Szekessy Vilmos (szerk.): A Magyar Természettudományi Múzeum évkönyve 56. (Budapest 1964)

Rásky, K.: Studies of Tertiary plant remains from Hungary

Diospyros rugosa SAPORTA (Plate XII, Fig. 3) Description : The diameter of the calyx remain is about 15 mm. Of the five sepals, three are broader, and two narrower, situated alternately. They show the characteristical transversal rugulosity. The length of the several sepals varies between 6—7 mm, the width 2—5 mm. The apex of the sepals are bluntly pointed. The five sepals enclose basally a regular pentagonal aperture. Remarks: The Ipolytarnóc specimen as well as the Tállya remains are best compared to the calyx remains of Diospyros rugosa described by SAPORTA (1862, p. Ill, Pt. 11, Fig. 3, and 1873, Pt. 11, Fig. 11, 24) from south France. On the other hand, they do not resemble the remains described by ETTINGSHAUSEN as Diospyros paradisiaca (1869, p. 234, Taf. 38, Fig. 31) or Diospyros bilinica (1869, p. 234, Taf. 29, Fig. 17) from the fossil flora of Bilin. The calyx impression described by UNGER as Diospyros auricula (1870, p. 26, Taf. 9, Fig. 1-4) from the fossil flora of Radoboj differs as well from the Ipolytarnóc find as his Diospyros wodani (1870, p. 26, Taf. 9, Figs. 10 — 12) ( = Diospyros hexaphylla [LESQUE.] KNOWLTON), and Diospyros obliqua (1870, p. 26, Taf. 9, Fig. 17). UNGER described a calyx impression under the name Diospyros myosotis (1851, Taf. 43, Fig. 16) also from the fossil flora of Sotzka, which specimen, however, cannot be used for comparison purposes due to its bad preservation. The calyx remains, described under the name Diospyros brachysepala A. BR., by HEER from the fossil flora of Switzerland (1859, Taf. 102, Fig. 10-13, and Taf. 153, Fig. 39 -b), cannot be identified with either the Ipolytarnóc, or the Tállya, or the Aix (France) specimens. On BERRY'S Diospyros mirafloriana described from the Upper Eocene Jackson flora (1924, p. 195, Pt. 40, Fig. 5), the calyx shows a longitudinally extending venation. GIVULESCU (1951) mentions Diospyros rugosa SAPORTA from the Lower Sarmatian layer of Luncsoara (Borod Becken, Roumania). KIRCHHEIMER summarized and critically evaluated the remains belonging to the genus Diospyros (1957, p. 154, and p. 448). KRÄUSEL described a fine fruit remain, under the name Diospyros schweinfurtii HEER (1939, p. 106, Taf. 2, Figs. 9-11) from the Upper Cretaceous of Egypt. GREGUSS (1956, p. 86

? Taf. 23-24) described the trunk remains, found in the Oligocène of the Mt. Darnó, Com. Heves, Hungary, under the name Ebenoxylon knollii HOFMANN and Ebenoxylon hofmannae GREGUSS. Comparison with recent species: SAPORTA compared the south France calyx remains with recent SE Asiatic species, such as Diospyros lanceolata ROXB., Diospyros saportae WALL., Diospyros melanoxylon BL. The Ipolytarnóc specimen might yet be compared to the calyces of the recent Diospyros decandra LOUREIRO and Diospyros tamiriensis LECOMTE. The former lives in Vietnam and Laos, the latter in Cambodia and Laos. 3. Budapest-Óbuda, Middle Oligocène Sabal major (UNG.) HEER (Plate VIII, Fig. 1) Description : The central part of a leaf blade, with long, tapering rachis. The greatest measurable width of the rachis is 2.7 cm. Both sides, but especially the right one, show the dense pinnules, slightly arched and broken. The midrib ot the leaf-rays is rarely observable. Remarks: The wide and elongate rachis remain, wLiich still shows the emission of the ravs, seems to be identical with UNGER'S species published from the fossil flora of Häring (1847, p. 42, Taf. 14, Fig. 2). It is also identical with the Sabal major species listed in the Swiss flora by HEER (1855, p. 53, Taf. 35. and Taf. 36, Fig. 2). The specimen is also identifiable with the Sabal major (UNG.) HEER finds, first demonstrated by epidermal examinations, published by WEYLAND (1959, p. 6, Taf. 2, Fig. 12) from Frimmersdorf (Rhine brown coal, Ville), REID & CHANDLER (1926, p. 79, Pt. 4, Fig. 26) from the Bembridge flora, and DEPAPE (1950, 16, Textfig. 3) from Cervera, Catalogne. It is also identical with the Sabal major remains as shown by T. N. BAIKOVSKAYA (1950) from the Middle Miocene of Dag-