Phosphoresent means emmitting light without heat as by slow oxidation of phosphorous. Basically meaning that things such as glow in the dark stickers let out phosphorous that makes them glow.
Hope this helps. ;D
The word phosphorescence is a material similar to fluorescence but it does not give out light quickly. It does this because it slowly absorbs radiation.
Although the majority of mushrooms don't, believe it or not, there are 71 species of mushrooms that are bioluminescent- they glow or give off a light. Scientific America has a great article about the most recent discovery last year, of 7 species of fungi that glow. Intensely cool question!