Alnus kefersteinii (GÖPPERT) UNGER

Kvaček, Zlatko, Teodoridis, Vasilis & Zajícová, Jana, 2015, Revision Of The Early Oligocene Flora Of Hrazený Hill (Formerly Pirskenberg) In Knížecí Near Šluknov, North Bohemia, Acta Musei Nationalis Pragae Series B 71 (1 - 2), pp. 55-102 : 67-68

Alnus kefersteinii (GÖPPERT) UNGER

Pl. 15, Fig. 8–9

1838 Alnites kefersteinii GÖPPERT , p. 364, pl. 41, fig. 1–19.

1847 Alnus kefersteinii (GÖPPERT) UNGER , p. 115, pro parte, pl. 33, fig. 1–3.

1961 Betula sp. ; Knobloch, p. 267, pro parte, pl. 5, fig. 14 (non pl. 10, fig. 8 = indeterminable object).

1961 Alnus sp. ; Knobloch, p. 268, pl. 2, fig. 3, 12.

Alder infructescences 14–21 mm long, 10–12 mm wide, catkins containing in situ pentaporate pollen of Alnus .

D i s c u s s i o n. Both female and male reproductive organs are assigned to the same fossil species following the original Göppert’s (1838) concept. The same type of A. gaudinii foliage has been found in association with similar infructescences at many other Oligocene sites, e.g. Kundratice ( Kvaček and Walther 1998) and Seifhennerdorf ( Walther and Kvaček 2007).

M a t e r i a l s t u d i e d: Infructescences and catkins with pollen in situ, NM-G2819, NM-G2820, NM-G2840, EK 342–343.