Dryophanta rydbergiana, n. sp.—Gall: on leaf of Quercus rydbergiana, Ckll. (Torreya, Jan., 1903). solitary, 6 mm. diameter, spherical, faintly shiny, light ferruginous, with a microscopically tessellate surface and a scattered stellate pubescence; base concave, point of attachment small; contains a single large cell; the space between the cell and the exterior filled with spongy tissue, which is light green within and ferruginous outwardly.