THE BLADDE3 PERNS. ?9 



marginal, than in any of the preceding forms. It is repro- 

 duced from the spores. 



The variety Dickieana is of a more compact habit than 

 the preceding, and grows from four to six inches in height ; 

 the outline almost ovate, terminating in a point ; the pinnse 

 ovate-lanceolate, deflexed, overlapping each other ; the pin- 

 nules decurrent, broad, obtuse, with 

 a few shallow, marginal notches ; the Fl< >- 22 - 



texture very delicate and herbace- 

 ous; and the fructification margi- 

 nal. It is of a deep green. It is a 

 constant variety uiider cultivation, 

 and is reproduced by spores. 



The usual forms of this species 

 occur abundantly in moist moun- 

 tainous districts, and also on walls, 

 but generally in moist rocky situa- 

 tions throughout the United King- 

 dom, Ireland excepted, where it is 

 comparatively rare. The same spe- 

 cies is very widely dispersed in vari- 

 ous parts of the world. The varie- 

 ties are more rare. Cystopteris 

 fragile may be said to have rather a 

 preference to limestone. 



Under cultivation it is one of the 

 most manageable of the smaller sorts, 

 growing freely on rockwork or in 

 pots. Its fronds are produced very 

 early in spring, are often renewed 

 during summer, and continue to 

 grow up in succession until the 

 frosts cut them off. 



ALPINE BLADDER FERN. 



The name of this species is Cys- 

 iopteris regia. Cystopteris alpina is 

 another name for this elegant plant, 

 which has also been called Cyathea 

 regia and Cyatftea incisa, Gystea 

 regia, Polypodium regium, Polypo- 

 dium alpimim, Aspidium regium, 

 and Polypodium trifidum. 



This diminutive but elegant 

 plant is quite a gem. It ha Cyitopterii 



