L. Hably szerk.: Studia Botanica Hungarica 22. 1990 (Budapest, 1990)
1866 Ulmus bronni Ung.; ibid., p. 62, PI. 17, Figs. 9-10. 1866 Ulmus longifolia Ung.partim; ibid., p. 62, PI. 18, Figs. 7, 9-11. 1866 Ulmus plurinervia Ung.; ibid., p. 63, PI. 18, Figs. 12-13. 1866 Ulmus minuta Goepp.; ibid., p. 64, PI. 18, Figs. 21-22. 1866 Ulmus brauni Heer; ibid., p. 64, PI. 18, Figs. 23, 25(7), 26, 27(?). 1866 Planera Ungeri Ett. partim; ibid., p. 65, PI. 18, Figs. 14-16, 18(7), 19(?). 1881 Carpinus grandis Ung. partim; Velenovsky, p. 23, PI. 2, Fig. 25(7); PI. 3, Figs. 1-5. 1881 Ulmus longifolia Ung. partim; ibid., p. 25, PI. 4, Figs. 3-13. 1881 Planera ungeri Ett. partim; ibid., p. 26, PI. 3, Figs. 19-21, 22(7). 1881 Betula brongniartii Ett. partim; Engelhardt, p. 78, Pl. 1, Fig. 13. 1881 Carpinus grandis Ung.; ibid., p. 81, Pl. 1, Figs. 9-10. 1891 Ulmus longifolia Ung. Engelhardt, p. 160, PI. 9, Figs. 14, 16-20, 24(7). 1971 Ulmus pyramidalis Goepp.; Buzek, p. 56, PI. 19, Figs. 3-18; Pl. 20, Figs. 1-17; Pl. 21, Figs. 1-8. Material: No, 76.1.1. ; 76.6.1 76.20.1.; 76.31.1 76.63.1.; 76.64.1 76.108.1 76.144.1 76.184.1 76.109.1 76.147.1 76.187.1 76.198.1.(2); 76.199 76.243.1 76.283.1 76.300.1 59 pieces 76.250.1. 76.284.1 76.303.1 76.10 76.35.1. 76.65.1. 76.115 76.150 76.191 1.; 76. 76.268 76.287 76.304 • 1.; ; 76. ; 76. .1. ; .1. ; .1. ; 212.1 .1. ; .1. ; .1. 76.12. 40.1. ; 76.1. ; 76.132 76.174 76.193 . ; 76. 76.269 76.290 1- ; 76. 76. .1. ; .1. ; .1.; 215. .1. ; .1. : 76.13.1 43.1.; 93.1.; 76.137 76.175 76.194 1. ; 76. 76.272 76.292 .(2); 76, 76.59.1.: 76.101.1, .1.; 76. .1.; 76. .1. ; 238. 1 . ; .1.(3); .1.; 76.297.1.; 15.1. ; 142.1. ; 180.1. ; Description: The length of the leaves can reach 10 cm, their width ranging between 2.5-3.8 cm. The margin of the leaves is toothed, their form is narrow elliptic or ovate. The formation of length and width are demonstrated on Table III. The apex is acute, the basis is asymmetrical. The venation is craspedodromous , the veins of the secondary order follow each other relatively densely. On the major pieces, the number of secondary vein pairs can be 16-20. The formation of the distance between the secondary veins are presented on the graphs (Figs. 135-140). The veins of the secondary order are rigid, the angle of divergence varying between 30 - 60 degrees. The value of the angles are summarized on Table II. The U. pyramidalis is a widely distributed and characteristic species of the Egerian of Hungary. It was not found in older layers from Hungarian territory, younger occurrences are known from Ipolytarnóc, where some badly preserved specimens were found in the Eggenburgian sandstone. During the Egerian, however, it is present on all palaeobotanical localities. ANDREÁNSZKY mentioned it from the Wind's Brickyard under the name of Carpinus grandis , HABLY mentioned it from Kesztölc (1988), Nagysáp (1989) Csörög and Pomáz (under elaboration). The U. pyramidalis is the only constant and, sometimes dominant Arctotertiary species of the Hungarian Upper Oligocène. As a typical riparian plant, possibly it could penetrate the subtropical forests following the riversides. Thus its presence can be interpreted as a member of an intrazonal assemblage .