Abstract
On the basis of new gatherings at the type locality, Taraxacum primigenium was evaluated taxonomically. Its achenes differ substantially from the protologue description that is based on achenes of T. assemanii. Taraxacum primigenium, also on the basis of an nrDNA analysis, is close to T. sect. Piesis, and represents a narrow endemic confined to the Lalezar Mts., SE Iran. Taraxacum assemanii, newly typified, is known from mountains of SE Anatolia and Lebanon, and from the Zagros in SW Iran. It is characterized by large, almost or totally smooth achenes with indistinct cone and a very gradual achene body/beak transition, a thick short beak and a short, slightly brownish pappus. It represents a single member of a newly described section, T. sect. Pristina. The name of T. sect. Primigenia, although with a diagnosis corresponding to the characters of T. assemanii, is to be interpreted according to its type, T. primigenium, and is understood as a synonym of T. sect. Piesis. Another taxon evaluated, T. cylleneum, endemic to several mountain ranges in of Peloponnesos, Greece, is similar to T. primigenium, and very close to the core taxa of T. sect. Piesis. All the species dealt with reproduce sexually.
References
<p>Boissier, P.E. (1875) <em>Flora orientalis</em>, vol. 3. H. Georg, Genève, Basel & Lyon, 1033 pp.</p>
<p>Candolle, A.P. de (1838) <em>Prodromus systematis naturalis regni vegetabilis</em>, vol. 7 (1). Treuttel & Würtz, Paris, 330 pp. [https://www.biodiversitylibrary.org/item/7156#page/5/mode/1up]</p>
<p>Christiansen, M.P. (1942) <em>Taraxacum</em>. <em>In:</em> Grøntved, J., Paulsen, O. & Sørensen, T. (eds.) <em>The Botany of Iceland</em>, vol. 3 (3). Einar Munksgaard, Copenhagen, pp. 229–343 + 44 Plates.</p>
<p>Dimopoulos, P. & Georgiadis, T. (1992) Floristic and phytogeographical analysis of Mount Killini (NE Peloponnisos, Greece). <em>Phyton (Horn)</em> 32: 283–305.</p>
<p>Doll, R. (1982) Grundriß der Evolution der Gattung <em>Taraxacum</em> Zinn. <em>Feddes Repertorium</em> 93: 481–624. https://onlinelibrary.wiley.com/doi/pdf/10.1002/fedr.19820930702</p>
<p>Doll, R. (2019) <em>Taraxacum</em> H.G.Weber ex Wiggers. <em>In:</em> Ghazanfar, S.A., Edmondson, J.R. & Hind, J.N. (eds.) <em>Flora of Iraq</em>, vol. 6. Royal Botanic Gardens, Kew, pp. 172–185.</p>
<p>Fischer, F.E.L. (1808) <em>Catalogue du jardin des plantes, de S. E. Monsieur le Comte Aléxis de Razoumoffsky ... à Gorenki près de Moscou</em>. [Moskva], 143 pp.</p>
<p>Fürnkranz, D. (1969) Eine neue mediterrane Reliktart der Gattung <em>Taraxacum</em>. <em>Österreichische Botanische Zeitschrift</em> 116: 149–156.</p>
<p>Ge, X.J., Kirschner, J. & Štěpánek, J. (2011) <em>Taraxacum</em> F.H.Wiggers. <em>In:</em> Wu, Z.Y., Raven, P.H. & Hong, D.Y. (eds.) <em>Flora of China</em>, vols. 20–21. Missouri Botanical Garden Press, St. Louis & Science Press, Beijing, pp. 270–325. [http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=10074]</p>
<p>Güner, A., Aslan, S., Ekim, T., Vural, M., Babaç, M.T. (Eds.) (2012) <em>Türkiye Bitkileri Listesi. Damarlý Bitkiler.</em> Nezahat Gökyiðit Botanik Bahçesi ve Flora Araþtýrmalarý Derneði Yayýný, Ýstanbul, 1290 pp.</p>
<p>Gürdal, B., Štěpánek, J., Zeisek, V., Kirschner, J. & Özhatay, N. (2018) What is and what is not <em>Taraxacum bithynicum </em>(Compositae, Crepidinae). <em>Phytotaxa </em>373 (3): 197–210. https://doi.org/10.11646/phytotaxa.373.3.3</p>
<p>Handel-Mazzetti, H. (1907) <em>Monographie der Gattung Taraxacum</em>. F. Deuticke, Leipzig & Wien, xi + 175 pp. + 7 plates. https://bibdigital.rjb.csic.es/records/item/10236</p>
<p>Handel-Mazzetti, H. (1923) Nachtraege zur Monographie der Gattung <em>Taraxacum</em>. <em>Oesterreichische Botanische Zeitschrift </em>72: 254–275. https://doi.org/10.1007/BF01660056</p>
