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Ornamentals: Trees

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Image Subject Name Scientific Name Description
5476461 Japanese apple rust Gymnosporangium yamadae Peridial cells
5476460 Japanese apple rust Gymnosporangium yamadae Peridial cells
5476459 Japanese apple rust Gymnosporangium yamadae Aecia with conical peridia
5476457 Japanese apple rust Gymnosporangium yamadae Aecia with conical peridia
5458705 Japanese apple rust Gymnosporangium yamadae Close-up of surface of gall on Juniper.
5458706 Japanese apple rust Gymnosporangium yamadae Close view of the spore producing surface of a gall.
5458081 Japanese apple rust Gymnosporangium yamadae Aecia on the underside of a crabapple leaf.
1949022 cedar-apple rust Gymnosporangium juniperi-virginianae Telia-producing gall (cedar apple) of Gymnosporangium juniperi-virginianae on the alternate host eastern red cedar (Juniperus virginiana).
1949021 cedar-apple rust Gymnosporangium juniperi-virginianae Aecial stage of Gymnosporangium juniperi-virginianae on apple fruit.
5028058 cedar-apple rust Gymnosporangium juniperi-virginianae Telial-stage horns of the cedar-apple rust pathogen.
4823039 cedar-apple rust Gymnosporangium juniperi-virginianae Inactive reddish-brown/dark brown second-year galls. Telia horns will develop during moist conditions in spring and early summer see image 4823038).

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