ovate in circumscription, bipin- 
nate (very rarely subtripinnate) ; primary pinnae few, subcoriaceous, three to 
seven ; pinnules and superior pinnae (which are often undivided) rhomboid 
or obovato-cuneate, tapering below into a rather long winged petiole, very 
obtuse or even truncated at the apex, and three-toothed, often bifid or trifid; 
veins several times forked, subflabellate; sori linear-oblong, two to four or 
five on a pinnule, entire or more frequently erose at the margin. 
Asplenitjm Ruta-muraria. Linn. Sp. PI. p. 1541. Sw. Syn. Fil. p. 85. Schk. 
Pil. p. 75. t. 80 B. Willd. Sp. PI. v. 5 .p. 841. Engl. Bot. t. 850. Bolton 
Fil. p. 28. t. 16. Hook. Gen. Fil. t. 80. Sm. Engl. FI. v.4. p. 309. Hook, 
and Am. Brit. Fil. ed. 8. p. 589. Moore, Brit. Ferns , Nat. Print, t. 41 A. 
Asplenium murorum. Lam. FI. Fr. v. 1. p. 28. 
Aceostichum Ruta-muraria. Lam. HI. t. 865./. 1. 
Anesium Ruta-muraria. Newm. Brit. Ferns , ed. 3. p. 263. 
ScOLOPENDRIUM. Roth. 
Tarachia, Pr. 
Hab. Common on rocks and old walls and buildings throughout Great Britain 
and Ireland; less frequent in the extreme north. 
I have already alluded to the close affinity between this and 
the much rarer Asplenium Germanicum, , the subject of our last 
Plate. This is by far the most abundant, and affects dry walls 
as well as the clefts of rocks, often on their perpendicular faces, 
the roots and even the caudex or rhizomes so tightly imbedded 
as to render it frequently very difficult to obtain good specimens. 
It seems to be widely distributed in other countries, from the 
north of Sweden, throughout all Europe and temperate Asia. 
Altai ( Ledebour ); North and South Africa (the Hon. Rawson W. 
Rawson) ; northern India, Kashmir (Dr. Thomas Thomson ); Kara- 
bagh, in Georgia (herb, nostr.); Tibet (Hooker fil. and Thomson); 
and I possess fine specimens from the United States, Penn¬ 
sylvania, Kentucky (where it grows in fissures of limestone 
rocks, Dr. Short), and Virginia (R. D. Greene , Esq.). Like our 