<p>Harvey, W.H. (1865) <em>Flora Capensis; being a systematic description of the plants of the Cape Colony, Caffraria, & port Natal</em>. Hodges, Smith, and Co., Dublin, & I. C. Juta, Capetown, 633 pp.</p>
<p>Haussknecht, H.C. (1895) Symbolae ad floram graecam—Aufzählung der im Sommer 1885 in Griechenland gesammelten Pflanzen. <em>Mittheilungen des Thüringischen Botanischen Vereins</em>, N. F. 7: 25–64.</p>
<p>Heller, D. & Heyn, C.C. (1993) <em>Conspectus Florae Orientalis</em>, Fasciculus 8. The Israel Academy of Sciences and Humanities, Jerusalem, 174 pp.</p>
<p>Heuffel, J. (1854) Ueber die Pflanzengattung <em>Taraxacum</em> Hall. und ein neues aus derselben geschledenes Genus: <em>Diószegia. Zeitschrift für Natur- und Heilkunde in Ungarn</em> 5 (1854): 177–178.</p>
<p>Heuffel, J. (1858) Enumeratio plantarum in Banatu Temesiensi sponte crescentium et frequentius cultarum. <em>Verhandlungen der kaiserlich-königlichen zoologisch-botanischen Gesellschaft in Wien</em> 8: 39–240.</p>
<p>Hornemann, J.W. (1819) <em>Enumeratio horti botanici Hafniensis, supplementum. </em>J.F. Schultz, Copenhagen, 172 pp. [https://www.biodiversitylibrary.org/item/7156#page/5/mode/1up]</p>
<p>Humphries, C., Araújo, M., Williams, P., Lampinen, R., Lahti, T. & Uotila, P. (1999) Plant diversity in Europe: Atlas Florae Europaeae and WORLDMAP. <em>Acta Botanica Fennica</em> 162: 11–21.</p>
<p>Huson, D.H. & Bryant, D. (2006) Application of Phylogenetic Networks in Evolutionary Studies. <em>Molecular Biolology & Evolution</em> 23 (2): 254–267. https://doi.org/10.1093/molbev/msj030</p>
<p>Jafari, E. (2013) <em>Taraxacum</em> Weber. <em>In:</em> Safavi, S.R., Naseh, Y., Jafari, E., Tavakoli, Z & Heidarnia, N. (eds.) <em>Flora of Iran</em>, vol. 77. Ministry of Jihad-e-Agriculture, Tehran, 85–158 & 493–500 pp.</p>
<p>Kirschner, J., Záveská Drábková, L., Štěpánek, J. & Uhlemann, I. (2015) Towards a better understanding of the <em>Taraxacum</em> evolution (Compositae-Cichorieae) on the basis of nrDNA of sexually reproducing species. <em>Plant Systematics & Evolution</em> 301: 1135–1156.</p>
<p>Kirschner, J. & Štěpánek, J. (1987) Again on the sections in <em>Taraxacum</em> (Cichoriaceae). <em>Taxon</em> 36: 608–617. https://doi.org/10.2307/1221855</p>
<p>Kirschner, J. & Štěpánek, J. (1987) Again on the sections in <em>Taraxacum</em> (Cichoriaceae). <em>Taxon</em> 36: 608–617.</p>
<p>Kirschner, J. & Štěpánek, J. (1993) The genus <em>Taraxacum</em> in the Caucasus. 1, Introduction. 2, The section <em>Porphyrantha</em>. <em>Folia Geobotanica Phytotaxonomica</em> 28: 295–320.</p>
<p>Kirschner, J. & Štěpánek, J. (1997) A nomenclatural checklist of supraspecific names in <em>Taraxacum</em>. <em>Taxon</em> 46: 87–98. https://doi.org/10.2307/1224294</p>
<p>Kirschner, J. & Štěpánek, J. (1999) A revision of <em>Taraxacum</em> sect. <em>Piesis</em> (Compositae). <em>Folia Geobotanica</em> 33: 391–414.</p>
<p>Kirschner, J. & Štěpánek, J. (2004) New sections in <em>Taraxacum</em>. <em>Folia Geobotanica et Phytotaxonomica</em> 39: 259–274.</p>
<p>Kirschner, J. & Štěpánek, J. (2017) A revision of <em>Taraxacum</em> sect. <em>Atrata</em>, a dandelion group centred in the Middle Asia, and the problem of <em>Taraxacum brevirostre</em>. <em>Phytotaxa</em> 305 (4): 225–261. http://dx.doi.org/10.11646/phytotaxa.305.4.1</p>
<p>Kirschner, J., Gürdal, B., Štěpánek, J. & Zeisek, V. (2021) <em>Taraxacum mirabile</em>, an enigmatic sexual halophilous endemic dandelion, represents a new section. <em>Phytotaxa</em> 489 (1): 49–64. https://doi.org/10.11646/phytotaxa.489.1.4</p>
