115 rows.

The patterns shape is round. But optionally it can be blocked oval.

Meyer 14: Abb. 17, “Eiche”

Schöne alte Blütenmuster: Abb. 17, “Eiche”, photo and directions page 10, chart Fig. 28, 109 rounds. Then work round 110 as usual. The written explanation also says that there are 5 rows left to purl. So it ends after row 115.