Identification: lichen found on a sand dune in France

Discussion in 'Fungi, Lichens and Slime Molds' started by jac, Oct 2, 2010.

  1. jac

    jac Member

    Messages:
    5
    Likes Received:
    0
    Location:
    Paris France
    Hi,
    First time I post on that forum. I apologize for my poor english (posting from France).
    The attached photo was taken a few weeks ago on a dune on the atlantic coast of France.
    Looks like a lichen, growing together with Ephedra distachya (I do not know the english name). From what I gathered on the web, could be cladonia furcata or something similar.
    Can somebody confirm ?
    Thanks
    Jac

    more pictures of the lichen at http://fogeo.free.fr/flore/autres_dunaire.html
     

    Attached Files:

  2. togata57

    togata57 Contributor 10 Years

    Messages:
    3,230
    Likes Received:
    208
    Location:
    Columbus, Ohio
    Perhaps Clavulina cinerea, but I think that you are right.
    Fear not: I am certain that our members will have a positive ID for you tout de suite.
    Bienvenue, jac!
     
  3. jac

    jac Member

    Messages:
    5
    Likes Received:
    0
    Location:
    Paris France
    thank you tagata57 for your answer and suggestions,
    I had not considered the possibility that my "lichen" could be a mushroom, I shall dig the idea.
    Regarding Clavulina, I have never seen large areas of lands covered with it, rather isolated bunches, but maybe somebody knows more about it
    Jac
     
  4. Michael F

    Michael F Paragon of Plants Forums Moderator 10 Years

    Messages:
    11,077
    Likes Received:
    319
    Location:
    Britain zone 8/9
    Maybe a Cladonia species. Not sure though, as I can only see the thumbnail, the full size photo is not loading (Daniel, this has been a fairly frequent problem in recent weeks, any idea why?).
     
  5. Michael F

    Michael F Paragon of Plants Forums Moderator 10 Years

    Messages:
    11,077
    Likes Received:
    319
    Location:
    Britain zone 8/9
    Aha! Photo loaded on the 5th attempt at clicking on it.

    Looks good for Cladonia portentosa, though there are several similar species so can't be certain if that is the right one (I am using a UK book, and don't know what species occur in western France).
     
  6. Daniel Mosquin

    Daniel Mosquin Paragon of Plants UBC Botanical Garden Forums Administrator Forums Moderator 10 Years

    Messages:
    10,359
    Likes Received:
    499
    Location:
    Vancouver, British Columbia, Canada
    Off-topic for this thread, but the reason is that the web server is apparently getting to the end of its life (it isn't able to always successfully serve large image files). I had hoped to move the site over to the new hosting services we are going to use before my vacations, but there was far too much prep work and too little time. Right now, I've scheduled Oct 18 for moving the site over and things should return to normal after that.
     
  7. jac

    jac Member

    Messages:
    5
    Likes Received:
    0
    Location:
    Paris France
  8. Michael F

    Michael F Paragon of Plants Forums Moderator 10 Years

    Messages:
    11,077
    Likes Received:
    319
    Location:
    Britain zone 8/9
    Not all Cladonia spp., no; the others that look fairly similar in my UK book are C. uncialis (next best fit), C. arbuscula, and (somewhat less similar) C. rangiferina (which only occurs in northern Britain northward anyway). It doesn't mention the species C. furcata that you mentioned above, maybe that one doesn't occur in Britain (or if it does, is rare). The book also has another 10 Cladonia spp. which don't look at all similar.

    PS Daniel - thanks!
     
  9. jac

    jac Member

    Messages:
    5
    Likes Received:
    0
    Location:
    Paris France
    ok, thank you, I'll have a look at this large Cladonia family !
     
  10. Harri Harmaja

    Harri Harmaja Active Member 10 Years

    Messages:
    151
    Likes Received:
    0
    Location:
    Finland
  11. Dave-Florida

    Dave-Florida Active Member

    Messages:
    409
    Likes Received:
    0
    Location:
    Vero Beach, Fla., USA
    Looks plausibly like Cladonia uncialis, which has a huge North American distribution. There are some Cladonias with narrow distributions, however.
     
  12. Frog

    Frog Rising Contributor Forums Moderator 10 Years

    Messages:
    2,065
    Likes Received:
    247
    Location:
    B.C., Canada
    It looks like Cladina to me, rather than Cladonia.

    cheers,
    frog
     
  13. Silver surfer

    Silver surfer Generous Contributor 10 Years

    Messages:
    3,885
    Likes Received:
    257
    Location:
    PERTHSHIRE. SCOTLAND.UK
  14. Frog

    Frog Rising Contributor Forums Moderator 10 Years

    Messages:
    2,065
    Likes Received:
    247
    Location:
    B.C., Canada
    Wierd and interesting! Thank you for sharing that; I'll have to bend some lichenologists ears on this topic.
    Well, therefore in the old sense of the genera, Cladina and Cladonia represent two distinct morphologies, and the photo in this thread looks like a Cladina in that sense.
    :-)
    frog
     

Share This Page