Pond Boss Forums AQUATIC VEGETATION Identifying plants Any ideas what it was?

I was in Northern Wi. over the weekend (Pike lake, Fifield, Wi.) and saw what I can only describe as a growth on the stems of lily pads that were in the lake. It looked like a pineapple shaped mass of frog eggs, but when I picked one out of the water that was floating it was slightly slimy but hard, akin to the concestincy of a very firm water balloon. The size varied, from 3" dia x 5" long to 6" dia x 8" or 9" long. I didn't have the camera with me, and didn't think to take a pic on my cell phone. It was growing under the water surface, but it would float if the stem of the lily pad broke off and the leaf wasn't present. I saw either one or 2 masses on a stem.

The outside looked like it was made up of different pieces, like the outside of a pineapple does, but when picked up out of the water, it held together and couldn't be poked apart easily. No real color to it, mostly translucent with a hint of black/grey in it.

I don't think it was eggs of any sort because it's late in the year, but I could be wrong.

Any ideas?????