CATALOGUE OF BRITISH PLANT-GALLS 133 
Acari 
Fungi 
0 
■ 
Ilomop- 
tera 
terminates in a point, whereas the pseudo-cone is nearly 
globular. Its colour also, instead of being green, is 
reddish ; but it exhibits the tiled scales of the fruit cone ” 
(Rennie). “ Gaine des aiguilles d^formd et dlargie en 
forme de coupe ” (Houard). 
Adelges pini Ratz. 22 
Syn. Aphis pini Linn. 
Rennie, Insect Architecture, p. 348 (1857). Houard, 
No. 78. Buckton does not allude to this gall in “ British 
Aphides.” 
Rounded nodular swelling about the size of a nut in 
the bark of a branch. 
Eriophyes pini Nalepa 23 
Connold, Plant Galls, p. 245. Houard, No. 74. 
Fusiform swellings in the young branches. Aecidio- 
spores orange, contained in whitish sacs. May and June. 
The uredospores and teleutospores occur on various 
species of Senecio. 
Aecidial stage of COLEOSPORIUM SENECIONIS Persoon 24 
Syn. Peridermium pini Cher., P. acicolum Link. 
Plowright, p. 248. 
Dense mass of twiggy outgrowths usually at the end of 
a branch, forming a “ witch’s broom.” Often attaining 
large dimensions ; persisting for many years. 
2 5 
Swanton, Naturalist’s Journal, February, 1903. 
Picea excelsa Link ( Abies excelsa D.C.). Common 
Spruce. 
Gall resembling a pineapple in miniature, about 25 mm. 
long, formed by the fusing together of the greatly swollen 
basal parts of the lower needles of a bud. The margins 
of the cavities between them are always hairy, and tinted 
red or brown. The shoot usually grows beyond the gall, 
which does not completely surround the branch. Aphis 
dingy green, seated at the base of the bud, eggs light yellow. 
The gall opens and the alatae (non-migratory) appear at 
the end of July. 
Chermes abietis Kalt. 26 
Syn. Adelges abietis Kalt. 
Connold, Veg. Galls, pi. 34. Burdon, Journ. Econ. 
Biol,, 1908, vol. ii., p. 125. Houard, No. 101. 
Gall similar to that of A. abietis, but larger, 25 to 30 mm. 
long. Hairs around the openings purple or red, generally 
more brightly coloured than in A. abietis. Shoot usually 
grows beyond the gall. Aphis dark or light green, seated 
