black spot of elm
Stegophora ulmea (Fr.) Syd. & P. Syd.

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Image Descriptor Description
5411358 Symptoms leaf spots
5368937 Symptoms Leaves with small, raised black spots with a fine area of white tissue surrounding them, found mostly between the major veins.
5368938 Sign Close-up of infected spots with blister-like, brown spore-producing bodies ("acervuli") within the spots.
5368939 Sign Close-up of infected spots with blister-like, brown spore-producing bodies ("acervuli") within the spots.
5368940 Sign Close-up of one infected spot with blister-like, brown spore-producing bodies ("acervuli") seen under dark-field observation.

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