On Mon, 21 Jul 2014 23:44:07 +0000 (UTC), Red Green
wrote:

buffie wrote in
roups.com:

It's like green slime. You can power wash it off. It's not moss, or
algae, or ivy. We do live in the woods, but in a open area.


It's called the green slime that gets on the side of my house too.

If I had green slime on the side on my house, I would call it the same
thing. If it is not moss, algae, or ivy.