Plantagenet Wreath - little green caps

The broom flowers are to be filled in next, all one hundred of them, and I'm starting with the little green caps at their bases (I'm sure these have a proper botanical name but I have no idea what it is!).

These are in the lightest shade of green, Madeira stranded cotton no. 1401.  The first fifty worked in satin stitch:

and all hundred:

These are rather small and not that easy to see, so here's a close-up of a set of ten:

I'm really pleased with how it's coming along, and I'm looking forward to doing the flowers themselves next.