THE BRITTLE BLADDER FERN 287 
in tlie counties of Antrim, Cork, Down, Galway, Kerry, 
Leitrim, Sligo, and Wicklow. 
Culture. — Given sliade and abundant moisture, tliis 
beautiful little Fern becomes one of tlie most hardy of our 
native Ferns, as well as one of the most vigorous growers. 
In the Fern house, in the Fern case, or in pots, it will thrive 
admirably. If it be planted in pots, they should stand in a 
saucer of water ; but it must be perfectly drained, so that the 
water can percolate freely, and the water in the saucer must 
not be allowed to become stagnant. The soil should consist 
of peat and loam, and leaf-mould in equal proportions, with 
sand equal to about one-fourth of the whole ; and it is desir- 
able and beneficial to this Fern to put several pieces of broken 
limestone in the soil, whether it be planted in the open 
rockery, indoors in pots, or in the Fern house. Being a rock- 
growing Fern, it is also desirable, in planting it, to place the 
caudex — which may be propagated by division — between 
]:>ieces of stone or rock. 
