Lichen or Fungi? jamieharrop2015-11-05T16:09:00+00:00November 5th, 2015|0 Comments I was taken by this Horse Chestnut tree in York and the striking sulphur yellow markings. Is this a lichen, or a fungi that has not yet developed? The numerous bonnet mushrooms at the base may be Lilac Bonnet Mycena pura? No Comments Peachysteve November 6, 2015 at 9:43 am - Reply Hi Philip, I'd say this is a fungus but can't say which. The fungus at the base looks like Coprinellus disseminatus Fairy Inkcap Philip November 7, 2015 at 1:52 pm - Reply Thanks for your comments Steve and identifying the Coprinellus. Leave A Comment Cancel replyComment Save my name, email, and website in this browser for the next time I comment. Don't subscribe All Replies to my comments Notify me of followup comments via e-mail. You can also subscribe without commenting.