UK Fungi

o.ellingham wrote: ↑

Thu May 23, 2019 10:15 am

It is difficult to say for sure, but I think it most likely to be a disruption of the epidermal layer of the plant that has produced this powdery white appearance.

My thoughts exactly - the pattern of "infection" just doesn't look quite right.

Chris

Yes I would think Entomophthora is a safe bet. At one time these tended to be all called E. muscae , but that is probably a species complex. If you have the specimen https://pdf.sciencedirectassets.com/277912/1-s2.0-S0007152882X80016/1-s2.0-S0007152882800060/main.pdf?x-amz-security-token=AgoJb3JpZ2l...

Interesting
So is that a grazed area made by the detritivore/herbivore/(fungivore?) millipede? One assumes that a predatory centipede would have no interest in fungi.

Possibly, but one can't rule out developing Puccinia betonicae, which looks like this in its early stages and would be far more likely. I'd check back in a month or so. Any micro-shots?
cheers
Chris

I have been in touch again with Martyn Ainsworth at Kew. He has kindly given me the accurate grid reference for the Anglesey record, plus a couple of new records of his. He agrees that the fungus is probably an endophyte. Here is the amended map - I've made the dots a bit bigger for ease of use. Chr...

Hi Jenny nice find and very nice material. I suspect that there may be a lot of host-related crypto-species in this area. I have found a similar fungus on Erysiphe euonymi-japonici , the very common powdery mildew on japanese spindle. Molecular studies have shown that the Ampelomyces / Cicinobolus g...

Hello and welcome to UK fungi. Adam is of course completely correct; I am intrigued by the phrase "Hadrian shell" as there is a Phallus hadriani a rather rare, mostly coastal species https://species.nbnatlas.org/species/NHMSYS0001493100. Yours is not that species however.
Best wishes
Chris

I agree about Daedaleopsis, but it would be useful to know the habitat as well; please do read viewtopic.php?f=4&t=49

Hello Jenny
this is a totally unknown area for me, However ASCOFrance comes up with http://www.ascofrance.com/search_recolte/3666
Alain Gardiennet seems to be very good on lichenicolous fungi; but surely without images of the micro-structures one is in the realms of mere conjecture?
Chris

. . . PS. I think it's not good form for recording apps to alter the taxonomic concept being recorded without some kind of warning. I suspect I now have a few Puccinia lagenophorae records where the host is Bellis not Senecio. Any recording system worth its salt should have a field recording the or...

They can actually be very useful, they're the ones I usually use. Best used with a relatively hard-leaded pencil, helps one keep track of what's what especially with semi-permanent lactophenol-based mounts.

This could well be Agrocybe dura , but as Adam says we would need to see the underside to go any further. You can always then turn the fungus back to spread more spores (or pop it gills down in a bush to spread even more), but by this time hundreds of thousands of spores have already been liberated....