Gymnosporangium Rust

Leaf Rusts of Hardwoods and Needle Rusts of Conifers

Cedar - Apple Rust - Gymnosporangium juniperi-virginianae

Cedar - Hawthorn Rust - Gymnosporangium globosum

19191920.jpg (21287 bytes)

Pycnia on top surface of apple and hawthorn leaves.

19191904.jpg (40362 bytes)

Aecia on bottom of leaf.

19191906.jpg (32938 bytes)

Telial horns starting to form on galls produced on juniper.

Telia cedar apple rust

Fully formed telia on juniper.

19191907.jpg (26460 bytes)

Teliospores of Gymnosporangium.

Quince Rust - Gymnosporangium clavipes

Quince rust on hawthorn

Aecia on the fruits of Hawthorn cuased by Quince rust.

Quince rust on juniper

Telia of Quince rust produced on the main stem of juniper.

SEE also Gymnosporangium broom rust on "Broom Rust Web Page"