Gymnosporangium

Well, I was looking for one kind of Gymnosporangium rust and found another on this Eastern Redcedar/Juniperus virginiana. Juniper-hawthorn Rust/G. globosum requires both a juniper and Hawthorn species, alternating life stages.

On another species of Juniperus, these Tongues of Flame/G. clavariiforme don’t create a gall but just bust right out of the twigs. Several days previously, these would have looked more jelly-like. They’re the spore launchers. This is another rust that jumps back and forth between junipers and hawthorns.