Quercus sect. Quercus

Denk, Thomas, Sami, Marco, Teodoridis, Vasilis & Martinetto, Edoardo, 2022, The Late Early Pleistocene Flora Of Oriolo, Faenza (Italy): Assembly Of The Modern Forest Biome, Fossil Imprint 78 (1), pp. 217-262 : 232-234

Quercus sect. Quercus sp. indet.

Text-fig. 8g

M a t e r i a l. Oriolo MSF 658, 658-1.

D e s c r i p t i o n. Acorn, 38 mm long, 15 mm wide, oblong-elliptic in outline, with furrows running parallel with the long axis of the acorn.

R e m a r k s. Acorns of this type are produced by several western Eurasian species of Quercus sect. Quercus , Q. ilex

L., 1753, and Q. coccifera L., 1753, of sect. Ilex .

Quercus aff. pubescens WILLD., 1796

Text-fig. 8f

M a t e r i a l. Oriolo MSF 633, 688,?697,?701.

D e s c r i p t i o n. Leaf, simple, petiolate, lamina elliptic, 50–62 mm long, 25–30 mm wide, shallowly lobed, number of lobes 5–6, base cordate, auriculate, apex rounded acute.

R e m a r k s. The distinction between Quercus pubescens and Q. petraea L. is not straightforward. Quercus pubescens leaves commonly have a cordate or auriculate base and broadly rounded lobe apices. In Europe, Q. petraea leaves never have a cordate base, and lobes are rounded triangular. However, eastern populations of the closely related Q. iberica M.BIEB., 1808 (syn. Q. petraea subsp. polycarpa (SCHUR) SOÓ, 1943 ) commonly have cordate leaf bases, but differ from Q. pubescens in their higher number of secondary veins and lobes.

Figures

Text-fig. 8. a–e: Quercus aff. cerris. a: Cup, Oriolo MSF 984. b: Cup, Oriolo MSF 982. c: Leaf, Oriolo MSF 689. d: Leaf, Oriolo MSF 659. e: Oriolo MSF 657. f: Quercus aff. pubescens Oriolo MSF 688. g: Quercus sect. Quercus acorn, Oriolo MSF 658. h–j: Quercus iberica. h: Oriolo MSF 694. i: Oriolo MSF 639. j: Oriolo MSF 698. Scale bars 10 mm (a, b, g), 50 mm (c–f, h–j).