In 2015, the scientists identified it as a fungus called Exidiopsis effusa. "Last year I found the biggest clump I've ever seen and we put a post on social media and it really seemed to interest ...

However, only one species was in every sample: Exidiopsis effusa. Hair ice, which isn’t so much a species of fungus as much as a watery byproduct, is rather cryptic. It forms at night and is only ...