226 BRITISH GALLS 



Acarl Flowers and fruit greatly swollen and deformed, forming 



conglomerations resembling a cauliflower ; they are soft 

 and yellowish at first, becoming brown and hard at 

 maturity. 



Eriophyes fraxini Karp. 683 

 Syn. Phytoptus fraxini Nalepa. 



Masters, 1869, p. 421, fig. 202. Connold, Plant Galls, 

 fig. 35. Diplosis fraxinella Meade is an inquiline. 

 Houard, No. 4636. 



„ Leaf margin very tightly rolled inwards, the interior 



covered with abnormal hairs. Colour green or yellowish. 



Phyllocoptes fraxini Nalepa 684 



Houard, No. 4642. 



Connold (Veg. Galls, pi. 74 ; Plant Galls, fig. 34) 

 delineates galls which he ascribes to this mite, but which, 

 judging from his description, are the j/^w/^g* state of the 

 galls caused by the psyllid Psyllopsis fraxini. He makes 

 no allusion to the hairs; the purple streaks are very 

 characteristic of the psyllid galls. 



? Branches swollen, then fissured. A thickened irregular 



margin of living bark forms around the wound, giving 

 rise to the familiar cankered appearance. 



68s 

 Connold, Plant Galls, fig. 32. Massee, Textbook of 

 Plant Diseases, p. 127. At one time attributed to 

 Nectria ditissima, but probably results from the presence 

 of aphides. 



Idgustrum vulgare Linn. 83. Common Privet 

 Homop- Margins of the upper leaves rolled inwards and dis- 

 tera coloured ; the entire leaf is sometimes bent and twisted. 

 Aphis bright yellow or greenish, with long cornicles tipped 

 with black. 



Rhopalosiphum ligustri Kalt. 686 

 Buckton, ii., 13. Houard, No. 4682. 



GENTIANAORAE 



Menyanthes trifoliata Linn. 1 10. Buckbean. 

 Fungi Thickened purplish patches on the leaves, more or less 



round, sometimes confluent ; spores brownish. 



Protomyces menyanthis De Bary 687 

 Plowright, p, 301. 



