Matskási István (szerk.): A Magyar Természettudományi Múzeum évkönyve 89. (Budapest 1997)

Philippe, M. ; Barbacka, M.: A reappraisal of the Jurassic woods from Hungary

C - set of slides numbered II/l

/272/34, II/3/272/26, II/4/272/37, and II/5/272/38 in HNHM, from Úrkút, collected in 1949 and labelled as Araucarioxylon; this pale silicified material probably corresponds to one of the samples ANDREÁNSZKY got in 1949. E - set of slides numbered 270/x1, 270/x-2, 270/x-3 and 27/x-4 in HNHM, labelled "Vadász, 1948, Úrkút, Alsó-Kréta [Lower Cretaceous]"; the lectotype, as said above. F - sample Bxl3 (5 slides) in GSR, labelled "Pseudagathoxylon eplenyense, det. GREGUSS, coll. TASNÁDI & KONDA, Eplény, liász [Liassic]"; we refer this wood to Simplicioxylon hungaricum; amazingly the cross section looks much more collapsed than the longitudinal ones; owing to the collapsed nature of the unique transversal slide, this cannot have been the source for pl. 1 in GREGUSS (1972); otherwise it was impossible to find on the slides the characteristic patterns of pl. 1 fig. 3 or pi. 2 fig. 4 in GREGUSS (1972). G - sample Bxl4 (4 slides) in GSR, labelled "Pseudotaxodioxylon eplenyense, det. Greguss, coll. Tasnádi & Konda, Eplény, liász [Liassic]"; this wood has all the characteristics of Simplicioxylon hungaricum; the name is, to our knowledge, unpublished. H - sample Bx36 (18 slides) in GSR, labelled "Agathoxylon hungaricum (Andreánszky) Greguss, det. P. Greguss, István akna, Vadász" [Agathoxylon hungaricum (ANDREÁNSZKY) GREGUSS, det. P. GREGUSS, István shaft, VADÁSZ]; the detail of pi. 6 fig. 1 in GREGUSS (1967) has been found on the slide; this material is also probably the original to pi. 9 and 10 in GREGUSS (1952) as there are several common pictures. I - S5, set of 3 slides in JAS, labelled "Úrkút, 1948, kovasodott fatörzs, agyag, mangán réteg fölött" [Úrkút, 1948, silicified trunk, clay over the manganese layer]; detail of pi. 20 fig. 3, illustrating Brachyoxylon urkutense in GREGUSS (1967), has been found on slides ; the wood is well preserved, and unequivocally typical of Simplicioxylon hungaricum. J - S10, set of 3 slides in JAS, labelled "2" Úrkút, 174, Cseh-Német J., kovasodott fatörzs, mangánérc" [2" Úrkút, 174, CSEH-NÉMET J., silicified trunk from the manganese ore]; xylologically typical of Simplicioxylon hungaricum. K - S

12. set of 3 slides in JAS, labelled "Úrkút, 173, 1", Cseh-Német J., kovasodott fatörzs, mangánérc" [ 1 " Úrkút, 1

73, CSEH-NÉMET J., silicified trunk from the manganese ore]; the detail of pl. 11 fig. 1, illustrating Araucarioxylon sp. 13 in GREGUSS (1967), has been found on the slides; otherwise a typical Simplicioxylon hungaricum from xylological evidence. Notes: In his original work, ANDREÁNSZKY (1949) mentioned several samples. Two were given to him by VADÁSZ in 1948, one was lignitifted, the other silicified. ANDREÁNSZKY then got two further samples in 1949, from a trunk found in Úrkút. At last the Geological Institute lent him a silicified sample, found by NOSZKY in Eplény. The silicified trunk sampled by VADÁSZ in 1948 has been choosen as the lectotype by PHILIPPE (1995). GREGUSS (1952, p. 165, pi. 9 fig. 1-9, pi. 10 fig. 10-12; and 1967, p. 19, pi. 6) First studied another sample, given by VADÁSZ of the lectotype, and then the original slides of ANDREÁNSZKY. In the holotype collection of palaeobotanical collection in Budapest, two samples, 54.488.3 from Eplény and 54.479.1 from Úrkút, are quoted as the holotypes for "Araucarioxylon hungaricum" (sic). These two samples are not cut, so they are surely not the ones from which the original slides were made. For this reason, we think the art. 8 of International Code of Botanical Nomenclature (GREUTER & MCNEIL 1994), should not be applied and we kept the lectotype chosen in 1995 (see also art. 9.1 and 9.4). In the wood slides collection of the same collection, many slides can be referred to Simplicioxylon hungaricum. However, none is clearly labelled as a type. Fortunately enough we found on slide 270/x-2 the detail of fig. 3 by ANDREÁNSZKY (1949). Thus we assume that the set of 4 slides numbered 270/x1, 270/x-2, 270/x-3 and 270/x-4 is actually the lectotype for Simplicioxylon hungaricum.