The signals of spikes?

[jai_star]

Ok i'm a keen observant of my Phals yes that means everyday with a magnifier, and lately I have noticed these small circular spots very dark pigmented they are positioned right between 2 leaves at the base right where a spike node will come from. I know that this is too early stage to tell if it's anything but I ask myself why aren't these spots anywhere else? Are they signals that there are spikes coming or it can be roots but I have noticed with roots they burst out quickly and start out with more of a reddish tinge anyone else observed these in Phals? The pictures are of two seperate Phals both having the markings around the same area.