234 boet's spleenwort. 



magnitude from the list of diagnostics. For all this, I must 

 acknowledge that I am still unsatisfied as to the distinctness 

 of the two species, and adopt them., first, because dependant on 

 higher authority than my own : and, secondly, because no one 

 on the continent has ventured to call in question the propriety 

 of separating them. 



I have scarcely any practical experience of this fern under 

 cultivation : its natural conditions may perhaps be best imi- 

 tated by covering it with glass, and thus affording it that atmo- 

 spheric moisture which, in the Atlantic islands and in Ireland, 

 tends to produce and mature such hygrophilists as Trichoma- 

 nes speciosum. 



