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Ornamentals: Trees

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

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