SCOPTISH Gar Ls: 
By Pror. JAMES W. H. TRAIL. 
URING the past two seasons I have met with a number of 
galls not previously recorded by myself from Scotland, 
though a few of them have been published as Scottish by Dr. 
Greville (‘‘ Scottish Cryptogamic Flora,” &c.), or by Mr. Cameron. 
Dr. Buchanan White has also, with his usual kindness, sent me 
several that he had found in Perthshire or in Forfarshire. Most 
of the galls described below are the work of Mites (Phytoptus), or 
of Anguiliulide, and are by no means conspicuous ; but a few are 
sufficiently readily seen to prove that even among the larger galls 
in Scotland there are still some remaining to be discovered, even 
in localities that might be supposed to be well wrought. I shall 
be glad of any assistance, however little, in working out the dis- 
tribution of Scottish galls. 
THALICTRUM MINUS, var. MONTANUM, Wallr.—Carpels 
galled by Cecidomyia Thalictri H.Lw., were rather common on the 
_ shore of Loch Rannoch at Kinloch Rannoch in September, 1882- 
_ The carpel becomes swollen to twice or thrice the natural size, and 
becomes ovate or nearly globular. Its colour changes through 
yellowish to brown. In other respects externally it does not differ 
much from a ripe healthy carpel in appearance. On section the 
walls are found to be about the usual thickness of those of a ripe 
carpel; but the seed is absent, and its place is occupied by one’ 
or two orange coloured larvae of the midge, which pupate in the 
ground. Most of the galls in the beginning of September were 
empty. Usually only one carpel in a flower is galled, the rest 
remaining untouched ; but sometimes two or more may be affected 
Mr. Fitch has recorded similar (?) galls on Zh. flexuosum as found 
by Dr. Power in Scotland. (Zut. Monthly Magazine, vol. xviii 
p. 116.) 
j CARDAMINE PRATENSIS L.—The flower-buds are galled 
by Ceeidomyia Cardaminis Winn. They become deformed and 
