
276 THE BRITISH FERNS. 
fronded species allied to, but distinct from C. montana, the C. 
sudetica of Braun and Milde, occurs in Silesia. 
This plant has often been found difficult to cultivate, probably 
on account of the slight information which was for some time to be 
obtained by cultivators as to the peculiarities of its native habitats. 
Now, however, that it is known that the long creeping stems 
thread their way on the ledges of dripping rocks, among beds of 
sphagnum, less difficulty will be experienced. These natural con- 
ditions suggest the employment of a.very open medium for the 
roots, such as light turfy peat and sphagnum intermixed with 
coarse sand and small fragments of charcoal or freestone. A con- 
stant and abundant supply of moisture, so regulated as not to be- 
come stagnant, is also requisite. If grown in pots, those of broad 
shallow form are evidently preferable, and even shallow pans of con- 
venient size may be preferred. These conditions being fulfilled, the 
plant is found to grow with facility ; but it is more remarkable on 
account of its rarity, than for its beauty. The creeping caudices 
afford every facility for propagation, when they become established 
and vigorous. In plantmg, they should be arranged horizontally on 
a good layer of the compost, and covered with about an inch thick 
of the same material. In favourable localities, it grows freely in the 
open air. 

