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HYDROLEA SP1NOSA. 
We are anxious to lose no opportunity of impressing upon culturists the advantage 
of ascertaining what exotics we possess that will do in the climate of Britain. There 
are many among those which are ever regarded as stove plants that would compete 
with the most hardy in the summer season in that respect, if they had an opportunity 
of doing so. At the least, the fact of their doing well in the stove, and the possi- 
bility that they may not succeed out of it, should be no obstacle to prevent experi- 
ments having this object in view being tried. 
Hydrolea spinosa increases with great facility by cuttings, and also seeds abund- 
antly, but how far the latter are useful in producing plants, we have not had an 
opportunity of ascertaining ; their formation occurs to such an extent under some 
circumstances as to require the repeated removal of the vessels which contain them, 
to enable the plants to continue vigorous. Our drawing was taken in summer, at 
Messrs. Rollisson's. 
The generic name is one of Linnaeus' founding; and is derived from hudor, 
water, and elaia, oil, alluding to the situation and nature of the plant. 
