Falconer : Plant Gall Foray at Leeds. 407 



DIP. Macrodiplnsis dryobia ¥ . Low . Near the Upper Lake, Round- 

 hay Park and Adel Moor. 

 Contariuia qiierciua Rubs. One tree in Roundhay Park, 

 apparently the remains of this gaU. Previously recorded from 

 the Leeds district. 

 HO>L Asterodiaspis qiiercicola Bche. By the top path of the Gorge, 

 Roundhay Park, on the young twigs of Q. pedunculata ; 

 little round pits, irregularly disposed, each surrounded by a 

 slightly raised rim of bark and closed by a thin circular orange 

 brown membrane, at fir.st easily detachable ; sometimes ac- 

 companied by slight local discoloration of the twig. I had 

 previously met with it in a Huddersfield locality. 

 Beech. 

 DIP. Hartigiola annitlipes Htg. Roundhay Park, King Wood Lane 

 and Adel Moor. 



Nettle. 

 DIP. Perrisia urticae Perr. Throughout the route. 

 HOM. Trioza urticae Linn. King Wood Lane. 



Orache. 

 HOM. Aphis atriplicis Linn. On A. patiila. King Wood Lane.- 

 Red Campion. 

 DIP. Contai'inia steiiii Karsch. By the stream side, near Adel Bog. 



Creeping Buttercup. 

 FUN. Urocystis anemones Pers. Near the Upper Lake, and in the 

 Gorge, Roundhay Park. 



Coltsfoot. 

 FUN. Puccinia poaritnil:^ie\sen . Nearthe Upper Lake, Roundhay Park. 



Meadow Sweet. 

 DIP. Perrisia iilniariae Brini. In wet places, Roundhay Park and 

 Adel Moor. 

 P. engstfeldii Rubs. In the Gorge, Roundhay Park. 

 Bramble. 

 DIP. P. plicatrix H. Low. King Wood Lane and Adel Moor. 

 Tormentil. 

 HYM. Xestophanes brevitarsus Thoms. By the stream side at Adel 

 Bog, in some quantity. 



Wild Rose. 

 Rhodites eglanteriae Htg. King \\'ood Lane and Adel Moor ; 

 plentiful where observed. 

 DIP. Perrisia rosarum Hdy. Adel Moor. 



Mountain Ash. 

 DIP. Contariuia sorbi Kieff. Several examples on one tree by the 

 upper path of the gorge. 



Hawthorn. 

 AC. Eriophyes goiiiothorax Nal. Beside Adel Bog. 

 DIP. Perrisia crataegi Winn. Throughout the route. 



Gorse. 

 DIP. Asphondylia iilicis Verrall. Adel Moor, in one spot, Mr. W. 

 H. Burrell, and previously known to him. 



Angelica. 

 DIP. Kiefferia pimpiuellaeF .how . Near the L'pper Lake, Roundhay 

 Park. 



Heath Bedstraw. 

 AC. Eriophyes gain Karp. King Wood Lane, plentiful. 



Elder. 

 AC. Epitrimeriis trilobits Nal. The Ciorge, Roundhay Park. 



1921 Dec. 1 



