Salix sp.

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 : 69

Salix sp.

Pl. 17, Fig. 1–3

1961 Populus rottensis WEYLAND ; Knobloch, p. 254, pl. 1, fig. 9, pl. 11, fig. 9.

Leaves narrow lanceolate, up to 85 mm long and 16–18 mm wide, base rounded with thick petiole, margin glandular serrate. Midrib thick, secondary veins quite steep, camptodromous to semicraspedodromous, bent along the margin, lower pair almost opposite. Tertiary veins reticulate.

D i s c u s s i o n. Knobloch (1961) followed Weyland (1937) who suggested similar material from Rott to belong to Populus and assigned also his fragmentary impressions to Populus , mainly because of lacking intersecondary veinlets. In our opinion these leaf impressions are more comparable with foliage of willows, described from other Oligocene sites as Salix varians GÖPPERT with preserved epidermal anatomy important for distinguishing both genera (see Walther in Mai and Walther 1978, Walther and Kvaček 2007).

M a t e r i a l s t u d i e d: Leaf impressions, NM-G2806,

NM-G2893a, b, EK 360a, b, more fragments not numbered.