L. Hably szerk.: Studia Botanica Hungarica 22. 1990 (Budapest, 1990)

It can be observed, that from the basis towards the apex the secondary veins are branching off from the midvein at ever steeper angle. This feature can be met at several specimens, however, not with so great differences. Between the angles of divergence measurable at the lowermost and the top veins can be 20 -30 , or, at the most complete specimen where the most of the veins could be measured, there is a difference of more than 40 . This is fairly well observable at the widening phase of the lamina, that is, the part nearer to the apex. The veins of the secondary order are branching off, seemingly, in a more arched way than in the vicinity of tfie basis. The dense system of tertiary veins situated between and running parallel to the secondary veins, i.e., the intercoastal area denote the genus Alnus

. Large leaves of the species belonging to Alnus are fairly frequently met at the similarly Upper Oligocène section of the Wind's Brickyard, which are, however, toothed on the margin and their venation is craspedodrcmous

. The camptodromous vein system and the entire margin contradict an assignment to the genus of Alnus

. These features would indicate a relationship with the family of Lauraceae, but the regular secondary vein system, the angle of divergence of the secondary veins and the tertiary vein system observable at the intercoastal areas exclude this possibility. Palmae Pl. XXXVIII, Fig. 2. Material: No.: 76.205.1.; 76.208.1.; 76.219.1.(12).; cf. 76.220.1.; 76.221.1.; cf. 76.271.1.; 76.274.1.; 76.276.1.; 76.278.1.; 76.279.1.; cf. 76.289.1. 22 pieces Description: The most complete and largest leaf fragment is 22.5 cm long and 3.5 cm wide. In longitudinal direction, prominent ribs are running along the leaf, flattened by the pressure of the layers, however, still observable. On our leafprint there are four such prominent ribs observable. The pattern system consisting of smaller lines enclosing 60 with the ribs is extending over the whole surface, on the basis of which it is easy to characterize the species even on the small fragments. The stripes are situated fairly densely, at 0.5 mm intervals from each other, running parallel to each other. The stripes are dissected by weak perpendicular transversal walls set at irregular paces. The delineation of this fine structure, however, is not presented so far in palaeobotanical literature. On the basis of morphological features, probably, it is the nearest to the species Flabellaria Rüminiane (HEER 1855). Similar remains were described by H0LLICK (1936) from the Tertiary flora of Alaska under the name of F. alaskana

. More precise assignment of the fragments is not possible. What we can say for sure is, that palm trees were obviously present in the assemblage as direct proofs of the warm climate. cf. Fructus Pl. XXXI, Fig. 3. Material: No.: 76.109.1. 1 piece Description: The form of the fructus is elliptic, its length is 1.3 cm, its width is 0.8 cm. At about the middle of the piece, a depression is visible, forming a roughly 1.5 mm wide stripe along the edges. Starting from the margin of the fructus, there are extensions running at every direction the length of which cannot be exactly ascertained. The longest measurable one is 0.6 cm long. 4 0