Welcome to Fen Fungi
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Welcome to Fen Fungi the website of Jonathan Revett and "official" home of:
Geastrum britannicum a species of Earthstar not known anywhere else in the world and found by Revett himself.

**Updated September 2022**


Geastrum britannicum Fresh and fleshy

Geastrum britannicum Not fresh and fleshy

Geastrum britannicum Fresh and fleshy

   October 2019 - when it used to rain.....

Redlead Roundhead Leratiomyces ceres
Welney on woodchips

Beaked Earthstar Geastrum pectinatum
Seen an Earthstar with a "beak"? I'd really like to hear from you......


At the moment I do not have any walks planned for 2022 due to my availability and it's looking quite worrying with the lack of any significant rain in the forecast for the next few weeks.
If I am able to do any walks it will be probably be very last minute and maybe midweek as opposed to a weekend. Any updates will be posted on here but to manage expectations it might be a year off from myself.
Sorry I can't be more specific at the moment but keep sending your finds and in particular Earthstars!

March 2015

Geastrum britannicum: A World First

Much excitement then as an Earthstar I found in 2000 and have recorded annually ever since, (always convinced it wasn't just a variant of the Rayed Earthstar), has finally been shown through DNA testing to be a completely new species not known anywhere else in the world!


January 2015

Stinkhorn Phallus impudicus

I planted an unhatched egg from a foray late 2014 into a bed of sawdust in the greenhouse and watered frequently. Nothing happened for 2 weeks then voila! out shot a Stinkhorn one night. Not very scientific but rewarding nevertheless. For those of you who want to try this at home you require:

1 x Greenhouse
1 x Sawdust mixed with soil and woodchip, rich humus
1 x Stinkhorn egg 
1 x Clothes Peg or Breaking Bad style ventilator mask








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