Tremella mesenterica is not your typical looking mushroom, but appears rather like someone stuck a spoon into a jar of orange marmalade and splattered it across a log. There are a number of these jelly fungi, many of which have the texture of a Gummi BearTM. They're surprisingly tough. All of the jelly fungi are members of the Basidiomycota, although there are also jelly-like Ascomycota, so you'll have to check microscopically to be sure sometimes. The jelly fungi are found in three orders: the Tremellales, Auriculariales and the Dacrymycetales. All unusual types of basidia; the Tremellales have vertically septate basidia, the Auriculariales have transversely septate basidia (these are both types of phragmobasidia-- phragmo means fragmented) and the Dacrymycetales have tuning fork basidia. Most mushrooms that you are familiar with have basidia that are not septate (holobasidia-- holo means whole or entire).