Dr. T. Bell Salter on some forms of Rubus. 371 
In all its forms this is a most beautiful plant. It is one of 
very elegant growth, while the lively green of the foliage, which 
is veined with purple, and the bright red of the almost moss-like 
clothing of glands, add much to its beauty of appearance. The 
forms marked . and +. are those published as distinct species, in 
the account of “Three days’ botanizing at Selborne,” published 
in the ‘ Phytologist’*. The discovery of the form @. in the Isle 
of Wight this year, and the opportunity of seeing the forms a. 
and y. growing together in St. John’s Garden, have since enabled 
me to become better acquainted with these plants. These two 
last-named forms, now they are growing in the same situation, 
have become considerably approximated, and I cannot longer do 
otherwise than consider them as varieties of the same species, 
while @, which is the least glandulose, is in all other points the 
connecting link. The distinctions made in the ‘ Phytologist’ are 
still applicable to these as varieties; I would add, however, that 
the 8. of Selborne, having grown in the shade, was, as I then sup- 
posed, deficient in vestiture. In all the varieties the leaves are 
sometimes quinato-pedate—more often in f. than the other forms, 
but in this too it is the exception. The calya is variable in all 
the forms, both in respect to the amount of foliaceous appendix, 
and also as to its direction, which is reflected or erecto-patent in 
various degrees. 
The remaining two forms are those which constitute the spe- 
cles appearing now for the first time as British. 
17. RubusWahlbergii (Arrhenius).—Stem arched, round. Prickles 
numerous, with thick bases, very unequal, hairy. Hairs on the 
stem and glands very few. Leaves quinato-digitate. Leaflets 
subrotund, cordate acuminate, pale green beneath. Panicle 
branched, leafy, tomentose and prickly. Prickles of the panicle 
numerous, very strong and decurved. Calyzx broadly ovate, to- 
mentose and glandular, patent in fruit. Fruit of few large 
grains. 
Hab. Eastern parts of the Isle of Wight in hedges. 
Syn. R. Wahlbergu (Arrhenius), Monogr. Rub. Suec. p. 43. 
18. 8. frustratus.—Stem suberect. 
Hab. St. Helens and Bembridge, Isle of Wight. 
This is a very remarkable plant, which has attracted my notice 
for many years as one of very peculiar appearance. I had thought 
it an undescribed one, until Mr. Babington pointed out to me 
the description of Arrhenius in his excellent ‘ Monograph’ under 
* Vol. ii. pp. 183-137. 
