A fungus that thrives in a moist environment nearly killed all American Chestnut trees in the early part of the 20th century. This discovery of a grouping of trees near Warm Springs Georgia give scientists the hope of pollinating new heartier trees.

"The chestnut foundation may use pollen from the trees in a breeding program aimed at restoring the population with blight-resistant trees."

Nearly Extinct American Chestnut Trees Found - Live Science

The Chestnut Foundation - Link