Phyllites rhamnoides, (ROSSM.) KVACEK et H. WALTHER, 1988

Teodoridis, Vasilis, Kvaček, Zlatko, Radoň, Miroslav, Raprich, Vladislav & Bruch, Angela A., 2020, A New Oligocene Flora From Ludvíkovice Near Děčín (České Středohoří Mts., The Czech Republic), Fossil Imprint 76 (2), pp. 297-314 : 303

Trigonobalanopsis rhamnoides (ROSSM.) KVAČEK et H.WALTHER, 1988

Pl. 2, Fig. 9

1840 Phyllites rhamnoides ROSSM. , p. 35, pl. 8, figs 30, 31.

1988 Trigonobalanopsis rhamnoides (ROSSM.) KVAČEK et H.WALTHER , p. 405, text-figs 2–4, pl. 2, figs 1–8, pls 50–54, pl. 55, figs 2–7, pl. 56, figs 1–4, pl. 57.

M a t e r i a l. 2 complete and 2 incomplete leaves, impressions PA 1651, PA 1665, PA 1667, NM-G 12813.

D e s c r i p t i o n. Leaves oblong to ovate, 32 to 86 mm long, 11 to 30 mm wide, base cuneate, apex shortly attenuate and blunt, margin entire, venation brochidodromous, midrib straight, slightly curved in its upper third, secondaries very regularly spaced, subopposite, originating at 30° to 40°, venation of higher order not preserved.

R e m a r k s. This extinct element of the Fagaceae has usually been determined mainly according to its rhamnoid (brochidodromous) venation. Occurrences in the late Eocene Staré Sedlo Fm. are rare ( Knobloch et al. 1996) as well as in Kučlín ( Kvaček and Teodoridis 2011). The early Oligocene flora of Bechlejovice contains two leaves described as cf. Quercus bavarica (KNOBLOCH et KVAČEK) KVAČEK , which may show a morphological affinity to Trigonobalanopsis. In the volcanic facies Trigonobalanopsis was usually poorly represented (Rott, Kleinsaubernitz, Lower Rhine Basin), while it became a dominant element in the Miocene mastixioid floras (e.g., Kvaček and Walther 1988, Walther 1999, Winterscheid 2018).