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Phenology coordinator flummoxed by furry fungus

A plain brown mushroom cap is shown: long, white hair-like spikes grow from it in all directions.
KAXE
/
Charlie Mitchell
A mushroom covered in Spinellus mold grows at Wild River State Park on Sept. 7, 2025.

During the Phenology Report for the week of Sept. 30, 2025, Charlie Mitchell, KAXE phenology coordinator, discusses the BirdCast website, fungi and fall colors.

Just in time for Halloween, it's time to talk about fuzzy, furry fungi! This fall, I found a strange mushroom. It looked like a plain, run-of-the-mill brown mushroom - except for the fact it was covered in long, white whiskers. Having never seen a furry fungus before, I was flummoxed. Was this some strange adaptation for frost? Had it been electrocuted? Maybe it had been bitten by a werewolf?

When I got home, I did some googling and the mystery was solved. Because Mama Earth is always weirder than I give her credit for, I learned that I'd stumbled across a mushroom-munching mold!

Fungi in the genus Spinellus are molds that grow on mushrooms. Their fruiting bodies are long, thin, and hairlike, ending in a small spore-producing gland that allows their spores to disperse on the wind. When they sprout, it appears that the host mushroom is growing whiskers!

(If you're in need of a new vocabulary word, here it is: Mycoparasite, or a parasite that grows on fungi.)

This week's phenology report covers more than mysterious mushrooms - listen in to learn about migratory birds, fall colors, and more.

What have you seen out there? Let us know: email us at comments@kaxe.org or text us at 218-326-1234.

That does it for this week! For more phenology, subscribe to our Season Watch Newsletter or visit the Season Watch Facebook page.

Funding for this project was provided by the Minnesota Environment and Natural Resources Trust Fund as recommended by the Legislative-Citizen Commission on Minnesota Resources (LCCMR).

Charlie Mitchell (she/they) joined KAXE in February of 2022. Charlie creates the Season Watch Newsletter, produces the Phenology Talkbacks show, coordinates the Phenology in the Classroom program, and writes nature-related stories for KAXE's website. Essentailly, Charlie is John Latimer's faithful sidekick and makes sure all of KAXE's nature/phenology programs find a second life online and in podcast form.


With a background in ecology and evolutionary biology, Charlie enjoys learning a little bit about everything, whether it's plants, mushrooms, or the star-nosed mole. (Fun fact: Moles store fat in their tails, so they don't outgrow their tunnels every time conditions are good.)
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