This beautiful blob was photographed recently near our office. What is it? Bonus points will be given for telling us what it’s doing.
Answer
This blob is the fruiting body of witch’s butter, Tremella mesenterica or Tremella aurantia. Both of these species grow on decaying hardwood. A catch, though, is that witch’s butter is not decomposing dead wood, it’s parasitizing other fungi that are decomposing the dead wood. Witch’s butter can be found throughout the year during wet weather. It shrivels up when dry, but will resume its gelatinous form after the next rain.
This week’s contest winner was Arianna Alexsandra Grindrod of Ashfield, MA.