TRICHOMANES. 
193 
broader form. The name Andrewsii is given to it in 
compKment to W. Andrews, Esq., of Dublin, by whom it 
was first brought into notice. 
The Sister Isle now claims, so far as the British Isles 
are concerned, sole parentage of this lovely, half-trans- 
parent species ; there, amidst dripping rocks, it thrives 
with a degree of luxuriance which charms every one who 
has seen it creeping over their shelving ledges. It is said 
to have been formerly found* in Yorkshire. The same 
species is widely distributed in the warmer parts of the 
world. 
The rarity and elegance of this plant make it a favourite 
species for cultivation. The conditions of success are, a 
close atmosphere, shade, moderate warmth, constant but 
not stagnant moisture, and a porous surface to which the 
roots may cling. 
Among the many names which have been applied to this 
plant, the following are the most likely to occur in English 
books : — Trichomanes speciosum, Trichomanes hremsetum, 
Trichomanes alatum, and Hymenophyllum alatum. 
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