CATALOGUE OF BRITISH PLANT-GALLS 189 
sometimes distorted in a similar manner. Numerous 
larval burrows within. 
Ceuthorrhynchus pectoralis Schult 391 
Connold, Plant Galls, fig. 66. Houard, No. 2668. 
Coleop- 
tera 
Slight swelling on the lower part of the stem. See 
No. 389. 
PSYLLIOIDES NAPI Koch 392 
Houard, No. 2669. 
Diptera 
Flowers remaining closed, forming a globular gall. See 
No. 390. 
Perrisia cardaminis Winn. 393 
Connold, Plant Galls, fig. 67. Houard, No. 2665. 
Fungi Floral leaves greatly hypertrophied. Stem and flowers 
much distorted and swollen, affected parts snow-white, 
appearing as if polished at the time when ihe conidia are 
forming beneath the epidermis ; upon the rupture of the 
latter the free conidia appear on the surface as a white 
powder. The well-known white rust.’' 
Cystopus candidus L6v. 394 
Syn. Albugo Candida Lev. 394a 
Massee, Textbook PI. Diseases, p. 59. 394^ 
Coleop- 
tera 
Cardamine hirsuta Linn. no. Hairy Bitter Cress. 
I r»egularly subglobose, unilocular, small, fleshy swellings 
on the petioles of the radical leaves. 
Ceuthorrhynchus contractus Marsh 395 
Houard, No. 2657. 
Erophila verna E. Meyer (=Draba verna L ). 109. 
Common Whitlow Grass. 
An ovoid swelling at the base of the stem, containing a 
single white larva. M. E. (Plate VI. 4.) 
Ceuthorrhynchus hirtulus Germar 396 
Connold, Plant Galls, p. 246. Houard, No. 2688. 
Cochlearia armorica Linn. Horse Radish. 
Rounded swelling on the upper part of the root. 
Ceuthorrhynchus pleurostigma Marsh 397 
Houard, No. 2510. 
Hesperis matronalis Linn. Dame’s Violet. 
Seed-pod (siliqua) swollen. 
Ceuthorrhynchus inaffectatus Gyllh. 398 
Houard, No. 2737. 
