[Anton]

Well, I have found a similar thing on my Phal pulchra. I only found it tonight after checking in the GH AS I do when I get home from work.

There a bud of some description on the tip and a new bud on the stem. It only stopped flowering last month.

A disclaimer:
I know they are not sharp, but at maximum close up and hand held due to the positioning of the stem in the middle of the plant, I am more than pleased with the end result. So there !