Puccinia coronata
The inducer of this gall is unknown or undescribed.
Family: Pucciniaceae | Genus: Puccinia
Hosts: Frangula alnus / Rhamnus cathartica
Detachable: integral
Color: orange
Texture: hairless
Abundance: abundant
Shape:
Season: Spring, Summer
Related:
Alignment: integral
Walls: thick
Location: petiole, upper leaf, lower leaf, leaf midrib, on leaf veins, between leaf veins, stem
Form: rust
Cells: not applicable
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.
Plant Parasites of Europe
“
Puccinia coronata
Corda, 1837
barley crown rust
on Frangula, Rhamnus
GALL
spermogonia
SPERMOGONIA, AECIA
Rhamnaceae, oligophagous
Frangula azorica; Frangula alnus; Rhamnus alaternus, alpina, cathartica, crenulata, lycioides subsp. graeca, pumila, saxatilis. [Note: Host list drawn from European plants, but the rust, a commercially destructive one, is widespread in N. America too.]
[click below for photos]
”- Willem N. Ellis: (2021) Plant Parasites of Europe©
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