Geoglossum?

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  • #30091

    Seen on chalk grassland near the Dorset coast yesterday – is Geoglossum sp. the closest its possible to get as it wasn’t collected?

    zQ Geoglossum 160203 018a.jpg

    [attachment=1]zQ Geoglossum 160203 018a.jpg[/attachment]

    zQ Geoglossum 160203 018c.jpg

    [attachment=0]zQ Geoglossum 160203 018c.jpg[/attachment]

    Thanks in advance,

    Jenny

    #38080

    A google will get you a key to earth tongues.

    A quick check of the FRDBI shows that Geoglossum fallax – which I chose at random as a representative earth tongue – is very rarely found in the new year, but I found one record in February. Of coirse there is always the problem that we all know they do not occur in january and february so we do not look for them then.

    #38081

    JennyS wrote:

    Seen on chalk grassland near the Dorset coast yesterday – is Geoglossum sp. the closest its possible to get as it wasn’t collected?

    Thanks in advance,

    Jenny


    Hi Jenny

    sadly the simple answer is that is the closest. A glimpse at this thread http://www.fungi.org.uk/viewtopic.php?f=4&t=775&hilit=geoglossum” class=”bbcode_url”>http://www.fungi.org.uk/viewtopic.php?f=4&t=775&hilit=geoglossum will show that it’s not even straightforward if one has recourse to microscopy . . . .

    best

    Chris

    #38082
    Paul Cannon
    Participant

      Hi Jenny

      Chris is quite right, though ID is not impossible with a key (Brian Spooner’s one works OK in general for me) and a microscope preparation or two. It’s important to ensure that you use mature (discharged) spores for measurement and counting septa. I was shown a neat trick to achieve this – if you dab the specimen repeatedly into a drop of water on a slide, mature spores on the fruit-body surface become dislodged and mature asci also discharge into the water drop. This seems to work even with oldish specimens.

      Your pictures look more like G. cookeanum than G. fallax to me (and the ecology is right) but the microscope is essential.

      And PS – well done with your Tubuefia find on the UKLichens site. More pictures will appear on the FGBI website from the specimen Mark Powell sent me, also of Laetisaria lichenicola….

      #38083

      Many thanks Leif, Chris and Paul – wish I’d collected it but we were looking at lichens on chalk and like an eejit I just took a couple of photos!

      Thanks Paul for the spore tip – and it was pure synchronicity coming home with the Tubuefina just after Mark had posted his description and details! Laetisaria lichenicola seems to be pretty widespread (seasonal?) as I’ve found it most places where I’ve checked Physcia tenella in the last couple of weeks.

      #38084

      Interesting Jenny – I had a late Geoglossum too on a neighbours lawn only two weeks ago -I knocked at the door and got a sample, haven’t had chance for microscopy yet though………….

      PS -whats the UK lichens site?

      Cheers

      Ken

      #38085

      Hi Ken, its one of the Yahoo groups: https://groups.yahoo.com/neo/groups/UKLichens” class=”bbcode_url”>https://groups.yahoo.com/neo/groups/UKLichens

      #38086

      Thanks Jenny – Lichens approved already – this simple guide to Earthtongues from NWFG may be helpful:

      http://fungus.org.uk/nwfg/earth-tongues.htm

      Cheers

      Ken

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