362 
ON CROSSES AND 
important, namely, that it requires no label to distinguish 
the offspring, which are as uniform and unlike all others in 
foliage as if they were a separate species; and so in fact they 
are, and, if planted by themselves in a congenial situation 
and climate, would be the parents of a distinct race. This 
cross I call Haylocki. The great complaint against the 
mules raised by the impregnation of the Nepal arboreum, is 
that they all partake of its irritability, and move so early 
that they are very frequently damaged by spring frosts. 
Finding them all as irritable as the male parent, I have lately 
raised from it crosses by R. maximum and others, hoping that 
such may inherit the tardier habits of the hardy male parent, 
which would greatly increase their value. They are as yet but 
two years old, and their constitution has not yet been suffi- 
ciently proved. In the lovely genus Rosa, I believe, little has 
been done except by the hand of accident, and the necessary 
consequences of cultivation and the approximation of species 
in gardens. Much remains to be accomplished, but our 
climate is not very favourable to the seeding of the more 
delicate sorts, and the continental cultivators do not as yet 
take pains to obtain the results that might be expected from 
a judicious combination of the species, when rosa lutea, 
sulphurea, and bicolor shall be brought into union with the 
fragrant, the double, and the ever-blowing individuals of 
other species. The first decided original cross that we know 
was brought by Fraser from America, where it had been 
raised between the musk cluster and the ever-blowing Chi- 
nese, probably by accident; and, having been sold to Mr. 
Noisette, it has been made to bear his name, and, being 
more fertile in France than in this country, it has become 
the parent of an extensive family of beautiful varieties. 
From this plant Mr. Smith raised by impregnation with the 
yellowish Indian rose a variety of some merit, but not a good 
flowerer under general circumstances ; and Rosa ruga is 
understood to have been raised in Italy from the Ayrshire 
rose by the pollen of the Chinese odorata, but the fact is not 
authenticated, and, if I am rightly informed, the great variety 
of cultivated roses, is owing rather to accidental than arti- 
ficial intermixture. It is particularly desirable that those, 
who reside in quarters congenial to the seeding of roses, 
should exert themselves to intermix the qualities of the most 
estimable species. Many have been lately introduced of 
which I know not the origin. The honeysuckles also offer 
