ICK - and slimy too??? - double ICK! I don't know what they are, but I'd continue to destroy them. We get all kinds of different looking ones growing here. Some are tiny, and some are huge! Now that we had some rain off and on for the past couple of weeks, they are popping up all over the place. I just step on them and smush them real good so that the dogs don't mess with them. I don't know which ones are poisonous and which aren't.