ig2 



BRITISH GALLS 



Hyce- 

 tozoa 



Coleop- 

 tera 



Diptera 



Myce- 

 to2oa 



Coleop- 



tera 



Diptera 



Homop- 

 tera 



Root swollen. See Na 381. 



Plasmodiophora brassicae Wor. 417 

 Coiinold, Plant Galls, fig. 300. 



Brassica Butabaga D. C. Swedish Turnip or Swede. 

 Root swollen. See No. 402. 



Ceuthorrhynchus pleurostigma Marsh 418 

 Connold, Veg. Galls, pis. 9, 10 ; Plant Galls, fig. 298. 



Root swollen. See No. 409. 



Phorbia brassicae Bouchd 419 



Seed-pods swollen. See No. 415. 



Dasyneura brassicae Winn. 420 



Roots swollen. See No. 381. 



Plasmodiophora brassicae Wor. 421 

 Massee, Textbook of Plant Diseases, p. 334. 



Brassica rapa Linn. Common I'urnip. 

 Hemispherical galls near the top of the root. See 

 No. 402. 



Ceuthorrhynchus pleurostigma Marsh 422 

 Houard, No. 2586. 



Root swollen. See No, 409. 



Phorbia brassicae Bouche 423 

 Ormerod, p. 25. 



Leaf puckered and swollen. See No. 410. 



Aphis brassicae Linn. 424 

 Houard, No. 2589. 



Nematoda Root& swollen. See No. 411. 



Heterodera schachtii Schmidt 425 

 Houard, No. 2587. 



Brassica arrensis O. Kuntze {sinapistrum Boiss). 

 Charlock. 

 Cktleop- Solitary, gregarious or coalescent swellings, each about 

 tera the size of a pea near the top of the root, just below the 

 ground, with a single larva in each. M. E. 



Ceuthorrhynchus assimilis Payk 426 

 Connold, Veg. GaU.s, pi. 11; Plant Galls, fig. 87. 

 Houard, No. 2605. 



Galls resembling those of the preceding. 



Ceuthorrhynchus pleurostigma Marsh 427 

 Houard, No. 2606. 



