Abstract
Diploid hybrid plants (2n = 18) between sexual diploid cytotypes of Hieracium alpinum and H. umbellatum were found in the Ukrainian Eastern Carpathians. They were identified with H. × grofae Woł., originally used for the combination H. decipiens × H. umbellatum var. lactaris. As H. decipiens sensu Woł. (non Tausch) does not produce viable pollen grains and is most probably a polyploid apomict, it is unlikely to produce diploid hybrid plants with diploid H. umbellatum. Both parent species, Hieracium alpinum and H. umbellatum are also given by Wołoszczak from the original locality. Thus we conclude that H. × grofae is result of hybridization between H. alpinum and high mountain form of H. umbellatum. Hybrid plants are morphologically intermediate between the parent species, and moreover resemble closely or they are identical with the experimental hybrids of the same parent combination. Hybrids produce rather high amount of homogeneously sized pollen grains (values of standard deviation and coefficient of variation lower then upper limits for diploids — 3μm or 7.5%, respectively), and might probably serve as male parents in further crosses; on the other hand, they are fully seed-sterile. A lectotype of H. × grofae, a second proved nothotaxon in the genus Hieracium s.str., is designated. Localities of H. × grofae are located in subalpine belt of the Marmarosh Mts, the Svydovets’ Mts and the Horhany Mts (all in the Ukrainian Eastern Carpathians). Biotopes of hybrid plants usually represent secondary formed and disturbed pastures allowing close contact of altitudinally vicariant parent taxa.
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References
Chopyk, V. I. 1977. Vyznachnyk roslyn Ukrai’ns’kych Karpat. Naukova dumka, Kyi’v.
Chrtek, J. jun. 1997. Taxonomy of the Hieracium alpinum group in the Sudeten Mts., the West and the Ukrainian East Carpathians. Folia Geobot. Phytotax. 32: 69–97.
Chrtek, J. jun. & Marhold, K. 1998. Taxonomy of the Hieracium fritzei group (Asteraceae) in the Sudeten Mts and the West Carpathians. (Studies in Hieracium sect. Alpina II.). Phyton (Horn) 37: 181–217.
Chrtek, J. jun., Mráz, P. & Severa, M. 2004. Chromosome numbers in selected species of Hieracium s.str. (Hieracium subgen. Hieracium) in the Western Carpathians. Preslia 76: 119–139.
Dyer, A. F. 1963. The use of lacto-propionic orcein in rapid squash methods for chromosome preparation. Stain Technol. 38: 85–90.
Erdtman, G. 1960. The acetolysis method. A revised description. Svensk Bot. Tidskr. 54: 561–564.
Gustafsson, Å. 1946–1947. Apomixis in higher plants. Lunds Univ. Årsskr. 42–44: 1–370.
Holmgren, P. K., Holmgren, N. H. & Barnett, L. C. (eds) 1990. Index herbariorum. Part I: The herbaria of the world. Ed. 8. Regnum Veg. 120.
Kovalćikova, K. 2004. Velkost’ pel’u v blízko príbuzných rodoch Hieracium, Pilosella a Stenotheca (Asteraceae) [Pollen size in closely related genera Hieracium, Pilosella a Stenotheca (Asteraceae)]. — Diploma thesis, Institute of Biology and Ecology, P.J. Šafárik University, Košice.
Lövkvist, B. 1962. Chromosome and differentiation studies in flowering plants of Skőne, South Sweden. Bot. Not. 115: 263–287.
Májovský, J., Murín, A., Feráková, V., Hindáková, M., Schwarzová, T., Uhríková, A., Váchová, M. & Záborský, J. 1987. Karyotaxonomický prehl’ad flóry Slovenska. Veda, Bratislava.
Malynovs’kyj, K. A. 1980. Roslynnist’ vysokohir’ja Ukrai’ns’kych Karpat. Naukova dumka, Kyi’v.
Merxmüller, H. 1975. Diploide Hieracien. Anal. Inst. Bot. Cavanilles 32: 189–196.
Mosyakin, S. L. & Fedoronchuk, M. M. 1999. Vascular plants of Ukraine. A nomenclatural checklist. Institute of Botany, NASU, Kiev.
Mráz, P. 2001. Chromosome numbers in selected species of Hieracium sect. Alpina (Asteraceae) from Central and Eastern Europe. Folia Geobot. 36: 321–332.
