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

The secondary vein system is very regular. The pairs of vein are start­ing from the same point, or nearly the same point. The distance of the se­condary veins from the basis till the apex is as follows: 0.75, 0.9, 1.1, 0.8, 0,9 cm, angles of divergence: 50 , 46, 45, 40 . The veins of the tertiary order have not been preserved. The form of the teeth denote the genus Betula , the size of them being, however, fairly large. As we have no information on the shape of the leaf and other important fea­tures, it is not assigned to any species. Betula sp. type IV. Pl. XXV, Fig. 3; Figs. 104-106. Material: No.: 76.40.1.; 76.207.1 2 pieces Description: Medial fragments containing neither the apex nor the basal parts. The veins of the secondary order are apparent, starting at fairly large distances from each other from the midvein. All of the secondary veins terminate in a tooth after an arched divergence. These great composite teeth are generally composed of three small teeth of irregular shape, and there is no piece of distinguished size among them. The presence of large composite teeth is ceased by the basal parts of the leaf, here we have a simple toothed margin only. Juglandaceae Juglans L. cf. Juglans acuminata AI. Braun ex Unger Pl. XXVII, Fig. 2; Pl. XXVIII. Fig. 1; Fig. 107. 1845 Juglans (Carya ?) acuminata Al. Br.; Braun, p. 170. (nomen nudum) 1845 Juglans latifolia Al . Br.; ibid., p. 170. (nomen nudum) 1850 Juglans acuminata Al . Br.; Unger, p. 468. 1850 Juglans latifolia AI . Br.; ibid., p. 470. 1854 Juglans latifolia Al. Br.; Unger, p. 25, PI. 6, Fig. 2. 1855 Juglans pallida Goepp.; Goeppert, p. 36, PI. 25, Fig. 3. 1855 Juglans sieboldiana Goepp.; ibid., p. 36, PI. 25, Fig. 2. 1855 Juglans salicifolia Goepp.; ibid., p. 36, PI. 25, Figs. 4-5. 1859 Juglans vetusta Heer; Heer, p. 90, Pl. 127, Figs. 40-44. 1869 Juglans acuminata AI. Br.; Ettingshausen, p. 45, PI. 51, Fig. 12. 1869 Juglans parschlugiana Ung.; ibid., p. 46, PI. 51, Figs. 7-10. 1881 Juglans acuminata Al . Br.; Velenovsky, p. 44, PI. 8, Figs. 2, 4-6. 1891 Juglans vetusta Heer; Engelhardt, p. 191, Pl. 17, Figs. 11-12. 1971 Juglans acuminata Al. Br.; Bûzek, p. 42, PI. 9, Figs. 9-15; PI. 10, Figs. 1-6; PI. 11, Figs. 1-3; Text-fig. 3. Material: No.: 76.222.1.(=76.223.1.counterpart ) 1 piece Descripton: A leaf with almost complete counterpart, only the tip of the apex is missing, and the margin is fragmented at some places. The complete length of the leaf is 14.5 cm, its width is 4.0 cm. The margin of the leaf is entire. The basis is asymmetrical and acute. The form of the leaf is lanceo­late. The vein system is camptodromous, the secondary veins running out of the midvein in an alternating manner, their angle of divergence ranging bet­ween 60 and 80. At the intersecondary areas of the apical and basal parts the intermediate veins are seemingly frequent, forming no loops and running only till the quarter or half of the lamina. The midvein is considerably thick at the lower third of the leaf. At about the same part it is considerably curved, and this curvature can be observed along the rest of the leaf in the form of a slight arch. The distance between the secondary veins is fairly great, smaller towards the basal parts, where it is 0.8 cm. On the medial parts it is greater, 1.2-1.8 cm (Fig. 143). 29

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