Rare, on Eucarya hickories; on lower leaf surface, between veins; 5 mm in height, columnar, widest near base, tapering to apex, a small aperture present at apex; matte, hairless, green, turning brown; base of gall truncate, leaf with slight exfoliation around connection forming short, tubular socket, a corre- sponding convexity present on opposite leaf surface; two-chambered, the basal larval chamber about 1/4 length of gall, ovoid, smooth, longitudinally ridged, the apical false chamber also ridged and open or closed apically, the partition between chambers with minute, central perforation. This gall is known from only two specimens, one a figure in Wells (1916).
Carya | floridana, glabra, laciniosa, myristiciformis, ovata, pallida, texana, tomentosa |
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Texture | hairless |
Alignment | erect |
Detachable | yes |
Location | between veins, lower leaf |
Walls | false chamber, thick, thin |