Engelhardia macroptera (BRONGNIART) 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 : 66

Engelhardia macroptera (BRONGNIART) UNGER

Pl. 14, Fig. 5

1828 Carpinus macroptera BRONGNIART , p. 48, pl. 3, fig. 6.

1866 Engelhardia macroptera (BRONGNIART) UNGER , p. 52, pl. 16, fig. 9–12.

1961 Engelhardia macroptera (BRONGNIART) UNGER ; Knobloch, p. 261, pl. 4, fig. 4, 10.

Fruits are rounded nuts attached to a four-winged involucrum. The main three wings are triveined, the medial wing is longer, rounded at the apex, the very short forth wing envelopes the fruit basally. Venation consists of elongate fields along the main veins, forming smaller areoles towards the lobe margin (translated and emended from Knobloch 1958).

D i s c u s s i o n. The fruits of Engelhardia occur only rarely in the Knížecí plant assemblage and match other occurrences in the European Tertiary (see Mai in Jähnichen et al. 1977).

M a t e r i a l s t u d i e d: Fragmentary involucres, EK

312.