The Swedish name is Knapphålsstygn På Högkant! A mouthful in any language!
Updated: French names, Point Perlé, Point de Perle, Point Mille Pattes
I have found Pearl Stitch or Pearl Knot Stitch in these books, but they vary slightly in the instructions.
My favorite instruction is online at Sarah's Hand Embroidery Tutorials.
The result when worked over three vertical holes, or two, on this Aida.
SSS Reference Chart
A rectangular line on the linen cloth