Matskási István (szerk.): A Magyar Természettudományi Múzeum évkönyve 83. (Budapest 1991)

Kvaček, Z. ; Hably, L.: Notes on the Egerian stratotype flora at Eger (Wind Brickyard), Hungary, Upper Oligocene

LEGUMINOSAE Leguminocarpon sp. div. (Plate X: 1-3) Among numerous pods of Leguminosae occurring in EWU, at least four kinds can be reliably recognized. Leguminocarpon sp. 1 (e.g. MM 56.1333.1, 56.1336.1, 62.123.1, and others) are pods more than 8 cm long and about 1 cm wide with distinct elongated areolated venetion but without any trace of the seeds. Leguminocarpon sp. 2 (MM 56.1335.1, 56.1263.2, 56.1264.1, 56.1278.1, 56.1282 etc.) are similar in size but differ in blumt apex and well visible seeds traces (up to 8). Leguminocarpon sp. 3 occurs very rarely (MM 56.1455.1, 55.5450.1) and represents short Ç'Podogonium"-\\ke) pods that recall Gleditsia knorrii (HEER) GREGOR. It was described as Legominocarpum machaerioides ANDREÁNSZKY (1962, 227. textf.5) from EWU but the typespecimen has been missing from MM. Leguminocarpon sp. 4 are pods with narrowings according to the seed positions (MM 56.1281.1, 56.1271.1), otherwise similar to the first of the species. A thorough study and comparison with the so far described species scattered in the literature (e.g. UNGER 1850, WESSEL & WEBER 1855, SAPORTA 1867,1873, etc.) will be in a separate paper (HABLY in prep.). Leguminosites sp. div. Leaflets of legums are a characteristic feature of EWU, where they occur in various sizes and forms, some narrow elliptic, hardly attaining 4 cm in length, others ovate acuminate, more than 6 cm long, prevailingly with dense brochidodromous, fine and not always visible venation. Their specific differentiation would be a difficult task. We refrain from doing it and refer to a separate study (HABLY in prep.). MELIACEAE Cedrela macrophylla ANDREÁNSZKY, 1955 (Plate X: 4) One of the dominant species in EWU is represented by large elongate leaflets with nearly parallel margins and sometimes very asymmetric shallow cordate base. From among the type-specimens indicated by ANDREÁNSZKY we suggest BP 54.1511.1, left (ANDREÁNSZKY 1955, textf. 5, extreme left specimen) as the lectotype. Rhus succedanoides ANDREÁNSZKY (1962, 229. textf. 6, MM 78.04.1) is only a smaller leaflet of C. macrophylla. Similar leaf remains were described by BUÍEK (1971) as Juglans acuminata Al. Br. from the North Bohemian Lower Miocene, They differ from the type-specimens (see HANTKE 1954) and can be conspecific with C. macrophylla. The generic assignment seems to be probable in view of the friuts of Cedrela occurring in Tertiary strata. However, no such fruit remains associated with the above-described foliage have been recovered at EW so far. ACERACEAE Acer tricuspidatum BRONN, 1838 (Plate X: 5) Another dominant species of EWU is Acer tricuspidatum. Along with the standart form A tricuspidatum f. tricuspidatum also rare A. tricuspidatum f. brachyphyllum (HEER) PROCHÁZKA et BUZEK and A. tricuspidatum f. productum (AL. BR.) PROCHÁZKA et BU2EK can be met with. The populations of this maple occurring at EW and elsewhere in the European Late Oligocène differ from the Lower Miocene ones by another quite frequent leaf from the standart A. tricuspidatum. It possesses finely serrate lobes that are longly tapered. ANDREÁNSZKY (1955b) treated it as a separate species Acer hungaricum ANDREÁNSZKY but we suggest to reduce it to a form (Acer tricuspidatum BRONN forma hungaricum (ANDREÁNSZKY) staL n. (Basionym: Acer hungaricum ANDREÁNSZKY 1955, 81.200. pl. 22, f. 1, 2, Lectotype: BP 83.284.1 - 1. c. f. 2). Similar leaf forms were described from the Oligocène of Bois d'Asson, Manosque as Acer tenuilobatum SAPORTA (1867) and