Our plant counting expedition was rained out this morning, but here is a photo of a mushroom we came across on our outing last week. The diameter is about 10 mm and the length about 25 mm. The common name is a Stinkhorn, the scientific genus Mutinus. A black, gooey, stinky mass will appear at the end of the mushroom. This attracts flies, who carry the spores away. This link provides more information - including the x-rating.