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

Remarks: The reproductive organs may belong to the leaf remains of Alnus cecroplaefolla (ETT.) BERGER and A. ducalis (GAUDIN) KNOBLOCH (=A. hoernesii STUR) known from the Pannonian and Pontian of southern Moravia (KNOBLOCH 1969). Some leaf fragments found In washing were anatomically identified by Z. KVACEK. The epidermal structure of the fragments matches well with the remains of A. cecroplaefolla from the Pannonian and Pontian of southern Moravia and Slovakia. Otherwise very similar A. julianiformls (STERMB.) HOLY et KVACEK differs in slightly and finely undulating anticlines and poorly cutinized glandular bases. Complex catkin-scales with 5 lappets are characteristic of Alnus L.. and the pollen grains of this genus were really evidenced by M. KONZALOVA during microscopical study of the present material. Material: Many parts of cones in different stages of ripening and preservation, more than 40 detached cone scales and 3 parts and about 15 small fragments of catkins. Inventorized under Nos BK-5449-BK-5451

, BK-5486, BK-5490, BK-5491, BK-549B, BK-5509 Carpinus sp. ex gr. betulus L. (PI. VI. Figs. 1-4): Description: Fruits (nuts) often secondarily flattened and deformed, 1.5 'to 3.5 mm long, 2.5 to 3 mm wide, ovate to broad-ovate in outline, narrowed to shortly mucronate at the apex, rounded to truncate at the base, with 1 to 3 (mostly 2) distinct ridges on the usually abraded surface. Remarks: As it was already pointed out by Polish authors almost all fossil material of this character must be accepted as a small fruited form of С betulus which together with C. caroliniana WALT, are the only species with distinct ridges (see also Van der BURG 1983). Such carpological material was described from the Pliocene (SZAFER 1947, Van der BURG 1978). Present material well agree with that in every respect as well. Similar material from the Pontian of southern Moravia (KNOBLOCH 1981a) was identified as С europaea NEGRU and further probably Pannonian, material from northern Slovakia (KNOBLOCH 1980) was considered аз C. cf. betulus. For any further identification and explanation of affinity in Carpinus detailed morphological and anatomical studies are necessary. Material: About 50 specimens., inventorized under Nos BK-5463, BK-5481, BK-5527 SALICACEAE Salix sp. (PI. VI. Figs. 8-11): Description: Bud- scales detached (only a few buds inserted to the fragment of twig), generally broad-conical, flattened very variable In size, 1.5 to 5 mm long and 1.5 to 3 mm wide, blunt at the apex and narrowed into circular basal rim of insertion, surface lustrous, wrinkled and irregularly crumpled; they are usually open (empty), with overlapping edges (on the adaxlal side in the Inserted bud), in some cases with remnants in their interiors (buds). Fruit (capsule) ovold-conic, relatively small (incomplete length 2 mm), short-stalked, 2-valved, widely open after dehiscence, at the base asymmetrically developed, obtuse, slowly narrowed into the apexes of the valves (their apical parts are broken off), smooth on the surface. Remarks: Such one-membered bud-scales agree with those of Salix (composed of two fused individual scales). They are also found in the Pontian of southern Moravia (C. BÖZEK, unpublished) where occurred together with the leaf and stipule remains of Salix. The fruit agrees in all recpects with that of Salix as well but it has somewhat smaller size. Material: More than 50 bud-scales or buds and 1 fruit. Inventorized under Nos BK-5454, BK-54Í8, BK-5479, BK-5502, BK-5514 FAGACEAE Fagus decurrens C. et E.M. REIO (PI. VII. Figs. 1-12, 13, 14, PI. VIII, Figs. Description: Cupules woody, nevertheless rather compressed, 4-lobed (valved), evidently in different stages of development, relatively very small, about 6 to 12 mm long and 3.5 to 12 mm wide (but one fragment of cupule indicates even larger dimensions), sometimes shortly stalked, esymmetric stalk up to 2 mm long, stout; one of the largest cupules with two overlapping fruits inside; lobes prolongated aplcally, free from about one half of the cupule length in 57