The paper provides data on new localities of a recently found species in Croatia – Rumex thyrsiflorus Fingerh. These localities are in the vicinity of Đurđevac, Kalinovac and Kloštar Podravski, some 80 km south-east of the localities in which it first occurred in Croatia.Izneseni su podaci o novim nalazištima nedavno pronađene vrste u Hrvatskoj Rumex thyrsiflorus Fingerh. Nova nalazišta su u okolici Đurđevca, Kalinovca i Kloštra Podravskog oko 80 km jugoistočno od lokaliteta na kojima je ta vrsta po prvi puta nađena u Hrvatskoj

Vladimir Hršak

Izneseni su podaci o novim nalazištima nedavno pronađene vrste u Hrvatskoj Rumex thyrsiflorus Fingerh. Nova nalazišta su u okolici Đurđevca, Kalinovca i Kloštra Podravskog oko 80 km jugoistočno od lokaliteta na kojima je ta vrsta po prvi puta nađena u Hrvatskoj.The paper provides data on new localities of a recently found species in Croatia – Rumex thyrsiflorus Fingerh. These localities are in the vicinity of Đurđevac, Kalinovac and Kloštar Podravski, some 80 km south-east of the localities in which it first occurred in Croatia

Hršak, Vladimir

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ISSN 1330-0520 short communication / kratko priop}enjeUDK 581.95:582.657.581.555(497.5)NEW LOCALITIES OF THE SPECIESRumex thyrsiflorus FINGERH. IN CROATIAVLADIMIR HR[AKDepartment of Botany, Faculty of Science, University of Zagreb, Maruli}ev trg20/II, HR-10000 Zagreb, CroatiaHršak, V.: New localities of the species Rumex thyrsiflorus Fingerh. in Croatia. Nat. Croat.,Vol. 8, No. 4., 453–457, 1999, Zagreb.The paper povides data on new localities of a recently found species in Croatia – Rumex thyrsi-florus Fingerh. These localities are in the vicinity of \ur|evac, Kalinovac and Kloštar Podravski,some 80 km south-east of the localities in which it first occurred in Croatia.Key words: Rumex thyrsiflorus Fingerh., new localities, \ur|evac, Croatian floraHršak, V.: Nova nalazišta vrste Rumex thyrsiflorus Fingerh. u Hrvatskoj. Nat. Croat., Vol. 8,No. 4., 453–457, 1999, Zagreb.Izneseni su podaci o novim nalazištima nedavno prona|ene vrste u Hrvatskoj Rumex thyrsiflo-rus Fingerh. Nova nalazišta su u okolici \ur|evca, Kalinovca i Kloštra Podravskog oko 80 kmjugoisto~no od lokaliteta na kojima je ta vrsta po prvi puta na|ena u Hrvatskoj.Klju~ne rije~i: Rumex thyrsiflorus Fingerh., nova nalazišta, \ur|evac, flora HrvatskeINTRODUCTIONIn the autumn of 1996 the Slovenian botanist Nejc JOGAN (1997) discovered Ru-mex thyrsiflorus Fingerh. in the Republic of Croatia. Having found the species inseveral locations in Slovenia, including those near the very border with Croatia, heassumed that the same species could be found on the Croatian side of the border aswell. Led by this hypothesis, he crossed the border and found Rumex thyrsiflorusFingerh. in the vicinity of the town of Vara`din and in the area between Vara`dinand the Slovenian border (Fig. 1).In the course of botanical research in the surroundings of \ur|evac in July 1999the species was found in several places in the vicinity of the town and the neigh-bouring settlements. The reason for publishing data about this species is that it wasonly recently found in Croatia and no other data, apart from those concerning thefirst findings, are available.Croatian Natural History Museum, Demetrova 1, Zagreb, CroatiaNAT. CROAT. VOL. 8 No 4 453¿457 ZAGREB December 31, 1999THE DISTRIBUTION OF Rumex thyrsiflorus FINGERH.General distributionRumex thyrsiflorus Fingerh. is distributed in the continental parts of central andeastern Europe (JALAS & SUOMINEN, 1979; AKEROYD, 1993). The western border ofits distribution is eastern France (Alsace and Lorrain) and the eastern border iseastern Siberia (the Lena river) and Manchuria (QUINGER, 1993). The northern bor-der is between 60° (in northern Scandinavia) and 70° north (in western Siberia). Incentral Europe its southern border spreads from the upper part of the Rhine valley,along the Main and the Danube rivers, northern Italy, Austria and across the south-ern Balkans, Besarabia and the Euro-Asian steppes to Manchuria (QUINGER, 1993).Distribution in former YugoslaviaRumex thyrsiflorus Fingerh. was recorded in former Yugoslavia (AKEROYD, 1993;JALAS & SUOMINEN, 