Is this a yeast starter infection? (Microscope Pics)

[jacksblueribbon]

here are three microscope pics I took today of a Ringwood ale yeast I pulled from a bottle of beer from a local brewery. I brought it up in 250mL brown rice syrup wort in a sanitized culture flask. the target yeast are obvious but what Im worried about is the little guys. I think they are too big to be bacteria so maybe other yeast? I smelled the starter and it smelled fine. I have not tasted it yet. any opinions?

 

[jacksblueribbon]

I should mention that i started with the yeast in the bottle cultured in a 15mL culture tube and then i moved it to the culture flask after 2 days. This sample is after 3days in the flask.

The wort does not foam when shaken. This is what wierded me out the most. In all my other cultures the shake causes excessive foaming

 

[jacksblueribbon]

...Anybody?

I am brewing today and i may just pitch this yeast. Stop me if this is a bad idea