Betula brongniartii ETTINGSH.

Kvaček, Zlatko, Teodoridis, Vasilis & Radoň, Miroslav, 2018, Review Of The Late Oligocene Flora Of Matrý Near Sebuzín (České Středohoří Mts., The Czech Republic), Fossil Imprint 74 (3 - 4), pp. 292-316 : 298

Betula brongniartii ETTINGSH.

Pl. 7, Figs 1–4

1866 Betula brongniartii ETTINGSH. , p. 46, pro parte, pl. 46, figs 3–4, pl. 47, fig. 1.

2002 Betula brongniartii ETTINGSH. ; Radoň, p. 170, pl. 1, figs 12–13, photo 4 above.

2009 Betula brongniartii ETTINGSH. ; Akhmetiev et al., pp. 96, 117, pl. 12, fig. 3.

M a t e r i a l s t u d i e d. Leaf impressions PA 1152.1–2, 1155.1–5, 1157.1–2, 1184, 1196.1–2, 1341, 1342, 1381, 1582.

D e s c r i p t i o n. The leaves are petiolate, lamina broadly ovate, rounded at base, acute at apex to shortly attenuate, double sharply serrate on margin, ca. 80 mm long and 50 mm wide.

D i s c u s s i o n. Leaves from Zichov assigned to Betula brongniartii ( Hably et al. 2001) match the birch foliage recovered at Matrý, particularly the strongly double serrate margin. In this way the fossil species differs from the smaller delicate leaves of Betula alboides ENGELH. (syn. B. buzekii KVAČEK et H.WALTHER ) described from the sites at Kundratice and Seifhennersdorf (cf. Kvaček and Walther 1998, Walther and Kvaček 2007).