Tiny White Mushroom for ID Please

[Lancashire Lad]

Thanks for the additional information Andreas.

Originally Posted by mollisia

....I don't know how exactly Lancashire should be investigated. Are the many people giving data?....

I don't know how many people are involved in the recording of fungi in Lancashire - I haven't yet found anywhere that the number of recorders is identified.

Regards
Mike.

[mollisia]

Hallo Mal,

Originally Posted by flaxton

D. integrella is described as having a smooth to slightly fibrillose stipe with a small bulbous base neither of which fit this specimen.

Who gives that description of a smooth to fibrillous stipe? This can only refer to old fruitbodies.
Here is what ANTONIN & NOORDELOOS write in their "Monograph of the genera Hemimycena, Delicatula, Fayodia, ... and Xeromphalina" 2004:
"Stipe [...] slightly broadened at apex, slightly broadened to subbulbose at base, often curved, white, hyaline, finely pubescent or floccose, particularly in the upper part, glabrescent with age, opaque when young, lustrous when old, with distinct rhizoids at base. Veil distinct in young stages (primordia), later on present as fine flocks on pileus and stipe of young specimens, in old basidiocarps often disappeared."

It also has ridge-like intervenose lamellae again which is not a good description of the photos from Mike.

But they are venose! You can see it clearly in the middle picture (the darker one) when you look in the space inbetween the gills that go through from cap margin to the stipe. Looks like an Arrhenia/Leptoglossum in fact.

Most of the Hemimycena also have white mycelial threads at the base of the stipe again something missing from this find unfortunately so does M spirea

I think the stipe base is not clear enough to see to be sure of an absence of these mycelium threads or rhizoids. But I admit that it looks like as there are none. Nevertheless this one argument wouldn't be strong enough for me to doubt on Delicatula, because the venose gills and the stipe covering are more distinct and more important characters to me.

Microscope needed.

This time I would do without, to be honest. May be I'm a gambler?

best regards,
Andreas

[flaxton]

Originally Posted by mollisia

Hallo Mal,

Who gives that description of a smooth to fibrillous stipe? This can only refer to old fruitbodies.
Andreas

That was from The Fungi of Switzerland The Antonin & Noordeloos description is used in the new Funga Nordica book with slight changes and omissions but it does say pubescent to almost smooth and Mikes photos show quite a bit of pubescens and it also mentions a bulbous base

Originally Posted by mollisia

But they are venose! You can see it clearly in the middle picture (the darker one) when you look in the space inbetween the gills that go through from cap margin to the stipe. Looks like an Arrhenia/Leptoglossum in fact.

I think the stipe base is not clear enough to see to be sure of an absence of these mycelium threads or rhizoids.best regards,
Andreas

How come its clear enough to see what fits with your description but not clear enough to see what fits with mine

Thats probably why it has not been recorded in Lancashire and has not been found(identified) that much in large areas of the country.

Mal

[Chris Yeates]

Originally Posted by Lancashire Lad

I've also just had a look on the British Mycological Society's NBN Gateway, and also on The Association Of British Fungus Group's CATE Database, but neither of these is showing any record of Delicatula integrella in Lancashire.

Regards
Mike.

hi

not wishing to re-start the Wars of the Roses, there are over 20 Yorkshire records (i.e. more than 10% of the BMSFRD records) so its absence from Lancashire is (was?) surely just an oversight

for historical reasons Yorkshire has been more intensively covered mycologically (the BMS was founded in the county in 1896 of course)

so don't be confused LL

best wishes from across the Pennines!

Chris