47 
structure, is as great as e diversity of situation. Nearly a 
of the plant, are seasonal variations, it will be convenient to 
arrange the following notes according to the different organs of 
the plant on which the galls occur. 
Root galls.—On the smaller roots, during autumn and winter, 
ls w 
is probable that the root galls are common too, though it is only 
on ane oocasions that an opportunity of searching for them 
occur 
Bud Folie. —At the apex of terminal or lateral twigs, in early 
summer, occurs the multicellular gall known as the * 
or * King Charles' apple, ich i 
Biorhiza aptera, Bosc., mentioned in me. rond paragraph. 
The galls are large, often over an inch a spongy and soft 
when fresh, often reddish or yellowish in qu with a harder 
central portion, consisting is any chambers aggregated together, 
each containing a single lar 
The Artichoke-gall iis: E name from its dece ceri ns 
small globe artichoke, the gall — enclosed within 
enlarged apee or Jeat-scales, j 2 tol — long. It teas: curs in 
autumn, and is y Andricus gemmae. ‘The spring form of 
the gall, which is i bility. and occurs on the catkins,-has not been 
— at Kew 
Terminal bu di or young shoots "ree the central cavity 
roe ey above with a thin membrane, and containing an egg- 
shaped inner gall, which is attached to the lotto of the cavity. 
e gall occurs sparingly in June, and is made by Andricus 
inflator, Hartig. 
Terminal or lateral buds transformed into globular galls, about 
1j to 2 lines broad, yellow or red in colour, and projecting from dry 
Error He gall occurs in autumn, and is the autumn form 
of Andricus inflator, irr described above, formerly known as 
Aphilothriz globuli, artig. 
Terminal buds or young shoots, or sometimes the leaves, 
ransformed into a swollen, somewhat twisted body, containing a 
Hides aped inner gall, or occasionally two or dut It occurs 
0 in May : ne, mad ndri 
Andricus collaris, Hartig, has not been observed at Kew. It 
occurs on the buds, and is oval, 1 to e lines long, pale nene or 
red brown with a darker nipple-like ti 
Terminal buds transformed into stalked galls, three to six t lines 
long, with the slender stalk nearly as long as. gall. Occurs 
