Matskási István (szerk.): A Magyar Természettudományi Múzeum évkönyve 101. (Budapest 2009)

Somlyay, L.: Occurrence of Chamaesyce glyptosperma, and a survey of the genus Chamaesyce (Euphorbiaceae) in Hungary

Occurrence of Chamaesyceglyptosperma in Hungary (Euphorbiaceae) 29 (BÁNÓ, 1951, see PRISZTER 1953), Budakalász (KÁRPÁTI 1954), Villány (NAGY, 1957, see NAGY 1959) and Csányoszró (VÖRÖSS, 1966, see VÖRÖSS 1968) are also related to railway lines. The first Hungarian locality of C. nutans not adjacent to railway was discovered by ISTVÁN TERTS in a stubble field near Battonya village in the southeastern part of Hungary (KÁRPÁTI 1950). It is noteworthy that all known localities of C. nutans unrelated to railway lines are restricted exclusively to the southern regions of Hungary: These still unpublished localities are in Békés county (TERTS, 1950, ZSÁK, 1959, RANKOVSZKY, 1964, FODOR, 1965), Csongrád county (PAPP, 1965), Bács-Kiskun county (JEANPLONG, 1952), Tolna county (GALLAI, 1965) and Somogy county (RADA, 1966). Considering all known Hungarian records, one can not agree with SOÓ (1980: 352) who stated that C. nutans occurrences were mainly ("praecipue") located at the margins of the Hungarian Mountains. On the contrary, the bulk of records come from lowland localities in South Hungary. Furthermore, the sporadic central and North Hungarian records are always bound to railway referring to casual occurrences, while the south Hungarian localities are known mainly from agricultural lands and ruderal places (unrelated to railway), which may refer to former naturalization ot this species in the region. It is remarkable that no authentic new record of C. nutans has been published in Hungary in the last 50 years (see SOLYMOSI 2002). This fact may partly be ascribed to overlooking of the species, however, may also be the result of chemicals applied in Hungarian agriculture from the 1960s. * Acknowledgements - I am very grateful to ZSUZSANNA SZABÓ, BÁLINT CSERTÁN and JÁNOS CsiKY for checking Chamaesyce specimens stored in the herbarium of JPU. I express my gratitude to ISTVÁN ISÉPY, GÁBOR SRAMKÓ, ZOLTÁN TUBA and LÁSZLÓ UDVARDY for the access to the collections under their supervision and help while working in the herbaria of BPU, DE, SZIE and CORV. I also thank LAJOS BALOGH (Savaria Museum, Szombathely), PÉTER CSONTOS (Eötvös Loránd University, Budapest), GÉZA FACSAR (CORV) and GÉZA KOSA (Vácrátót Botanical Garden) for their invaluable help during my studies. Annls hist.-nat. Mus. natn. hung. 101, 2009