1979). However, those data refer to two localities in southernSerbia (SLAVNI], 1972; TRINAJSTI], 1980) and one locality in Bosnia and Herzegovina(HAYEK, 1927; TRINAJSTI], 1980). Only recently was the species found in Slovenia inseveral locations (TRPIN & VREŠ, 1995; JOGAN, 1997) and in Croatia – between theSlovenia-Croatia border and the town of Vara`din (JOGAN, 1997). To be exact, thereis a herbarium specimen in Herbarium Croaticum (ZA) identified as R. acetosa L.which looks like R. thyrsiflorus Fingerh. collected by L. Rossi on June 12 1889 be-tween Mrkopalj and Begovo Razdolje in the Gorski Kotar region (Fig. 1). However,that specimen was not collected in such a way as to make possible reliable identifi-cation. The same is claimed by JOGAN (1997).Ecology and plant sociology of the speciesIn Central Europe Rumex thyrsiflorus Fingerh. grows on soils rich in nutrients inthe valleys of large rivers, most commonly by the road, railway and on levees anddikes (QUINGER, 1993). In the Rhine valley it was marked as the characteristic spe-cies of the Echio-Melilotetum association (MÜLLER, 1983). In other areas this specieswas also found in lowland dry grasslands (Arrhenatheretum elatioris), in the floristiccomposition of dry grasslands of the Mesobromion alliance, as well as in eutrophicgrasslands on sandy soils (QUINGER, 1993).NEW LOCALITIES IN CROATIAJOGAN (1997) predicted that the Rumex thyrsiflorus Fingerh. species would proba-bly occur at other localities in northern Croatia. This hypothesis was confirmed bya finding in the course of botanical research in numerous places in the surround-ings of \ur|evac, Kalinovac and Kloštar Podravski, some 80 km south-east of thelocations of the first findings in Croatia (Fig. 1, Tab. 1).454 Hr{ak, V.: New localities of the species Rumex thyrsiflorus Fingerh. in CroatiaTab. 1. MTB quadrants with localities of Rumex thyrsiflorus Fingerh.a) By the Bjelovar-\ur|evac road, at the edge of the road and the drainage canal bythe road and on both sides of the road and at the edges of the cornfields and oatfields at approximately 3 km from \ur|evac towards Bjelovar (July 4 1999, July21 1999; MTB 9968.3)b) On the \ur|evac-Osijek road, at the edge of the road and in the surroundinggrasslands (July 4 1999, July 21 1999; leg. & det. V. Hršak, MTB 9968.4)c) By the Kalinovac-Ferdinandovac road, by drainage canals and on the surround-ing grasslands (July 4 1999, July 21 1999; leg. & det. V. Hršak, MTB 9968.4)d) In the area of the \ur|eva~ki Peski botanical reserve together with the Rumexacetosa L. species (July 4 1999, July 21 1999; leg. & det. V. Hršak, MTB 9968.4)Nat. Croat. Vol. 8(4), 1999 455Fig. 1. The distribution of Rumex thyrsiflorus Fingerh. in Croatia ( – locations of firstrecords,  – new locations,  – Rossi’s questionable record)e) By the Kalinovac-Kloštar Podravski road in the area of Draganci, by the Dra-ganci-Kloštar Podravski road and \ur|evac-Osijek road near Kloštar Podravski(July 4 1999, July 21 1999; leg. & det. V. Hršak, MTB 9969.3, 0068.2)The species is very abundant in these locations, most commonly growing byroads and paths, as well as on grasslands further away from the roads, and in ru-deral habitats. In all those places the morphologically similar species Rumex acetosaL. appears very scantily or not at all.DISCUSSIONIt should be mentioned that in 1979 extensive plant-sociological and ecologicalresearch in grassland vegetation included plant sociological records both in theVara`din and \ur|evac vicinities, as well as near Kalinovac and Kloštar Podravski(ILIJANI] & ŠEGULJA, 1983). In the Kalinovac and Kloštar Podravski areas 12 recordsof grassland vegetation were made then, but none quoted Rumex thyrsiflorus Fin-gerh. – only Rumex acetosa L. There may be two reasons for this. The first is that Ru-mex thyrsiflorus Fingerh. entered the area only recently and became very abundantin appropriate habitats – so much so as to drive Rumex acetosa L. out. The other rea-son could be that Rumex thyrsiflorus Fingerh. was misidentified as Rumex acetosa L.due to great mutual similarities and lack of scrutiny while identifying similar andtaxonomically questionable species, which is often the case in extensive research inplant sociology. These