Dicotylophyllum sp. 4

Kovar-Eder, Johanna, Kvaček, Zlatko, Teodoridis, Vasilis, Mazouch, Petr & Collinson, Margaret E., 2022, Floristic, Vegetation And Climate Assessment Of The Early / Middle Miocene Parschlug Flora Indicates A Distinctly Seasonal Climate, Fossil Imprint 78 (1), pp. 80-144 : 88-89

Dicotylophyllum sp. 4

2004 Dicotylophyllum sp. 4 ; Kovar-Eder et al., p. 89, pl. 15, fig. 11.

D e s c r i p t i o n. Leaf fragmentary; lamina broadly elliptic, l (inferred) × w about 96 × 70 mm, base (?) rounded, apex missing; margin simply partly double serrate, teeth coarse, regularly spaced, second order teeth distinctly smaller than first order teeth, tooth apices and sinuses sharp, coarse, proximal and distal sides rather straight; venation acrodromous, midvein straight, lateral primaries steep, rather straight, reaching well over two thirds the length of the lamina, sending side veins into teeth as do secondaries in the upper part of lamina, from side veins sometimes further veinlets run into secondary teeth; secondaries craspedodromous; tertiaries (forked) percurrent.

Dicotylophyllum sp. 5

2004 Dicotylophyllum sp. 5 ; Kovar-Eder et al., p. 89, pl. 15, fig. 12.

A d d i t i o n a l m a t e r i a l. NHMW 1878/6/7408 (counterpart of NHMW 1878/6/7507; Kovar-Eder et al. 2004: pl. 15, fig. 12).

D e s c r i p t i o n. Leaf fragmentary; lamina elongate, l × w>120 × 33 mm, ratio l/w at least 3.4, base missing, apex attenuate; margin simple serrate, apically almost crenate, teeth widely, regularly spaced, small, sometimes sharp, spine-like; midvein straight, strong; secondaries crapsedodromous to semicraspedodromous, widely spaced, steep, straight, partly forked at variable distances from the midvein, with branches either directly entering teeth or looping and sending exmedial veinlets into teeth; tertiaries percurrent, very dense, in the middle of lamina at an obtuse angle to midvein, towards margin angle somewhat decreasing.

Differing from Fraxinus sp. by widely spaced, straight and steeper secondaries, tooth shape and percurrent tertiaries.

Differing from Quercus drymeja UNGER and Q. zoroastri UNGER by larger size, less dense marginal teeth and secondaries, and steeper secondaries.