CATALOGUE OF BRITISH PLANT-GALLS 239 



VALERIANACEAE 



Valeriana dioica Linn. 73. Small Marsh Valerian. 

 Fungi 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. iii. Great Valerian. 

 Diptera Leaves crumpled, swollen, twisted, and discoloured, 

 with a white larva in the folds. M. £. 



DIPLOSIS sp. 783 

 Trail, 1878. Houard, No. 5422. 



Fungi Thickened spots on the leaves and stem. See No. 782. 



Uromyces Valerianae Schum. 784 

 Plowright, p. 128. 



Eentranthns ruber D. C. Red Valerian. 

 Homop- Flowers and leaves deformed. Flowers hypertrophied, 

 tera 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 

 Ifouard, Nos. 5431, S433- 786 



Valerianella carinata 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-frmted Corn- 

 salad. 



Flowers deformed. See No. 787. 

 " Trioza centranthi Vallot 788 



Connold, Plant Galls, fig. 94 (without name). Swanton, 

 Knowledge, June, 191a Houard, No. 5397. 



