50 
The silk-button gall, produced by Neuroterus pumiemetis 
Oliv., is alas common on the undersides of the leaves in autumn 
The small globular gall on the nerves of the leaf, produced " 
Andricus ostreus, Giraud, is occasionally found, but is not 
common. 
a-shaped galls, produced by Dryophanta jerang Hartig, 
are Sindano found on the under surfaces of the 
The marble gall, peach 2 Ar ira Kollari, inis is almost 
as common as on Q. p 
Lastly, the common igi gall, the summer form of the 
gall produced by Biorhiza aptera, Bosc., is occasionally foun 
The autumn and winter form, which occurs on the roots, has not 
been searched for. 
Quercus lanuginosa, Thuill., more commonly known by its later 
name of Q. pubescens, Willd., is nearly allied to the preceding, but 
differs in having the leaves hairy beneath. Itisa native of ATUM 
and Western Asia. Four galls have been found on it at Kew 
The currant e produced by Neuroterus baccarum, = and 
its autumn form, the common spangle gall, may generally be 
found in their lide season 
EM 1 partis gall, SESE by Cynips Kollari, Hartig, is fairly 
co 
ee vul the well-known oak-apple gall, the summer gall of 
— aptera, Bosc., is often common. The autumn and 
winter form, which occurs on the roots, has not been searched 
for. 
Quercus Toza, Bosc. A native of South-western Europe, having 
the leaves very pubescent beneath, in which respect it much 
ci 
Both the currant gall, produced by Newroterus RS L., 
and its autumnal form, the common spangle gall, are commo 
met with, 
The marble gall, produced by Cynips Kollari, Hartig, is also 
abundant, Trgi ciently so in the case of some young trees to injure 
the bra 
Suse RE. Kit. (Q. Farnetto, — es South European 
species, allied to Q. sessiliflora and Q. lanug 
"P 
common spangle gall, made by Nard terus a n L 
utumn, 
Th 
occurs commonly on the undersides of the leaves during a 
but I have not seen the spring form, the currant gall. 
Quercus lusitanica, Lam. A widely-diffused South European 
oak, from PENR to Asia Minor. Four galls have been 
found on it at Kew 
The currant gall, produced by Neuroterus baccarum, L., occurs 
rarely, but the autumnal form, the common spangle gall, is often 
quite common. 
