- Camera: OLYMPUS IMAGING CORP.
- Camera model: E-520
- Exposure time: 1/1
- Aperture: f/22.0
- ISO: 200
Red thorn-like projections growing on the ventral surface of a leaf from a hardwood tree in North Carolina (5 years and 746 days ago)
photonut says:
Wow just love the simplicity in this,and the detail is great,green lines in the reeds show up really well
These red thorns are galls.
The galls that develop on the leaves are formed by the plant in reaction to the attacks of parasites: the mites.
Mites produce a proliferation of fusiform prominences on the upper surface of the leaves; These green galls turn red at first. In autumn, the mites leave the galls to settle on the branches, under the bark or at the base of the buds where they spend the winter.
Howdie stranger!
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