176 
LASTRA3A RIGIDA. 
is beaded round with stalked globular glands. Similar 
glands are scattered over the frond’s whole surface, and 
they emitting a rather agreeable odour, have caused it 
sometimes to be called fraqrans, and, consequently, to 
be confounded with L. oreopteris. 
It is almost confined to the limestone mountains of 
the north of England, where it was first noticed as a 
British Fern by the Rev. Mr. Bree. He discovered it 
at Ingleborough, in 1815. Since then it has been found 
atWhornside; at Settle; at Am side Knot, near Silver- 
dale, in Westmoreland; and on White Soars, above 
Ingleborough. A single plant was found near Bath, and 
another at Louth, in Ireland, but in such situations as 
to justify the opinion that they were introductions. 
Mr. W. Reeve tells us that this Fern is a free-growing 
speoies under cultivation, and is a very elegant ornament 
for the well-drained and shady parts of the rockery. It 
being found growing wild generally upon chalky soils, 
and oftentimes upon elevated positions, points out it is 
well adapted by its native habit for planting on artificial 
rockwork. It may be grown, also, successfully in shrub¬ 
beries and wildernesses, where a thorough drainage 
can be procured, and also shade, in which it delights, 
although it will bear exposure, but the beauty of the 
plant is then lost. It will also succeed well under pot- 
culture, and to thrive it should have a well-drained soil, 
composed of turfy peat two parts, and one part sand or 
limestone broken into small pieces, and a free admix¬ 
ture of silver sand; old mortar, broken small, forms a 
very good substitute for the third part. The same com- 
