Agrocybe arvalis

A showcase for identified rare, exciting fungi, perhaps 'firsts' for your county

Agrocybe arvalis

Postby Leif Goodwin » Sat Feb 07, 2015 5:50 pm

This one from October 2013 was annoying me. Fortunately today I found some dried specimens and under the microscope the presence of long finger like projections on gill face cystidia led me to Agrocybe arvalis, not common, but not all that rare, apparently often found in flowerbeds mulched with wood chips.

DSC_0309 Agrocybe arvalis.jpg

DSC_0310 Agrocybe arvalis.jpg


The slender specimens are more typical.

Spores in Congo red:
_DSC2962 Agrocybe arvalis spores Congo red x100.jpg


Gill face cystidium showing the apical finger like projections:
_DSC2955 Agrocybe arvalis GFC x40 Congo red.jpg
_DSC2955 Agrocybe arvalis GFC x40 Congo red.jpg (40.41 KiB) Viewed 5902 times
Last edited by Leif Goodwin on Sun Feb 08, 2015 9:27 am, edited 1 time in total.
Fungi and Nature Photography: http://www.leifgoodwin.co.uk/Fungi/Fungi.html
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Re: Agrocybe arvalis

Postby Chris Johnson » Sun Feb 08, 2015 8:55 am

A nice find, Leif. What interesting and distinct cystidia. Not one I have found.

Chris
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Re: Agrocybe arvalis

Postby Leif Goodwin » Sun Feb 08, 2015 9:30 am

Thanks Chris, at first I thought they were basidia! Fortunately Funga Nordica has a drawing of one.
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