Alnus cf. menzelii RANIECKA-BOBROWSKA

Teodoridis, Vasilis, Kvaček, Zlatko, Sami, Marco, Utescher, Torsten & Martinetto, Edoardo, 2015, Palaeoenvironmental Analysis Of The Messinian Macrofossil Floras Of Tossignano And Monte Tondo (Vena Del Gesso Basin, Romagna Apennines, Northern Italy), Acta Musei Nationalis Pragae Series B 71 (3 - 4), pp. 249-292 : 264

Alnus cf. menzelii RANIECKA-BOBROWSKA

Pl. 9, Fig. 14

Incomplete simple leaf, widely elliptic, 67 mm long and 62 mm wide, apex not preserved, base rounded, margin irregularly simple serrate, teeth acute to spiny, sinus angular, venation simply craspedodromous, midrib straight, moderate, strong, secondaries alternate, thinner, at angles of 40–60°, curved, tertiary veins alternate to subopposite percurrent, straight or curved, venation of the higher orders regular polygonal reticulate, areolation well developed, 4-sided, veinlets lacking.

The leaf material is morphologically similar to Alnus menzelii and also Alnus rotundata GOEPPERT ( Raniecka-Bobrowska 1954, Zastawniak and Walther 1998), which are commonly known from the European Oligocene and Neogene. An affinity to Alnus ducalis (GAUDIN) KNOBLOCH is also possible, however a typically deeply emarginate apex is not preserved ( Knobloch 1969, Kvaček et al. 2002).

M a t e r i a l. Leaf fragment (Monte Tondo MSF1524,

MSF1525).