This is what Mattia says in her French comment below:
I would say in French:
- point of coral without knot or variation of the point of coral.
This stitch is very similar to Single Feather Stitch, or Slanted Buttonhole Stitch, as it's set at an angle, don't you think?
Anyway, here are my photo instructions:
Let the needle take a bias bite of the fabric, and place the thread behind the upper part of the needle.
If you want the stitches to lie flat and neat against the fabric, use the ordinary Coral Stitch.
Sunday Stitch School Reference Chart
Teal Wool Tailoring Scribble Cloth.