16 
specimens are sent by Colonel Drummond Hay, is, I believe, about 
three miles below Perth Bridge. The plant is certainly well natu- 
ralized on the banks of the Tay, if it be not native. Dr. Hooker, in 
the ‘ Student’s Flora,’ admits it as a native, on the faith of the Newark 
station, where, however, it appears to be confined to a single patch. 
Allium paradoxum , Don. “ Benny Crag, Linlithgowshire. In very 
large quantity, and has spread very much within the last few years.” — 
A. Craig Christie. 
Maianthemum bifolium, DC. “Wood, Linlithgowshire. Probably 
introduced, but if so it must have been a long time ago, as it is well 
established, and in quantity.” — A. Craig Christie. 
Butomus umbellatus, Linn. “ Abundant in a tidal marsh on the 
Tay, about four miles below Perth.” — John Sim. Mr. Sim states 
that it was discovered in this station in 1869, by Colonel Drummond 
Hay. In the April number of the ‘Scottish Naturalist,’ p. 59, Dr. 
Buchanan White suggests that it is “ possibly a colony from Loch 
Cluny, where the Butomus occurs as an introduced plant.” 
Potamogeton nitens, Weber. A specimen sent by Dr. Roy adhering 
to living plants of Carex JPutsoni, from the river Don, Aberdeen- 
shire. 
Juncus biglumis, Linn. “Isle of Skye, Inverness-shire.” — M. A. 
Lawson. Professor Lawson is the first botanist who has found this 
plant in the west of Scotland. 
Scirpus uniglumis. Link. “ Sandhills near Deal, Kent.” — J. F. 
Duthie. New to province 3. 
S. parvulus, Rom. and Schultes. “Near Studland, Dorset.” — J. 
C. Mansel (Journ. of Bot. viii. p. 290). Mr. H. C. Watson 
sends some specimens collected by Mr. Mansel in this station. 
Carex armaria, Linn. “ Sandy ground near Frensham, Surrey.” 
— H. C. Watson. These inland specimens are quite similar to the 
maritime ones, and show no tendency to become C. disticha, Huds., 
which Mr. Bentham asserts to be merely “ an inland variety of C. are- 
naria.” 
C. aquatilis, Wahl.?, var. Watsoni. “River Don, Aberdeen.” — 
J. Roy. Dr. Roy has been good enough to send living specimens of 
the Carex supposed to be C. acuta, which grows in the river Don, near 
Aberdeen. As I expected, it proves to be C. Watsoni. The leaves 
are narrower and much more glaucous than in the alpine form of C. 
