B. Papp szerk.: Studia Botanica Hungarica 30-31. 1999-2000 (Budapest, 2000)

Erdei, Boglárka; Lesiak, Maria: A study of dispersed cuticles, fossil seeds and cones from Sarmatian (Upper Miocene) deposits of Sopron-Piusz puszta (W Hungary)

cooler or higher regions of the temperate and subtropical areas of the Northern Hemisphere. Species of southerly distribution require relatively humid climate, whereas, the northern species are quite resistant even at higher rates of continentality. Nearly half of its species are known from West- and Middle China (KRÜSSMANN 1960). ANGIOSPERMATOPHYTA Magnoliaceae Magnolia sp. (M. cor Ludwig?) (Fig. 28) Material: BP

99.515.1. Description: The length and width of the somewhat heart-shaped seed is 5 mm and 7 mm, respectively. The chalaza region is convex with clearly observable heteropyle and condylus. Testa is smooth. It shows great similarity to M. cor Ludwig (MAI 1975, p. 564, Taf. 33, Figs 1-7). Discussion: Fossil seeds of Magnolia are frequently found members of fossil floras. Magnolia cor Ludwig has been described from several Pliocene and Pleistocene floras as well, however, it represents a new member of the Hungarian fossil floras. As modern equivalents, first of all Magnolia stellata (Sieb, et Zucc.) Maxim. andM. salicifolia Maxim, are mentioned (MAI 1975). Both species occur in the mixed mesophilous forests of Middle China and Japan (MAI 1975). Juglandaceae Pterocarya limburgensis C. et E. M. Reid 1915 (Figs 29-30) 1915 Pterocarya limburgensis C. et E. M. Reid; REID and REID, p. 73, Taf. 4, Figs 15-21. 1997 Pterocarya limburgensis C. et E. M. Reid; MAI and PALAMAREV, p. 486, Taf. 1, Fig. 8; Taf. 2, Figs 6, 8. Material: BP 99.514.1. Description: A small fragment of an endocarpium which is 3 mm long and 2.5 mm wide. Some ribs are clearly observable. Discussion: The species is also known from the Pannonian lignite flora of Bükkábrány (LÁSZLÓ 1989). In addition, the species was described from numerous European fossil floras, among others from the Pliocene floras of Swalmen,