Have you ever seen the lovely sight of the "Dog Vomit Fungus" growing in a mulched area ? The Dog Vomit Fungus is not a fungus, but a slime mold. I guess calling it the "Dog Vomit Slime Mold" wasn't very appealing to the International Association of Slime Mold Naming Scientists (IASMNS). Anyway, its scientific name is Fuligo septica. Which, when roughly translated into english means, "sticky stuff on the bottom of Bob's shoe". In central Pennsylvania, the Dog Vomit Fungus usually appears in late spring or summer following soaking rains. During the spring and summer of 2008 and early summer 2010, numerous sightings were reported. The slime mold is usually found growing in mulched areas near homes and office buildings, but can appear in forested areas as well. The color of this wonderful mold is often bright yellow, and in some instances, sickly orange. This colorful growth occurs when the mold is beginning its fruiting stage. It can appear seemily overnight causing some people to question what it is and how it got there. Therefore, you can see how this mold got its common name........ It must be Fluffy from across the street....... The size of this species can be very small (say a Jack Russell terrier who ran in circles too much) to very large (that Saint Bernard ate my burrito). -Birdy