Unknown q-macrocarpa-like-a-robustus
The inducer of this gall is unknown or undescribed.
Hosts: Quercus macrocarpa
Detachable: detachable
Color: brown, orange, pink, white, green, black, tan
Texture: bumpy, hairless
Abundance:
Shape: globular, cluster
Season: Fall, Summer
Related:
Alignment: erect, leaning
Walls: thick
Location: lower leaf, leaf midrib, on leaf veins
Form:
Cells: monothalamous
Possible Range:i
Common Name(s):
Synonymy: 
Our ID Notes may contain important tips necessary for distinguishing this gall from similar galls and/or important information about the taxonomic status of this gall inducer.
Gallformers ID Notes
“
Clusters of hairless, slightly bumpy globular galls attached to the lower midrib or occasionally major side veins of Quercus macrocarpa in late summer. Clusters typically contain 3-6 individual galls, each of which is white with a scar or nipple at its apex, often turning black but less consistently so than in Andricus robustus. Older galls may turn pink or orange. The galls are very similar to those formed by Andricus robustus on Quercus stellata but apparently differ in their host, their more nearly spherical shape with less pronounced necks, their white rather than green color early in growth, and their typically greater size and smaller numbers per cluster.
”- Gallformers Contributors: (2024) Gallformers ID Notes©
Further Information:
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See Also:
Unless noted otherwise in the ID Notes, observations of this gall are collected in the Observation Field Gallformers Code with value q-macrocarpa-like-a-robustus on iNaturalist. You can view them here:
