Abstract
Hieracium caesnense is a new apomictic, tetraploid (x = 9) species combining the morphological features of H. pilosum and H. lanceolatum. It grows in relict habitats in the Ţăsna Gorge in the Mehedinți Mountains, southern Romania.
References
- Bräutigam, S. (1992) Hieracium L. In: Meusel, H. & Jäger, E.J. (Eds.) Vergleichende Chorologie der zentraleuropäischen Flora, vol. 3. G. Fischer, Jena, pp. 325–333.
- Candolle, A.P. de (1838) Prodromus systematics naturalis regni vegetabilis, sive, Enumeratio contracta ordinum specieruque plantarum huc usque cognitarum, juxta methodi naturalis, normas digesta, vol. 7. Treuttel & Würtz, Paris, 801 pp. https://doi.org/10.5962/bhl.title.286
- Degen, A. von (1901) Die Flora von Herculesbad. Eine Vegetations-Skizze. Pallas, Budapest, 29 pp.
- Georgescu, C.C. (1936) Neue Beiträge zur Systematik der Schwarzföhre. Repertorium specierum novarum regni vegetabilis 41: 181–188. https://doi.org/10.1002/fedr.4870412605
- Grabowska-Joachimiak, A. & Szeląg, Z. (2026) Chromosome numbers in Hieracium (Asteraceae) from Central and Southeastern Europe X. Acta Biologica Cracoviensia Series Botanica 68 (in press).
- Gremli, A. (1881) Excursionsflora für die Schweiz, ed. 4. J.J. Christen, Aarau, i–xxiv, pp. 1–486.
- Heuffel, J. (1858) Enumeratio Plantarum in Banatu Temesiensis sponte crescentium et frequentius cultarum. Verhandlungen der Kaiserlichköniglichen Zoologisch-Botanischen Gesellschaft in Wien 8: 39–240. https://doi.org/10.5962/bhl.title.9873
- Linnaeus, C. (1753) Species plantarum. L. Salvius, Holmia, 1200 pp. https://doi.org/10.5962/bhl.title.669
- Musiał, K., Janas, A. & Szeląg, Z. (2017) Chromosome numbers in Hieracium (Asteraceae) from Central and Southeastern Europe III. Acta Biologica Cracoviensia Series Botanica 59 (2): 83–87. https://doi.org/10.1515/abcsb-2017-0013
- Nyárády, E.I. (1965) Hieracium L. In: Nyárády, E.I. (Ed.) Flora Republicii Populare Romîne, vol. 10. Editura Academiei Republicii Populare Romîne, Bucureşti, pp. 214–746.
- Pax, F. (1908) Grundzüge der Pflanzenverbreitung in den Karpathen 2. In: Engler, A. & Drude, O. (Eds.) Die Vegetation der Erde, vol. 10. W. Engelmann, Leipzig, [i]–vi, pp. 1–321. [https://www.biodiversitylibrary.org/page/18134269]
- Resmeriţa, I. (1972) Vegetaţia lemnoasă din valea Ţesnei (jud. Mehedinţi). Studii şi Cercetări de Biologie, Seria Botanică 24 (4): 277–293. [https://www.ibiol.ro/studii/botanica/Volumul%2024/Stud.cerc.biol.-bot._1972_24_4.pdf]
- Villars, D. (1788) Histoire des Plantes de Dauphiné: Contenant une Préface Historique, un Dictionnaire des Termes de Botanique, les Classes, les Familles, les Genres, & les Herborisations des Environs de Grenoble, de la Grande Chartreuse, de Briançon, de Gap & de Montelimar, vol. 3/1. Société Royale de Médecine, Paris, [i]–xxxii, pp. 1–580. [https://www.biodiversitylibrary.org/page/50333604]