2l6 



BRITISH GALLS 



brown or purple. Usually contains a single white larva. 

 M, E. July to October. 



Atrichosema aceris KiefFer 606 



607 

 A Muller, 1869, p. 21. Cotmold, Plant Galls, fig. 153. 

 Swanton, Knowledge, June, 1910. Houard, No. 4030. 



Acari 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. 



i> 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. 



Homop- 

 tera 



Fungi 



Homop- 



tera 



Fungi 



BHAMNACEAE 



Bhamnns catharticus Linn. 58. Buckthorn. 

 Leaf margins rolled upwards, much thickened and 

 twisted, often bri^jhtly coloured, red or purplish-brown. 



Trichopsylla Walkeri Forster 610 

 Connold, Plant Galls, fig. ^^. Houard, No. 4069^ 



Little shallow depressions on the lower margin of the 

 leaf. 



Trioza rhamni Schrank 611 

 Houard, No. 4068. 



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. Aeddtum crassum Persoon. 



Plowright, p. 163. 



Bhanmus Frangula Linn. 66. Alder Buckthorn. 

 Leaf margins rolled upwards. See No. 610. 



Trichopsylla Walkeri Forster 613 

 Hsaard, 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. 



