_—. ee Se 
| See 
43 
GENTIANA CAMPESTRIS L. :— 
In August 1882 I found, in Braemar, two plants ot this species 
bearing flowers tenanted by small pale yellow larvae of a Cecido- 
myia. Some of the flowers were abnormal in having buds growing 
in the axils of the petals and from the centre of the ovary; but 
the larvae also were present in other buds which differed from the 
“normal condition only in having the parts of the flower slightly 
swollen and fleshy, with the sexual organs ill developed. Larvae 
were numerous inside the ovaries, the seeds in which were quite 
abortive or else ill developed; and they were also present in 
small numbers between the other parts of the flowers. Dr. 
Dickie has described (Zainb. Bot. Soc. Trans. ti., pp. 192-196) 
abnormal flower-buds like the above from near Aberdeen ; but 
he makes no mention of the presence of larvae in those found 
by him. 
PLANTAGO LANCEOLATA L. :— 
a. Galls of Mecinus pyraster Herbst (Sc. Nat. ti., p. 252, and 
iv., ~. 16), oval swellings of the scape near the top, less often of 
the petiole. These weevil-galls are not rare in a good many 
places in the North-east of Scotland. 
6. Galls of one of the Anguzllulide (? Tylenchus sp.), so similar in 
structure to those just to be described on P maritima that it is 
needless to describe them on both plants. They are of larger 
size on P. lanceolata, occasionally almost extending from edge 
to edge of a leaf; and are less markedly different in colour 
from the rest of the leaf, than they are in P. maritima. I have 
found these galls in one or two localities near Aberdeen, from 
May till October ; also at Banchory Ternan on Deeside, and at 
Rescobie in Forfarshire. 
PLANTAGO MARITIMA L. :— 
Galls of Zylenchus (? sp. m.) in the leaves and leaf-stalks, seldom 
in the scapes. Possibly they may be the work of the same species 
as makes the second kind of galls just mentioned on P. /anceolata, 
as the galls are so similar on the two plants. On 2 maritima 
they are conspicuous, as they enlarge the part attacked to as 
much as four times the normal breadth, and usually assume a 
pale yellowish green, less often a red or purple shade. There is 
often marked distortion in the structure of the galled parts. The 
deviations from the healthy state caused by the gall will be best 
understood after a brief sketch of the transverse section of a 
healthy leaf. A normal section shows a very regular arrangement 
of its tissues, viz., the epiderm all round the mesophyll, which is 
