UK Fungi

Heather P

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  • October 22, 2023 at 4:19 pm in reply to: Dibaeis baeomyces -Schizidia and reactions #45638
    Heather P

      Thanks Neil for your help.

      I have been testing a few sterile Dibaies baeomyces with UV and they do give a very definite reaction. I use a Convoy UV torch. To me the reaction is more a deep mustard yellow rather than orange as in the book but it is a clear reaction

      I just looked up UV torches and found your helpful post from 2019 about testing out UV glasses to see if they work. I was pleased to see mine do give protection!

      Thanks again Neil

      October 9, 2023 at 3:31 pm in reply to: Dibaeis baeomyces -Schizidia and reactions #45636
      Heather P

        I should have been clearer. The tests were done at home on dry Dibaeis baeomyces and I watched for changes over some time.

        October 8, 2023 at 8:25 pm in reply to: Refractohilum peltigerae #45607
        Heather P

          Hello Neil and Paul

          Maybe the new number is from this- found at Findhorn, Moray on Peltigera sp. There should be an entry in the next British Lichen Society Bulletin.

          Heather

          June 7, 2023 at 7:44 pm in reply to: Lichenicolous on Stereocaulon #45477
          Heather P

            Thank you Neil and Paul. I will send you the photos Paul and I should be able to send a specimen. I have been meaning to return to look again so this gives me impetus to go back there. I will see if I can find any of the possible Chaenothecopsis too.

            Heather

            April 7, 2022 at 9:51 pm in reply to: Lecania naegelii or not? #44737
            Heather P

              Thanks to Maxine, Mark and Neil for your replies.

              I have just reloooked at the specimen and attach further photos. I had tried yesterday to include a section but it wouldn’t post.

              My conclusion so far as that I was wrong about the C- reaction! I used the same newish thick C but this time I got a reaction on the thallus where I had sectioned an apothecia and in section. So this takes it away from Lecania and more towards Micarea peliocarpa.

              I have 3 old specimens of M . peliocarpa, all growing on the ground with the thalli looking more “bobbly” and the apothecia much more botryose. My section brought up the C+red reaction but the algae were unclear. I didn’t get any photos worth posting.

              All the photos that follow are of the new specimen that was discussed yesterday. The alga were very approx 7×5 microns but I didn’t stain them and they were unclear.

              So thanks for all the help. The search for Lecania naegelii continues!

              December 15, 2019 at 11:24 am in reply to: Lichenicolous fungus on Lecanora polytropa #42681
              Heather P

                Fay, that’s interesting.The example of Xanthoria smut is useful – often growing on the bright yellow side of Xanthoria parietina with it’s own sun protection. I don’t know of it grows on the grey/ green side of X parietina, when it is out of the sun – I have never looked.

                Can anyone tell me whether carbonisation has a similar function.And is this why tips of paraphyses are often dark coloured?

                December 14, 2019 at 3:55 pm in reply to: Lichenicolous fungus on Lecanora polytropa #42679
                Heather P

                  Thanks Fay and Neil.

                  Please could you explain more about”melanised hyphal cells”?

                  Heather

                  August 8, 2019 at 8:20 am in reply to: Tuckermanopsis chlorophylla with lichenicolous fungus #42189
                  Heather P

                    Thanks Neil. I wondered if this is something fairly common but not recorded on this host. I will packet it up for later examination.

                    Heather

                    February 20, 2019 at 10:28 pm in reply to: Lichenicolous fungus on Xanthoparmelia mougeotii #41856
                    Heather P

                      Hi Chris and Paul,

                      Many thanks for your thoughts. I attach 3 macro photos, The bleached area is quite marked but doesn’t all have any obvious reason for this. Where perithecia do occur they are on their own with a few more scattered around nearby and where they push through the thallus the torn bleached edges of the thallus is obvious under the microscope, surrounding the blackish perithecia which just protrude a little.

                      Xanthoparmelia mougeotii with lf (1).jpg

                      [attachment=2]Xanthoparmelia mougeotii with lf (1).jpg[/attachment]

                      Xanthoparmelia mougeotii with lf (2).jpg

                      [attachment=1]Xanthoparmelia mougeotii with lf (2).jpg[/attachment]

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