CYSTOPTERIS 139 



Scotland about 1903 on Corrie Clanmor by Mr. William Young, of 

 Kircaldy; previously, its British origin was doubtful, as it is 

 properly a native of Madeira, but this find removes all doubt 

 whatever. Under glass it is quite evergreen. 



CYSTOPTERIS MONTANA (The Mountain Bladder Fern) 



(Plate XII) 



This species (Fig. 141) is very distinct both in form of frond 

 and mode of growth from the other species described, resembling 

 the Oak Fern somewhat in the ^ 

 tripartate form of its triangular ^ 

 fronds, and in the possession of 

 a similar string -like travelling 

 rootstock instead of a compact 

 creeping one. It is by far the 

 best adapted for cultivation, 

 thriving in wide pots or shallow 



pans if treated similarly to the ™ a mo „tana (pinna), 



deciduous Polypodies with open, 

 leafy sandy soil, plus some broken porous rock and good drainage. 

 Dark green and perfectly deciduous, dying down early in Septem- 

 ber and rising at end of March. It has, we believe, only been 

 found in Scotland, but there it has been discovered in several 

 places. No varieties. 



CYSTOPTERIS REGIA (ALPINA) (The Alpine 

 Bladder Fern) 



(Plate XIII) 



A colony of this Fern (Fig. 142) was found early last century on 



a wall at Low Leyton in Essex, but we very much doubt if it still 



!„ exists as a wild plant in this country, and 



■S^§MfiMM$& ma Y be regarded rather as a foreign Fern 



fe' than as a real native. The culture, if it 



were required, would be the same as for the 



Fig. 142. C. rcgia other members of the family. The fronds 



(pinnoe). are nearly thrice divided, but from the 



descriptions available it does, or rather did not, differ very 



markedly from C. fragilis. 



GYMNOGRAMMA LEPTOPHYLLA (The Slender-leaved 



Gymnogram) 



(Plate III) 



This little Fern has only been found in Jersey, as it is a native of 

 warmer climes than ours, and is rather an exotic than a British Fern 



