tions — a fact which has not hitherto met with the 
attention it deserves. Seeds of iEnothera fruticosa 
have lately been brought from India, which have 
produced a variety very distinct from any hitherto 
seen in this country, notwithstanding it is next 
to certain that the parent plants originated from 
British seeds. The same circumstance has occurred 
with other plants ; hence the conclusion arises that 
a change of character has been effected by the 
change of climate, or the presence of some mineral, 
new to the plant. Mr. Cameron suggests that the 
same cause might have operated on this new Heath, 
and observes “ I may mention having, some years 
ago, found a white variety of Lychnis flos-cuculi, 
growing in a pasture field in Surrey, in a small 
excavated bason, more wet than the rest of the field. 
The flowers in the centre of the bason were pure 
white, but those on its sides gradually passed into 
red as they approached nearer the level of the sur- 
rounding field, where none but red flowers were to 
be seen. My impression was that the earth had 
been removed down to a subsoil containing some 
mineral not found on the surface ; or, that this bason 
had been the receptacle of some mineral water.” 
It is worthy of observation that the Erica Mackay- 
ana is confined to a district of hornblende rock, 
and also, that some of the identified specimens of 
Erica tetralix of this district assume a form different 
from their original type. Mr. Cameron mentions 
a seedling Heath having been found on Moseley 
Common, Warwickshire, which was not distinguish- 
able from Mackayana, but it unfortunately died 
from some accident. 
