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BRITISH GALLS 
Acari 
> > 
Homop- 
tera 
I* 
Fungi 
Homop- 
tera 
Fungi 
brown or purple. Usually contains a single white larva. 
M. E. July to October. 
Atrichosema aceris Kieffer 606 
607 
A Muller, 1869, p. 21. Connold, Plant Galls, fig. 153. 
Swanton, Knowledge, June, 1910. Houard, No. 4030. 
Scattered pustules on upper surface of the leaf. See 
No. 604 and Plate XIII. 11. 
Eriophyes macrochelus Nalepa 608 
Connold, Veg. Galls, pi. 56; Plant Galls, fig. 151. 
Houard, No. 4017. 
Numerous minute pustules on the upper surface of the 
leaf. See No. 603 and Plate XIII. 7. 
Eriophyes macrorrhynchus Nalepa 609 
Connold, Veg. Galls, pi. 57; Plant Galls, fig. 152. 
Houard, No. 4016. 
RHAMNACEAE 
Rhamnus catharticus Linn. 58. Buckthorn. 
Leaf margins rolled upwards, much thickened and 
twisted, often brightly coloured, red or purplish-brown. 
Trichopsylla Walkeri Forster 610 
Connold, Plant Galls, fig. 77. Houard, No. 4069. 
Little shallow depressions on the lower margin of the 
leaf. 
Houard, No. 4068. 
Trioza rhamni Schrank 
611 
Leaves and peduncles greatly distorted, often with very 
large bright yellow swellings. Spores orange-yellow. May 
and June. 
Aecidial stage of Puccinia coronifera Kleb. 612 
Syn. Aecidium eras sum Persoon. 
Plowright, p. 163. 
Rhamnus Frangula Linn. 66. Alder Buckthorn. 
Leaf margins rolled upwards. See No. 610. 
Trichopsylla Walkeri Forster 613 
Houard, No. 4077. 
Leaves and peduncles swollen and distorted. With 
orange-coloured swellings. May and June. 
Aecidial stage of Puccinia CORONATA Corda 614 
Plowright, p. 163. 
