B. Papp szerk.: Studia Botanica Hungarica 36. 2005 (Budapest, 2005)

Barina, Zoltán, Harmos, Krisztián; Schmotzer, András: Orobanche cernua in Hungary

Studia bot. hung. 36, pp. 5-11, 2005 OROBANCHE CERNUA IN HUNGARY Z. BARIN A

1

, K. HARMOS

2 and A. SCHMOTZER

2 'Department of Botany, Hungarian Natural History Museum H-1476 Budapest, Pf. 222, Hungary; E-mail: barina@bot.nhmus.hu 2

Biikk National Park Directorate, H-3304 Eger, Sánc u. 6, Hungary E-mail: schmotzer@bnp.kvvm.hu Discovery of a new member of the flora of Hungary, Orobanche cernua, is described with records of all occurrences that came to light to date. A brief overview of the distribution and taxonomic position of O. cernua deals with the species' relationship with O. cumana. Key words: Hungary, Orobanche cernua, O. cumana INTRODUCTION The genus Orobanche L. is represented in Hungary with 20 species. Due to their holoparasitic life style and host specificity their identification is not easy. In the recent past the survival of some rare members of the genus in Hungary has been confirmed (DÉNES 1994, KALAPOS and SZERÉNYI 1997), and new occurrences of other Orobanche species have become known (e.g. HOITSY and SZERÉNYI 1997, SCHMOTZER and VIDRA 1997, TÓTH 1999, BARINA 2001, 2003). Orobanche cernua Loefl. treated at species level is absent from the Hungarian botanical literature; only O. cumana Walk, is recorded as an agricultural weed. The discovery of Orobanche cernua in Hungary On 15 June 2004 Krisztián Harmos found a specimen of Orobanche near Bátonyterenye (place Gyulakeszi, Nógrád county) in budding state. The broomrape sponged on an Artemisia, which seemed, at first sight, to be A. santonicum L., previously unknown in the region. On 30 June Krisztián Harmos and Zoltán Barina visited the place, collected some additional specimens of both the broomrape and its host and took photos of them. It was a small broomrape with a glandular stem, violet corolla, bifid calyx segments and grew on Artemisia santonicum L. The broomrape was identified on the basis of KREUTZ (1995) and PUJADAS-SALVÀ and VELASCO (2000) and proved to be Orobanche cernua Loefl.: stout plant, dense inflorescence with numerous blue flowers; it grew on Artemisia. However, the related O. cumana is a slender plant with lax inflorescence, and grows on Helianthus annuus. Voucher specimens of O. Studia Botanica Hungarica 36, 2005 Hungarian Natural History Museum, Budapest