CATALOGUE OF BRITISH PLANT-GALLS 193 
Coleop- 
tera 
Galls resembling those of the preceding. 
Ceuthorrhynchus contractus Marsh 428 
Kirby and Spence, 1828, p. 188. Houard, No. 2607. 
Homop- 
tera 
Floral axis thickened, flowers greenish. See No. 410. 
Aphis brassicae Linn. 429 
Buckton, ii., 34. Houard, No. 2601. 
Nematoda Roots swollen. See No. 411. 
Heterodera Schachtii Schmidt 430 
Connold, Plant Galls, p. 75. 
Capsella Bursa-pastoris Medic. 112. Shepherd’s 
Purse. 
Homop- Leaf margin rolled upwards. See No. 410. 
tera Aphis brassicae Linn. 431 
Buckton, ii., 34. Houard, No. 2739. 
Nematoda Stem swollen and distorted. 
Tylenchus devastatrix Kuhn 432 
Bd. Agric. Leaflet, No. 46. 
Fungi 
Swollen white patches on stem, leaves, etc. See 
No. 394. 
Cystopus candidus Lev. 433 
Massee, Textbook of Plant Diseases, p. 59. 
Lepidium campestre Br. 86. Common Pepperwort. 
Coleop- Spherical tumours at base of stem. See No. 439. 
tera CEUTHORRHYNCHUS PLEUROSTIGMA Marsh 434 
Houard, No. 2492. 
Fungi 
White swollen patches on stem, leaves, etc. See 
No. 394. 
Cystopus candidus Lev. 435 
Massee, Textbook of Plant Diseases, p. 59. 
Lepidium Draba Linn. Whitlow Pepperwort. 
Coleop- Nodular swellings of very variable size on the roots and 
tera stem, containing several larval cavities. 
Ceuthorrhynchus pleurostigma Marsh 436 
Houard, No. 2491. 
Thlaspi arvense Linn. 84. Penny-Cress. 
Elongated spindle-like swellings on the stem and 
branches, containing many cells with a single larva in 
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