Dr. T. Bell Salter on some forms of Rubus. 365 
only, and where this is the case it does not appear needful to give 
any description of the character of the species, but only of those 
points in which the variety differs from the normal form. This 
applies to the first six plants ; for the description of the species 
to which these belong I would refer to Babington’s ‘Manual.’ The 
last two forms constitute a species which I have long observed in 
the Isle of Wight; and the ten intermediate ones, which now ap- 
pear grouped as three species, are plants about which the greatest 
confusion has existed, both as to the number of species they really 
constitute—each being by many held to be a species—and also 
as to the naming of them, their names having been transposed 
in almost every supposable change. 
The forms noticed are numbered continuously. 
1. Rubus ideus (l.), var. trifoliatus—Stem polished. Prickles 
few. Leaves ternate. 
Hab. Morton Lane, Isle of Wight. 
This form of Rubus is deserving of notice as a distinct variety. 
In addition to the difference of the leaves, it is remarkable for the 
extreme freedom from prickles and the bright polish of the stem. 
It is mostly interesting from its analogy to the form next to be 
noticed. 
2. Rubus suberectus (And.), var. trifoliatus—Stem polished. 
Prickles very few, small and straight. Panicle lax. Fruit bright 
red. 
Hab. Apse Castle Wood, Isle of Wight. 
A most beautiful form of this variable species, growing abun- 
dantly in the wood above-named, and with extreme luxuriance, 
sometimes attaiming the height of eight or ten feet. The stem is 
almost entirely destitute of prickles and highly polished. It is 
very rarely that the /eaves divide so as to be quinate, but this oc- 
casionally occurs. Were it not that I have been enabled to trace 
a complete series from the occasionally quinate specimens of this 
variety to the ordinary form, it would be almost impossible to be- 
heve that the extremes of this species could possibly belong to 
the same ;—that the Isle of Wight plant with its smooth polished 
stem and ternate flaccid leaves could be of the same species with 
the vastly prickly plant with stiff pmnate leaves which is found 
in the north. There is however almost as much difference in the 
extremes of R. zdeus, and it is from the analogy of the form of 
it above-mentioned to the present one, that I was so much inter- 
ested in meeting with it. 
3, Rubus plicatus(W. and N.), var. carinatus— Prickles uncinate. 
Leaves elliptic-lanceolate, acute at both ends, carinated and 
