Abstract
Jacobaea othonnae (M. Bieb.) C.A. Mey., formerly Senecio othonnae M. Bieb., is distributed from the Balkan Peninsula through Anatolia up to the Caucasus and the northern Iranian mountains. On the basis of the variability of its indumentum, its subdivision into three subspecies is proposed. A new subsp. adamsii is described from the eastern part of the distribution range, and a new combination (subsp. anomala) is established for a subspecies narrowly distributed in Greece. Lectotypes for Senecio othonnae, Cacalia anomala and Senecio rariflorus are designated.
References
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<p>Pelser, P.B., Veldkamp, J.-F. & Meijden, R. van der (2006) New combinations in <em>Jacobaea </em>Mill. (Asteraceae – Senecioneae). <em>Compositae Newsletter</em> 44: 1–11. [https://www.biodiversitylibrary.org/item/48846#page/3/mode/1up]</p>
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<p>Schultz Bipontinus, C.H. (1845) Ueber einige mit <em>Senecio</em> zu verbindende Gattungen. <em>Flora</em> 28: 497–500.</p>
<p>Shetekauri, S. & Kuthatheladze, L. (2017) Diversity, Ecotopology and Hypsometric Distribution of the Endemic Flora in High-Mountain Phytolandscapes of the Caucasus. <em>Earth Sciences </em>6 (5-1): 38–48.</p>
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<p>Sofieva, R.M. (1961) <em>Senecio</em> L.<em> In: </em>Karjagin, I.I. (Ed.) <em>Flora Azerbajdzhana</em>, vol. 8. Academy of Sciences of the Azerbaijan SSR, Baku, pp. 328–344. [In Russian]</p>
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<p>Strid, A. & Strid, B. (Eds.) (2013) <em>Sibthorp & Smith Flora Graeca</em>, volumes 9–10, 1837–1840. Annotated Re-Issue. Koeltz Scientific Books, Königstein, 353 pp.</p>
<p>Teofilovski, A. (2011) <em>Contributions to the flora of the Republic of Macedonia</em>. Private print, Skopje, 142 pp. [In Macedonian]</p>
<p>Thiers, B. (2019 [continuously updated]) <em>Index Herbariorum: A global directory of public herbaria and associated staff</em>. New York botanical Garden’s Virtual Herbarium. Online. Available from: http://sweetgum.nybg.org/science/ih/ (accessed 1 February 2020)</p>
<p>Willdenow, C.L. (1809) <em>Enumeratio plantarum Horti Regii Berolinensis, continens descriptiones omnium vegetabilium in horto dicto cultorum</em>. In taberna libraria scholae realis, Berlin, 1099 pp. https://doi.org/10.5962/bhl.title.165500</p>
<p>Assyov, B., Petrova, A., Dimitrov, D. & Vassilev, R. (2006) <em>Conspectus of the vascular flora of Bulgaria</em>. Ed. 3. Bulgarian Biodiversity Foundation, Sofia, 452 pp.</p>
<p>Authier, P. (2014) Report 4.<em> In: </em>Vladimirov, V. & Tan, K. (comp.), New floristic records in the Balkans: 24. <em>Phytologia Balcanica</em> 20 (1): 117–122.</p>
<p>Avetisian, V.E. (2009) <em>Senecio</em> L.<em> In: </em>Takhtajan, A.L. (Ed.) <em>Flora Armenii</em>, vol. 9. Koeltz, Havlíčkův Brod, 676 pp. [In Russian]</p>
<p>Barina, Z. (Ed.) (2017) <em>Distribution atlas of vascular plants in Albania</em>. Hungarian Natural History Museum, Budapest, 492 pp.</p>
<p>Bieberstein, F.A.M. von (1808) <em>Flora taurico-caucasica exhibens stirpes phaenogamas in Chersoneso Taurica et regionibus caucasicis sponte crescents</em>, vol. 2. Typis Academicis, Kharkov, 478 pp. https://doi.org/10.5962/bhl.title.10825</p>
<p>Candolle, A.P. de (1838) <em>Prodromus systematis naturalis regni vegetabilis</em>, vol. 6. Treuttel & Würtz, Paris, 687 pp.</p>
<p>Czerepanov, S.K. (1995) <em>Vascular plants of Russia and adjacent states (the former USSR)</em>. Cambridge University Press, Cambridge, 516 pp.</p>
<p>Chater, A.O. & Walters, S.M. (1976) <em>Senecio</em> L.<em> In: </em>Tutin, T.G., Heywood, V.H., Burges, N.A., Moore, D.M., Valentine, D.H., Walters, S.M. & Webb, D.A. (Eds.) <em>Flora Europaea</em>, vol. 4. Cambridge University Press, Cambridge, pp. 191–205. http://doi.org/10.5281/zenodo.293764</p>
<p>Dimopoulos, P., Raus, Th., Bergmeier, E., Constantinidis, Th., Iatrou, G., Kokkini, S., Strid, A. & Tzanoudakis, D. (2013) <em>Vascular plants of Greece: Annotated checklist</em>. Botanic Garden and Botanical Museum Berlin-Dahlem, Berlin & Hellenic Botanical Society, Athens, 372 pp. [<em>Englera</em> 31]</p>
<p>Edmondson, J.R. & Lack, H.W. (1977) Turkish and Caucasian collections of C. Koch I. Turkey. <em>Notes from the Royal Botanic Garden Edinburgh</em> 35: 321–344.</p>
<p>Gagnidze, R.I. & Gagua, Ch.K. (2007) <em>Flora Georgiae</em>, vol. 15. Ed. 2. Universali, Tbilisi, 562 pp. [In Georgian]</p>
<p>Gajič, M. (1975) Asteraceae Dumort.<em> In: </em>Josifovic, M. (Ed.) <em>Flora SR Serbie</em>, vol. 7. Serbian Academy of Science and Arts, Belgrade, pp. 1–465. [In Serbian]</p>
<p>Greuter, W. (2006+) Compositae (pro parte majore).<em> In: </em>Greuter, W. & Raab-Straube, E. von (Eds.) <em>Compositae. Euro+Med Plantbase—the information resource for Euro-Mediterranean plant diversity</em>. https://doi.org/10.3372/wi.36.36206</p>
<p>Hoffmann, G.F. (1808) <em>Hortus Mosquensis</em>. Typ. Caes. Univ., Mosqua, 16 pp.</p>
<p>Koch, K. (1843) <em>Reise durch Rußland nach dem kaukasischen Isthmus in den Jahren 1836, 1837 und 1838</em>, vol. 2. J.G. Cotta, Stuttgart & Tübingen, 559 pp.</p>
<p>Lack, H.W. (1978) The Turkish and Caucasian collections of C. Koch, II. Caucasia. <em>Notes from the Royal Botanic Garden Edinburgh</em> 37: 79–94.</p>
<p>Lack, H.W. (1997) The Sibthorpian Herbarium at Oxford – guidelines for its use. <em>Taxon</em> 46: 253–263. https://doi.org/10.2307/1224095</p>
<p>Ledebour, C.F. von (1845) <em>Flora Rossica</em>, vol. 2 (2,6). E. Schweizerbart, Stuttgart, pp. 463–718. https://doi.org/10.5962/bhl.title.6606</p>
<p>Lindley, J. (1839) <em>Flora Graeca</em>, vol. 9 (2). R. Taylor, London, pp. 39–77, pl. 851–900.</p>
<p>Mabberley, D.J. (1982) William Roxburgh’s Botanical Description of a New Species of <em>Swietenia</em> (Mahogany) and Other Overlooked Binomials in 36 Vascular Plant Families. <em>Taxon</em> 31 (1): 65–73. https://doi.org/10.2307/1220591</p>
<p>Matthews, V.A. (1975) <em>Senecio</em> L.<em> In: </em>Davis, P.H. (Ed.) <em>Flora of Turkey and the East Aegean Islands</em>, vol. 5. Edinburgh University Press, pp. 145–168.</p>
<p>Menitsky, Yu.L. & Konechnaya, G.Yu. (2008) <em>Senecio</em> L.<em> In: </em>Takhtajan, A.L. (Ed.) <em>Conspectus florae Caucasi</em>, vol. 3 (1). KMK Scientific Press, Saint-Petersburg & Moscow, pp. 217–226. [In Russian]</p>
<p>Meyer, C.A. (1831) <em>Verzeichnis der Pflanzen, welche während der in den Jahren 1829 und 1830 unternommenen Reise im Caucasus und in den Provinzen am westlichen Ufer des Caspischen Meeres gefunden und eingesammelt worden sind</em>. Kaiserl. Akademie der Wissenschaften, Saint-Petersburg, 241 pp.</p>
<p>Nordenstam, B. (1989) <em>Iranecio</em>.<em> In: </em>Rechinger, K.H. (Ed.) <em>Flora Iranica</em>, vol. 164. Akademischer Druck- u. Verlagsanstalt, Graz, pp. 53–59.</p>
<p>Pelser, P.B, Hof, K. van den, Gravendeel, B. & Meijden, R. van der (2004) The Systematic Value of Morphological Characters in <em>Senecio</em> sect. <em>Jacobaea</em> (Asteraceae) as Compared to DNA Sequences. <em>Systematic Botany</em> 29 (3): 790–805. https://doi.org/10.1600/0363644041744482</p>
<p>Pelser, P.B., Veldkamp, J.-F. & Meijden, R. van der (2006) New combinations in <em>Jacobaea </em>Mill. (Asteraceae – Senecioneae). <em>Compositae Newsletter</em> 44: 1–11. [https://www.biodiversitylibrary.org/item/48846#page/3/mode/1up]</p>
<p>Poiret, J.L.M. (1817) <em>Encyclopédie méthodique. Botanique</em>, Suppl. 5. H. Agasse, Paris, 780 pp.</p>
<p>Rohlena, J. (1941–1942) Conspectus florae Montenegrinae. <em>Preslia</em> 22–23: 1–506.</p>
<p>Schultz Bipontinus, C.H. (1845) Ueber einige mit <em>Senecio</em> zu verbindende Gattungen. <em>Flora</em> 28: 497–500.</p>
<p>Shetekauri, S. & Kuthatheladze, L. (2017) Diversity, Ecotopology and Hypsometric Distribution of the Endemic Flora in High-Mountain Phytolandscapes of the Caucasus. <em>Earth Sciences </em>6 (5-1): 38–48.</p>
<p>Shishkin, B.K. (1961) <em>Senecio</em> L.<em> In: </em>Shishkin, B.K. & Bobrov, E.G. (Eds.) <em>Flora of the URSS</em>, vol. 26. Academy of Sciences of the SSSR, Moscow & Leningrad, pp. 699–788. [In Russian]</p>
<p>Smith, J.E. (1813) <em>Florae Graecae prodromus</em>, vol. 2 (1). R. Taylor et Socii, London, pp. 1–210. https://doi.org/10.5962/bhl.title.6653</p>
<p>Sofieva, R.M. (1961) <em>Senecio</em> L.<em> In: </em>Karjagin, I.I. (Ed.) <em>Flora Azerbajdzhana</em>, vol. 8. Academy of Sciences of the Azerbaijan SSR, Baku, pp. 328–344. [In Russian]</p>
<p>Sprengel, A. (1826) <em>Caroli Linnaei Systema vegetabilium</em>, vol. 3. Sumtibus Librariae Dieterichianae, Göttingen, 936 pp.</p>
<p>Strid, A. & Strid, B. (Eds.) (2013) <em>Sibthorp & Smith Flora Graeca</em>, volumes 9–10, 1837–1840. Annotated Re-Issue. Koeltz Scientific Books, Königstein, 353 pp.</p>
<p>Teofilovski, A. (2011) <em>Contributions to the flora of the Republic of Macedonia</em>. Private print, Skopje, 142 pp. [In Macedonian]</p>
<p>Thiers, B. (2019 [continuously updated]) <em>Index Herbariorum: A global directory of public herbaria and associated staff</em>. New York botanical Garden’s Virtual Herbarium. Online. Available from: http://sweetgum.nybg.org/science/ih/ (accessed 1 February 2020)</p>
<p>Willdenow, C.L. (1809) <em>Enumeratio plantarum Horti Regii Berolinensis, continens descriptiones omnium vegetabilium in horto dicto cultorum</em>. In taberna libraria scholae realis, Berlin, 1099 pp. https://doi.org/10.5962/bhl.title.165500</p>