I found some sort of fungus growing in my basement today. It is tan-yellowish, it is trumpet shaped (kinda sinks down in the middle on the top, no separate cap and stem, edges of top are kinda wavy.
go here for pictures (not very good ones though):
http://i79.photobucket.com/albums/j130/lcivitie/P5290016.jpg
http://i79.photobucket.com/albums/j130/lcivitie/P5290017.jpg
in this next one, the fungus is upside down-
http://i79.photobucket.com/albums/j130/lcivitie/P5290018.jpg
http://i79.photobucket.com/albums/j130/lcivitie/P5290015.jpg

What is this and how is it growing out of my basement floor??