Ziziphus bilinica ETTINGSHAUSEN

Kvaček, Zlatko & Teodoridis, Vasilis, 2011, The Late Eocene Flora Of Kučlín Near Bílina In North Bohemia Revisited, Acta Musei Nationalis Pragae Series B 67 (3 - 4), pp. 83-144 : 96-97

Ziziphus bilinica ETTINGSHAUSEN

Pl. 16, figs 3-5

1869 Ziziphus bilinicus ETTINGSHAUSEN , p. 40, pl. 51, fig. 1.

1990 Ziziphus ungeri HEER ; Bůžek et al., p. 172, fig. 3.20.

2001 Ziziphus bilinicus ETTINGSHAUSEN ; Hably et al., p. 41, pl. 37, fig. 3.

Twig with attached alternate leaves, detached leaves short petiolate, lamina ovate to broadly ovate, asymmetrical, base rounded, margin serrate to fine serrate, apex missing, venation triveined, acrodromous, midrib slightly bent, basal veins reaching well above half of the lamina or almost into the apex, higher secondaries very few, thin, tertiaries perpendicular to the midrib, dense.

D i s c u s s i o n: This species is often merged with Ziziphus ziziphoides (UNGER) WEYLAND , a common Oligocene plant in Europe. We maintain the Kučlín population separate because Ziziphus -like morphotypes require a more detailed revision in Europe, which is beyond the scope of the present study.

M a t e r i a l: BP 59.1139 .1 (holotype) , KUC 141 A .

Ulmaceae