Hello:

I have this tree I cannot identify in my front yard. It has not grown much in the past 20 years that we have been in the house, but it has survived all the same. :)

I do notice that it has this green fungus or scaly growth on the trunk and branches.

https://www.dropbox.com/s/9g4eb7hgmylh7je/IMG_0270.jpg

https://www.dropbox.com/s/9g4eb7hgmylh7je/IMG_0269.jpg

https://www.dropbox.com/s/9g4eb7hgmylh7je/IMG_0271.jpg

Is this an issue? Anything I should do about it?

Any help appreciated.

Thanks.