Aecial spore horns of Gymnosporangium sp. on Amelanchier arborea

Rust Never Sleeps

Nature is often savagely beautiful, as when a leopard stalks a zebra. In the contest between fungi and plants, there are often such beautiful but savage moments. One of the showiest examples takes place in early summer, when spores burst out of cedar trees and soon attack apples, quinces, and serviceberries. The players here are […]