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Why autumn 2024 is your best chance to see lots of weird and wonderful fungi

Why autumn 2024 is your best chance to see lots of weird and wonderful fungi
Parrot waxcaps fruit in autumn across northern Europe. Credit: ,

and north-western Europe have had a . Extreme weather patterns caused by climate change are nothing to celebrate, but there is one group of organisms that will have appreciated all the rain.

Numerous languages have a saying to the effect of "growing like mushrooms after the rain." Indeed, rainfall across the year is a in the prevalence of mushrooms. These are the short-lived structures we see poking above the soil that fungi use for reproduction. The rest of the fungus is actually there all the time, growing within the soil in a web of filaments known as .

Similar to the way plants spread their offspring via seeds, fungi produce mushrooms to release spores that can be carried on the wind or spread by animals. As with any organism's reproduction, it costs the fungus a lot of energy to make mushrooms, so its decision to make this investment will be attuned to when it is likely to have the best chance of success.

Spores need moisture to germinate, and it generally helps if it's not too cold. Autumn in the temperate climate found across much of Europe usually provides these conditions in abundance. Add in a mild, wet summer to get things started and that's why we're probably looking at a bumper autumn for in 2024.

How to make the most of it

Some of the most prized gourmet mushrooms can be foraged in autumn, like or . When done , it's a great hobby. But foragers beware: there has been an influx of mushroom identification books and riddled with (potentially deadly) errors, so always get information about edible mushrooms from a source.

If you ever feel tempted to pick something without being certain what it is, remember the adage: "there are old mushroom hunters and there are bold mushroom hunters, but there are no old bold mushroom hunters." Never munch on a hunch.

Autumn is the most productive season for in temperate regions, though spring is ; St George's mushroom for its tendency to appear around April 23. It's also not only mushroom-forming fungi that have these seasonal and weather-driven patterns. Cases of a called valley fever in the south-western US are caused by the microscopic Coccidioides soil fungi. They peak in the autumn, with particular surges in years following wet winters.

Considering fungi are so dependent on weather and temperature, it's not surprising that the timing and overall length of mushroom production is by . This mirrors the shifts in seasonal patterns for plants and animals.

While an extended mushroom season could sound like good news to foragers, unfortunately, changing conditions may make like valley fever . And as extreme floods become more common, exposure to mold fungi will probably become a more pressing health issue in homes.

Fungi aren't just rain-lovers, though, they're actually also . Spores released into the atmosphere from fungi can act as a surface on which moisture in the air can form water droplets, and when this happens on a large scale it can contribute to the formation of clouds.

This is just one example of the that fungi support our environment. Come rain or shine, I hope that you have the opportunity to get out into nature this and enjoy the .

Provided by The Conversation

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Citation: Why autumn 2024 is your best chance to see lots of weird and wonderful fungi (2024, October 15) retrieved 8 July 2025 from /news/2024-10-autumn-chance-lots-weird-fungi.html
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