This flower is pattern #18 in the book “75 Lace Crochet Motifs.” Instructions on page 55. Featured on page 30 of the showcase.

Finished height: 3 inches (76 mm)
Thread required: center color -- 1 yard (0.9 m); petal color -- 5 yards (4.6 m); stem color -- 2 yards (1.8 m)

All pattern samples in this book are made with size 10 thread and a size 7 (1.65 mm) crochet hook.