Gymnosporangium sabinae (on Pyrus)
The inducer of this gall is unknown or undescribed.
Family: Pucciniaceae | Genus: Gymnosporangium
Hosts: Pyrus calleryana / Pyrus communis
Detachable: integral
Color: orange, red
Texture: hairless
Abundance:
Shape:
Season: Summer
Related:
Alignment: integral
Walls:
Location: upper leaf, lower leaf, between leaf veins
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
“
Gymnosporangium sabinae (Dickson) Winter, 1884
on Pyrus</>
GALL
in spring epiphyllous pustular spermogonia. Later large orange coloured hypophyllous gallings develop, with up to 2 cm high aecia, opening by a number of lateral slits.
SPERMOGONIA, AECIA on
Rosaceae, monophagous
Pyrus betulifolia, calleryana, communis & subsp. pyraster, elaeagrifolia, nivalis, orientalis, pashia, pyrifolia, regelii, salicifolia, spinosa, syriaca.
NOTES
On pear very common, striking, and damaging.
- Willem N. Ellis: (2021) Plant Parasites of Europe©
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