Folia Historico-Naturalia Musei Matraensis - A Mátra Múzeum Természetrajzi Közleményei 17. (1992)

Bužek, Č.–László, J.: Contribution to the Upper Pannonian flora from Visonta, northern Hungary

Remark: Endocarp generally agree with specimens described from the Villafranchian of Wetterau (Mai 1973) and from the upper Miocene of the Rhine basin (Van der BURG 1987). Material: 1 specimen. Inventorized under No BK-5517 CORNACEAE Cornus cf. gorbunovil DOROFEEV (PI. VI, Figs 12-l'4): Description: Endocarps (stones) relatively hard, secondarily rather compressed, in general ovate to broad-ovate in outline, shortly pointed at the apex, about 6x5 mm large, 2-locular; surface smooth but with a few irregular longitudinally oTiented ridges bearing vascular bundles in their highest parts; the vascular bundles, if preserved also in meridional groove running around the endocarp. Remarks: Endocarps agree with those desribed by KNOBLOCH (1976, 1981a) under the name Swida gorbunovil (DOROFEEV) NEGRU from the Pannonian and Pontian of southern Moravia. However, their identification with species C. gorbunovii DOROFEEV (1963) or 5. gorbunovii (NEGRU 1972) is uncertain because both Moravian and Hungarian materials do not well correspond with those from Siberia and Moldavia in the form and surface structure of endocarps. In every case all the fossil endocarps in question must be identified with the so called blue line of Cornus in the broad sense (EYDE 1988). Material: 7 specimens. Inventorized under Nos BK-5470, BK-5507 LONICERACEAE Sambucus pulchella C. et E.M. REID (PI. Ill, Fig. 14, PI. IV, Fig. 10): Description: Seeds obovate to oblongly ovate in outline, compressed, 1.5 to 3.5 mm long and 1.2 to 1.6 mm wide, with typical surface structure and terminal hilum on the ventral face. Remark: The present species is rather common from the Eocene to Pliocene in Europe, and must be considered as a commulative taxon which cannot be divided at present. It has also been found in the Pannonian and Pontian of southern Moravia (KNOBLOCH 1981a, b). Material: 3 specimens. Inventorized under Nos BK-5504, BK-5541 ? ONAGRACEAE Hartzlella miocenica SZAFER (PI. II, Fig. 17): Description: Fruits, somewhat rough, with rather low and round ribs and furrows in the basic number 3, but also further interspaced ones are indicated; not deformed specimen, 2 mm long and 1.5 mm wide, deformed specimen, somewhat smaller, with small apical depression (scar of attachment) probably of triangular form, single dehiscent valve situated over the main rib and therefore It is clearly keeled. Besides, somewhat larger, rather abraded specimen with more distinct ribs has been found, which may belong to some other species of the genus Hartzlella. Remark: Fossil species of this interesting extinct genus were reviewed by KNOBLOCH (19B2). Relations of the above-mentioned larger specimen are not clear at present. Material: 2 specimens. Inventorized under Nos 8K-5466, BK-5512 AQUIFOLIACEAE Ilex sp. (PI. VI, Fig. 15): Description: Endocarp, in lateral vlwe narrowly sicle-llke, dorsally slightly convex, about 5 mm long and 2 mm wide, the angle between the lateral sides seems to be rather acute (the surface structure is somewhat fallen in), dorsal side with two complete longitudinal and a few short sharp up to wing-like ridges, one lateral side more ridged than the other. Remark: Endocarp does not well agres with any fossil species known from the Upper Miocene or Pliocene. Similar endocarpe of I. fortunensis Van der Bura (1983) ere smooth on the lateral sides. Material: 1 specimen. Inventorized under No BK-5513 lower lower 59