Mráz, P. 2003. Mentor effects in the genus Hieracium s. str. (Compositae, Lactuceae). Folia Geobot. 38: 345–350.
Mráz, P., Chrtek, J. jun., Fehrer, J. & Plačková, I. 2005. Rare recent hybridization in Hieracium s.str. — evidence from morphology, allozymes and chloroplast DNA. Pl. Syst. Evol. 255: 177–192.
Mráz, P., Kovalčíková, K. & Marhold, K. 2002. Pollen shapes and size in Hieracium and related genera, p. 27. In: Gutterman, W. (ed.), Contribution abstracts (lectures and posters) from 6thHieracium Workshop, Hirschegg/Kleinwalsertal (Österreich), Institut für Botanik der Universität Wien, Wien.
Mráz, P. & Paule, J. 2003. Experimental hybridization in the genus Hieracium s.str. In: Hieracium workshop, Křivoklát, Czech Republic, 28 May–1 June 2003, Institute of Botany, Academy of Sciences of the Czech Republic, Protected landscape area “Křivoklátsko”. [sine pago].
Mráz, P. & Paule, J. 2006. Experimental hybridization in the genus Hieracium s.str. (Asteraceae): crosses between diploid taxa. Preslia 78: 1–26.
Mráz, P. & Tomčíková, D. 2004. Experimental hybridization in the genus Hieracium s. str. — crosses between diploid H. umbellatum and triploid H. sabaudum. — Thaiszia 14(Suppl. 1): 15–16.
Nägeli von, C. & Peter, A. 1885. Die Hieracien Mittel-Europas. Monographische Bearbeitung der Piloselloiden mit besonderer Berücksichtigung der mitteleuropäischen Sippen. R. Oldenbourg, München.
Paule, J. 2004. Experimentálne kríženie v rode Hieracium. Diploma thesis, P.J. Šafárik University, Košice, 64 pp.
Prokudin, Yu. N. 1987. Opredelitel’ vysshikh rasteniℝ Ukrainy. Naukova dumka, Kiev.
Royal Botanical Gardens Kew. 1993. Index Kewensis on compact disc. Oxford University Press, Oxford.
Schuhwerk, F. 1996. Published chromosome counts in Hieracium. URL [http://www.botanischestaatssammlung.de/index/people_index.html].
Sennikov, A. N. 2003. Hieracium L., pp. 103–144. In: Kuusk, V., Tabaka, L., Jankevičien, R. (eds), Flora of the Baltic countries. Compendium of vascular plants 3, Institute of Zology and Botany, Tartu.
Shlyakov, R. N. 1989. Rod 32. yastrebinka — Hieracium, pp. 140–300. In: Tzvelev, N. N. (ed.), Flora Evropejskoj chasti SSSR 8 [Flora of the European part of the U.S.S.R.], Nauka, Leningrad.
Sterk, A. A., den Nijs, J. C. M. & Kreune W. 1982. Sexual and agamospermous Taraxacum species in the Netherlands. Acta Bot. Neerl. 31: 227–237.
Turesson, G. 1922. The genotypical response of the plant species to the habitat. Hereditas 3: 211–350.
Üksip, A. Y. 1960. Yastrebinka — Hieracium L., pp. 1–732. In: Shishkin, B. K. & Bobrov, E. G. (eds), Flora SSSR 30, Izdatel’stvo Akademii Nauk SSSR, Moskva, Leningrad.
Wołoszczak, E. 1892. Materyjały do flory gór Łomnickich. Spraw. Kom. Fizjogr. 27: 125–156.
Zahn, K. H. (1921–1923). Compositae — Hieracium. In: Engler, A. (ed.), Das Pflanzenreich IV/280, Wilhelm Engelmann, Leipzig.
Zahn, K. H. (1930–1939). Hieracium. In: Graebner P. fil. (ed.), Synopsis der mitteleuropäischen Flora 12(2–3) + Registerband, Gebrüder Borntraeger, Leipzig.
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Chrtek, J., Mráz, P. & Sennikov, A.N. Hieracium × grofae — a rediscovered diploid hybrid from the Ukrainian Carpathians. Biologia 61, 365–373 (2006). https://doi.org/10.2478/s11756-006-0066-0
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DOI: https://doi.org/10.2478/s11756-006-0066-0