Identification: Grass Fungus Identification

Please could someone tell me what this is it's making my lawn look horrible.

How do i treat it?

Thanks

Edit: I've added a better photo.

 

Could this be Fuligo septica with fresh grass clippings covering it? If it is the 'dog vomit slime mold', just be patient, it will eventually go away and causes no harm.

 

There not grass clippings... Thats the grass growing through it.

 

Your answer gives further evidence that it's the dog vomit slime mold.

 

Not Fuligo septica, but i don't know them.