Next, the lining is folded over on top of the yoke, sandwiching the collar in between. The shoulder seams are matched up and the back opening is on the fold. I then stitch around the neck opening and trimmed and clipped the seam.
Understitching the neck opening is then done to keep the lining from rolling out to the right side of the garment. I have opened up the lining and the yoke, so that I am only stitching through the yoke lining and the seam, close to the edge. You are seeing the lining and the underside of the collar in this picture.
This can be a little confusing, but I fell in love with this technique the first time that I tried it years ago. I love not having to fool with a tiny bias strip and that the yoke is lined!