THE BROAD PRICKLY-TOOTHED BUCKLER FERN. 231 
Leinster.—Wicklow : Newtown, Miss Tarbet ; Powerscourt water- 
fall; valley of Glencullen, R. Barrington; near Upper Lough Bray, 
R. B. Dublin Mountains, J. R. Kinahan ; top of Three Rock 
Mountain, 1400 ft., R. Barrington; Glen near Kingston, R. B. 
Kilkenny. King's. 
Munster.—W aterford; near Clonmel, J. Sibbald. Clare. Limerick. 
Tipperary. 
Channel Isles.—Jersey. Guernsey, C. Jackson. 
Lastrea dilatata is a common and generally dispersed European 
species, occurring from Lapland and Norway to Portugal and Spain, 
the Savoy Alps, Italy, Croatia and Transylvania. In Asia it 
occurs in Kamtschatka, near Petropaulowski, and in Mingrelia; in 
Africa, in the Azores and in Bourbon. In America it occurs at 
Sitka, and at Kodiak in the Russian territory; at Port Mulgrave, 
and in the Rocky Mountains; in New England and Canada. There 
is also in the Hookerian Herbarium a specimen labelled from New 
Zealand. 
This is a plant of easy culture. In almost any kind of soil that 
can be kept moderately moist, and in any situation where it will 
enjoy a moderate amount of shade, it will grow readily; and it is 
really a very handsome plant for rockeries, always moreover easily 
obtainable. Few indeed if any of our large growing species are 
more elegant, its broad and compound fronds being of a rich deep 
green and enduring; they are in fact subevergreen under shelter. 
The best soil for it and its several varieties, is a mixture of turfy 
peat and loam with sand; and they all succeed very well cultivated 
in pots. 
This Fern is very prolific of varieties. The most remarkable 
among them, and those which we consider as being of botanical 
importance, have been already briefly mentioned, but we propose in 
this place to give more complete descriptions of them, and to notice 
their distribution, as well as to enumerate such other forms as seem 
to call for mention in accordance with the plan we have followed in 
other cases. We may, however, observe that while the modifications 

