Hey folks....after seeing the photos that were posted, and paying a little closer attention to my mystery plants, I discovered that I've got buds!
Here are pics of my little itsy bitsy spikes. I hadn't even noticed the one on the warm grower...the stem is as fine as a thick hair.

It is a little yellow in color, and there is also a small brown portion near the base...

having just discovered it, I hope this doesn't mean I'm losing it. I guess time wil tell.
On a happier note, the little nubin I noticed on my intermediate grower is indeed a spike. I needed to photograph it and enlarge the image to really see it. it's nice and green, which makes me nice and happy.
For those who might not know, the first photo is the warm grower, the second is the intermediate.