This cute little shorts set is Creations by Michie's #121,
"Sundress/Shorts Set."  We've made it up in coordinating
seersuckers from Fabric Finders - a check for the shorts
and yoke and a flower print for the main part of the top.
Limelight rick rack from Trimtex outlines the yoke.

We really like the fit in the shorts.  "Pammy's Playclothes"
from Primrose Lane is another great basic shorts pattern.