CATALOGUE OF BRITISH PLANT-GALLS 239 
Fungi 
Diptera 
Fungi 
Homop- 
tera 
> > 
VALERIANACEAE 
Valeriana dioica Linn. 73. Small Marsh Valerian. 
Thickened spots on the leaves and stems bearing the 
sori, with orange-yellow aecidiospores. May and June. 
Aecidial stage of Uromyces VALERIANAE Schum. 782 
Syn. Aecidium valerianacearum Duby. 
Plowright, p. 128. 
Valeriana sambucifolia Mikan. 111. Great Valerian. 
Leaves crumpled, swollen, twisted, and discoloured, 
with a white larva in the folds. M. E. 
Diplosis sp. 783 
Trail, 1878. Houard, No. 5422. 
Thickened spots on the leaves and stem. See No. 782. 
Uromyces Valerianae Schum. 784 
Plowright, p. 128. 
Kentranthus ruber D. C. Red Valerian. 
Flowers and leaves deformed. Flowers hypertrophied, 
greenish; calyx swollen, toothed, or irregularly lobed at 
the margin ; tube of the corolla very short and very thick, 
with enlarged greenish lobes, sometimes bent and vari¬ 
ously contorted. Leaves revolute, making a large sub- 
fusiform gall of a pale green or purplish colour. Sometimes 
there are swellings on the superior surface of the leaf and 
the midrib. The margin is always swollen, and numerous 
papillae are developed on the surface of the gall. 
Trioza centranthi Vallot 785 
Houard, Nos. 5431, 5433. 786 
Valerianellacarinata Lois. 16. Carinated Corn-salad. 
Flowers deformed. Corolla short, swollen, greenish ; 
stamens atrophied; bracts and leaves contorted. When 
numerous adjacent flowers are attacked they form a 
cerebriform pale yellowish-green mass. Lateral prolifera¬ 
tion also occasionally occurs. 
Trioza centranthi Vallot 787 
Houard, No. 5398. 
Valerianella dentata Poll. 82. Narrow-fruited Corn- 
salad. 
Flowers deformed. See No. 787. 
Trioza centranthi Vallot 788 
Connold, Plant Galls, fig. 94 (without name). Swanton, 
Knowledge, June, 1910. Houard, No. 5397. 
