265 



than the loss of many more beautiful things. Its decora- 

 tive value was very small but as an example of variation it 



took first rank inasmuch as it was the only example of 

 its kind. Centuries may elapse before another such fern 

 is found, but what nature has done once she can do again, 

 and it may be that some even of the present generation 

 may re-discover this extraordinary type in this, or in some 

 other, species. Unfortunately no frond, photogiaph. or 

 drawing of this fern exists but, in order that its memory 

 may not be lost, I have here set down its history in greater 

 detail than it has yet been given. 



F. W. S. 



THE EFFECT OF FROST ON FERNS. 



Much misconception exists in the popular mind as to 

 the effect of severe frost on ferns. With the exception of 

 Asplenium marinum, Ad. capillus- Veneris, and perhaps 

 Trichomanes radicans. the whole of our native ferns (the 

 strong growing and deep rooting species at any rate) derive 

 considerable benefit from spells of severe frost during 

 winter, provided the plants are not in pots. [An important 

 qualification. — Ed .] 



A good old-fashioned winter with frost and snow extend- 

 ing towards the end of April, augurs well for a magnificent 

 display of fern foliage later on. 



The conditions to be dreaded are these periods of com- 

 paratively warm weather which are sometimes sandwiched 

 between periods of severe frost. 



If these mild warm days occur later than February, 

 there is danger of the ferns being excited into premature 

 growth, and they do not obtain that complete lest which 

 l- bo necessary a prelude to the serious business of life. 



