216 



Professor Trail on the 



b 



hairy patches (Brincum), on either surface, though usually 

 below, originally regarded as imperfect fungi ; tubes formed 

 of involute leaf-segments, with or without the growth of 

 hairs ; galled buds {Ccdycoplithora, &c.), often covered with a 

 thick coat of hairs ; folds in leaves or margins closely rolled 

 into narrow tubes (Legnon) ; and other forms for which 

 special names have not been suggested, and that need not 

 be more fully discussed. 



{Erineum iiliacewn, Pers.), 

 {Ceratoneon extensum, Bremi), 

 (Legnon cHsjnim, Bremi), 

 (? Erineum hifrons, Le Pell.), 

 (Ceratoneon vulgare, Bremi), 

 Phytoptus Geranii, Thomas, 



(Ceratoneon attenuatmn, Bremi 



(Erineum Gei, Fries), 



Warty galls of Phytoptus, 



Boiled leaves, 



Hair-growths and curvature of 



Leaf-crumpling (Leynon), 



(GalycophtlioraVeronicte,YiAic\\- 



ner.) 

 (Heliazeus Populi, Kirchner), . 



all on leaves of Tilia jjarvifolia. 



leaf of Tilia ?yrandifolia. 

 leaves of Acer Pseudo-platanus. 

 rolled leaf-segments of Geraniinii 



ganyuineum. 

 leaves of Prunus Padus. 

 Geum urhamnn. 

 Sedum Rhodiola. 

 Galium verum. 

 leaves of Galium horeale. 

 Lonicera Xylosteum. 

 bud-galls of Veronica Chamcedrys, 



jland-gall at base of leaf-blade of 

 Popidus Tremula. 

 (Cephaloneonumhriman, Bremi), leaves of Salix Caprea. 

 (Erineum hetulinum, Sclium.), leaves of Betida alha. 



leaves of Betida alha. 



leaves of Alnus incana. 



leaves of Alnus incana. 



Warty galls, , 

 (Erineum alniyenum, Link), 

 ( Gephaloneon j^U'^i 'datum, 

 Bremi.) 



Nematoidea. 

 (Tylencltus Millefolii, F, Loew), leaves of Achillea Millefolium. 



With a view to render tliis })ap('.r of greater value, I have 

 .sought out previous records about the galls and gall-makers 

 of Norway, but only to find that but little has been put on 

 record concerning the one or the otlier. Indeed, the only 

 works in which I have succeeded in finding information 

 are — 