two species have been misidentified before as well as de-scribed imprecisely with incorrect distinguishing characters quoted in various flo-ras, as pointed out by MELZNER (1965, 1978). The reliable distinguishing characterscan be found in JOGAN (1997) and new identification keys (AKEROYD, 1993;QUINGER, 1993, LAUBER & WAGNER, 1998)Thorough study of the distribution of Rumex thyrsiflorus Fingerh. and all otherspecies in Croatia has been hindered by the absence of systematic floristic mappingprojects of larger areas in the past or present. It is to be hoped that some future re-search, done by botanists who can differentiate between the two species, even if assporadic as described in this paper, will result in new data on the distribution ofRumex thyrsiflorus Fingerh. and prove that it is widespread much more than is be-lieved today.ACKNOWLEDGMENTI would like to thank Dr Toni Nikoli} for the distribution map.Received September 21, 1999REFERENCESAKEROYD, J. R., 1993: Rumex L. – In: TUTIN, T. G., BURGES, N. A., CHATER, A. O., EDMONDSON, J.R., HEYWOOD, V. H., MOORE, D. M., VALENTINE, D. H., WALTERS, S. M. & D. A. WEBB (eds.):Flora Europaea 1, 2-nd edition, 99–107. Cambridge University Press, Cambridge.456 Hr{ak, V.: New localities of the species Rumex thyrsiflorus Fingerh. in CroatiaHAYEK, A., 1927: Prodromus Florae peninsulae Balcanicae. Bd. 1. – Verlag des Repertoriums,Berlin-Dahlem.ILIJANI], LJ. & N. ŠEGULJA, 1983: Phytozönologische und ökologische Untersuchungen derGlatthaferwiesen in der Podravina (Nordkroatien). – Acta Bot. Croat. 42, 63–82.JALAS, J. & J. SUOMINEN (eds.), 1979: Atlas Florae Europaeae 4. – The Committee for Mappingthe Flora of Europe, Helsinki.JOGAN, N., 1997: Rumex thyrsiflorus Fingerh., a new species in the flora of Croatia. – Nat.Croat. 6(2), 285–290.LAUBER, K. & G. WAGNER, 1998: Flora Helvetica. – Verlag Paul Haupt, Bern-Stuttgart-Wien.MELZER, H., 1965: Neues zur Flora von Steiermark (VIII). – Mitt. Naturwiss. Vereines Steier-mark 95, 140–151.MELZER, H., 1978: Neues zur Flora von Steiermark, XX. – Mitt. Naturwiss. Vereines Steier-mark 108, 167–175.MÜLLER, TH., 1983: Artemisietea vulgaris. – In: OBERDORFER, E. (ed.): Süddeutsche Pflanzenge-sellschaften. 2. Aufl. Teil III. 135–277. Gustav Fischer Verlag, Stuttgart-New York.QUINGER, B., 1993: Rumex L. – In: SEBALD, O., SEYBOLD, S. & G. PHILLIPI: Farn- und Blütenpflan-zen Baden-Württembergs. Bd. 1. 543–576. Eugen Ulmer Verlag, Stuttgart (Hohenheim).SLAVNI], @., 1972: Rumex L. – In: JOSIFOVI], M. (ed.): Flora SR Srbije 3. 68–86. SANU, Beograd.TRINAJSTI], I., 1980: Rumex L. – In: TRINAJSTI], I. (ed.): Analiti~ka flora Jugoslavije. 1(6), 876–896.TRPIN, D. & B. VREŠ, 1995: Register flore Slovenije. – ZRC SAZU. Ljubljana.SA@ E TAKNova nalazišta vrste Rumex thyrsiflorus Fingerh. u HrvatskojV. HršakRumex thyrsiflorus Fingerh. je po prvi puta u Hrvatskoj prona|ena ujesen 1996. godine u okoliciVara`dina te u podru~ju izme|u Vara`dina i slovenske granice (JOGAN, 1997). Ova vrsta je ina~erasprostranjena u kontinentalnom djelu središnje i isto~ne Europe naj~eš}e u dolinama velikihrijeka uz ceste, putove, pruge, suhim i umjereno vla`nim travnjacima na hranjivima bogatom tlu(QUINGER, 1993). U djelu Flora Europaea navodi se za podru~je bivše Jugoslavije (AKEROYD, 1993)ali se taj podatak odnosi na nalaze u ju`noj Srbiji i Bosni i Hercegovini (HAYEK, 1927; SLAVNI],1972; TRINAJSTI], 1980). Neposredno prije nalaza u Hrvatskoj prona|ena je i u Sloveniji (TRPIN &VREŠ, 1995, JOGAN, 1997).Nova nalazišta u Hrvatskoj nalaze se u okolici \ur|evca, Kalinovca i Kloštra Podravskog oko80 km jugoisto~no od prvih lokaliteta. Na tim novim lokalitetima vrsta je obilno zastupljena i na-lazi se uz puteve i odvodne kanale, rubove polja ali i na livadama košanicama i Botani~kom rezer-vatu »\ur|eva~ki peski». Na tim mjestima sli~ne vrste Rumex acetosa L. naj~eš}e uop}e nema ili jeprisutna u vrlo malom broju.Budu}im botani~kim istra`ivanjima, uz uvjet sigurnog razlikovanja od vrste Rumex acetosa L.,mogu se o~ekivati daljnji podaci o podru~ju rasprostranjenja vrste Rumex thyrsiflorus Fingerh.Nat. Croat. Vol. 8(4), 1999 457

Nova nalazišta vrste Rumex thyrsiflorus Fingerh. u Hrvatskoj

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