278 HARDY FERNS. 



are more deeply notched or toothed. Decidedly a rock Fern. 

 Increased by division. 



A. MARINUM (Sea-Fern). So named because it is found 

 in the clefts of rocks on the seashores of Britain, We 

 described this as a greenhouse Fern; but where the culti- 

 vator resides near the sea it may be cultivated in the open 

 air. 



A. MICHAUXI (Michaux's). A JN"orth- American Fern, but 

 perfectly hardy. It loses its fronds in winter, being what is 

 termed deciduous. It is a tall-growing Fern, reaching 2 to 

 2| feet high. The whole frond forming a broad, lance-like 

 shape, and many-times-divided ; pinna3 flat and widely apart, 

 and deeply-cut at the edges. Increases readily by dividing 

 the creeping rhizome. We may as well just mention here 

 that all hardy Ferns that will increase by division should 

 have that operation performed just before they begin to grow. 

 If divided after the fronds have made some progress the young 

 fronds are almost sure to perish. There is a variety with 

 purple stems. 



A. EUTA-MUEARIA (Wall-Eue). In some parts of England 

 this pretty Fern clothes old walls with its dark green tufts of 

 fronds. Fronds bipinnate, only a few inches high ; pinnae 

 roundish, something like the leaves of Hue : hence its specific 

 name. To grow this pretty Fern well, mix some old lime 

 amongst the soil, and plant it on the top of a pyramid of small 

 stones or broken bricks, or place it in the crevices of rock- 

 work. Increased readily by division. 



A. SEPTENTEIONALE (Northern). This very neat Fern 

 formerly grew plentifully in the crevices of the rocks on the 

 mountain named Arthur's Seat, near Edinburgh ; but ruthless 

 collectors have nearly stripped that locality. The last time we 

 were in Scotland, we climbed to the top of that mountain, but 

 could not find a single plant. Fronds bipartite, or twice- 

 parted, three-toothed at the extremity. Spore-masses long, 

 covering the entire under surface of the fronds. This truly 



