Wet causes unusual growth.
Observation: I noticed on my lawn something unusual and I think it is a fungi. It is white and kind of looks like coral growing on the grass. It showed up in more than one spot and we have never seen it before.
Cooperative Extension Service Consult: Jessie Moan, Statewide IPM Technician writes, "This is a slime mold. Slime molds are kind of like fungi. The good news is, they aren't pathogenic on the lawn, though they don't always look great." For more information about slime molds, checkout the following links below:
Plan*talk* Colorado, Slime Mold – Slime molds usually develop after rainy periods when temperatures are warm and humidity is high or the application of freshly-ground wood mulch. They can be white, gray, yellow, purple, orange or brown in color. Some people say the patches look like vomit from a dog or other animal. Source, Colorado State University Extension
Plant Disease Diagnostic Clinic, Slime Molds (Myxomycetes) – Slime molds are fungus-like organisms that have previously been classified as fungi, but they are no longer classified as fungi. Depending on the sources, there are now two or three different groups of slimemolds, one of which is the Myxomycetes. These now fall under the broader category of eukarya. Source, College of Agriculture and Life Science, Cornell University (J. Moan)
Observations From Members 
