1900-1901. | Fern Varieties. 207 
of Athyrium filix-foemina named denticulatum, having, as its 
name implies, long sharp teeth at the end of each pinnule. 
Here is what seems to be an allied variety, named uncum, but 
with shorter, claw-shaped teeth. Both varieties are small, 
but they differ in this—uncum is of normal outline, whereas 
denticulatum is very broad in the middle compared with its 
length, and narrows upwards very abruptly to the point, with 
a concave curve. Both were found near Kilmalcolm in Ren- 
frewshire. In the same district the larger forms of Athyrium 
grow in profusion, and in great variety of form in the way 
that the pinnules are divided and subdivided,—from the normal 
bipinnate form, through tripinnatum and. decompositum, to 
Arranense, a large lax variety, with fronds eighteen inches or 
more across, and each pinna resembling a complete miniature 
frond, narrowing downwards from the middle to the rachis. 
Var. rheeticum was also frequent. In it the edges of the 
pinnules are recurved, giving them a curious narrow or shrivelled 
appearance. Tripinnatum and rheeticum are frequent over the 
country, and so is a red-stalked variety similar to one in the 
Botanic Garden from Killarney. 
Lastrea filix-mas, var. paleacea-crispa, is frequent. It is a 
large-growing variety, distinguished from the normal type by 
its very robust appearance, upright habit, dark-green and 
thick leathery foliage, the pinne and pinnules being crowded 
and crisped or waved. Of Lastrea filix-mas the vars. incisa 
and Borreri are frequent, and producta is quite common. In 
Borreri the chief character is the large lobe at the base of 
each pinnule, which is narrow in the upper part. In incisa 
the pinnules are narrow and distant. Producta is a very large 
variety, immensely developed in all its parts; pinne and 
pinnules not distant, often close; pinnules with large teeth, 
and the ones next the rachis often much longer than the others. 
To those who may not have given much study to Fern 
varieties, the foregoing notes and the specimens submitted 
may help to show that, even in our cold northern clime, there 
is a wide field open in this department. Of course most of 
the extraordinary varieties and monstrosities are confined to 
the southern and warmer parts of our island. But Scotland 
can claim to have produced at least one wonderful and very 
_ beautiful variety, the var. Victorie of Athyrium filix-foemina, 