<p>Kirschner, J., Štěpánek, J. & Greuter, W. (1998) <em>Taraxacum</em> F.H.Wigg. <em>In:</em> Greuter, W. & Raab-Straube, E. von (eds.) <em>Med-Checklist, A critical inventory of vascular plants of the circum-mediterranean countries</em>, vol. 2. Optima Secretariat, Palermo, pp. 739–775.</p>
<p>Kirschner, J., Štěpánek, J. & Klimeš, L. (2006) Dandelions in Central Asia: A revision of <em>Taraxacum</em> section <em>Leucantha</em>. <em>Preslia</em> 78: 27–65. [http://www.preslia.cz/P061CKir.pdf]</p>
<p>Kirschner, J., Štěpánek, J., Klimeš, L., Dvorský, M., Brůna, J., Macek, M. & Kopecký, M. (2020) The <em>Taraxacum</em> flora of Ladakh, with notes on the adjacent regions of the West Himalaya. <em>Phytotaxa</em> 457 (1): 1–409. https://doi.org/10.11646/phytotaxa.457.1.1</p>
<p>Kirschner, J., Štěpánek, J., Mes, T.H.M., den Nijs, J.C.M., Oosterveld, P., Štorchová, H. & Kuperus, P. (2003) Principal features of the cpDNA evolution in <em>Taraxacum</em> (Asteraceae, Lactuceae): a conflict with taxonomy. <em>Plant Systematics and Evolution</em> 239: 231–255. https://doi.org/10.1007/s00606-003-0002-5</p>
<p>Ledebour, C.F. (1830) <em>Icones plantarum novarum vel imperfecte cognitarum floram rossicam, imprimis altaicam, illustrantes</em>, vol. 2. I. Deubner, Rigae, 28 pp., plates 101–200. https://doi.org/10.5962/bhl.title.46626</p>
<p>Ledebour, C.F. (1846) <em>Flora rossica sive enumeration plantarum in totius Imperii rossici [...] observatarum</em>, vol. 2. E. Schweizerbart, Stuttgartiae, 937 pp. [https://www.biodiversitylibrary.org/item/29478#page/7/mode/1up]</p>
<p>Lindberg, H. (1932) Itinera mediterranea [...]. <em>Acta Societatis Scientiarum Fennicae</em>, nova series B 1 (2): 1–178 + 32 Plates.</p>
<p>Maire, R. (1936) Contribution à l‘étude de la flore de l‘Afrique du Nord. Fascicule 24. <em>Bulletin de la Société d’Histoire Naturelle de l’Afrique du Nord</em> 27: 241–270.</p>
<p>Meikle, R.D. (1983) Additions to the Flora of Cyprus. <em>Annales Musei Goulandris</em> 6: 87–94.</p>
<p>Mouterde, P. (1966) <em>Nouvelle flore du Liban et de la Syrie</em>, vol. 1. Edition de l‘Imprimerie Catholique, Beyrouth, lxxxii + 563 pp.</p>
<p>Noroozi, J., Talebi, A., Doostmohammadi, M., Manafzadeh, S., Asgarpour, Z. & Schneeweiss, G.M. (2019) Endemic diversity and distribution of the Iranian vascular flora across phytogeographical regions, biodiversity hotspots and areas of endemism. <em>Scientific Reports</em> 9 (1): 1–12.</p>
<p>Orazova, A.O. (1969) K sistematike roda <em>Taraxacum</em> Wigg. Srednei Azii i Kazakhstana [On the systematics of the genus <em>Taraxacum</em> Wigg. in Middle Asia and Kazakhstan]. <em>Botanicheskie Materialy Gerbaria Instituta Botaniki Akademii Nauk KazSSR</em> 6: 38–39.</p>
<p>Penther, A. & Zederbauer, E. (1906) Ergebnisse einer naturwissenschaftlichen Reise zum Erdschias-Dagh (Kleinasien). II. Botanischer Teil. <em>Annalen des K.K. Naturhistorischen Hofmuseums Wien </em>20 (1905): 359–464.</p>
<p>Pomel, A. (1874) <em>Nouveaux matériaux pour la flore atlantique</em>, vol. 1. Savy, Paris & Juillet St-Lager, Alger, 260 pp.</p>
<p>Pomel, A. (1875) <em>Nouveaux matériaux pour la flore atlantique</em>, vol. 2. Savy, Paris & Juillet St-Lager, Alger, pp. 257[sic!]–399.</p>
<p>Post, G.E. (1896) <em>Flora of Syria, Palestine and Sinai; from the Taurus to Ras Muhammad, and from the Mediterranean Sea to the Syrian desert</em>. Syrian Protestant College, Beirut 919 pp.</p>
<p>Post, G.E. (1932) <em>Flora of Syria, Palestine and Sinai: a Handbook of the Flowering Plants and Ferns, Native and Naturalized, from the Taurus to Ras Muhammad and from the Mediterranean Sea to the Syrian Desert</em>, ed. 2 [edited by J.E. Dinsmore]. American Press, Beirut & Oxford University Press, London, xliv + 639 pp.</p>
<p>Quézel, P. & Contandriopoulos, J. (1965) Contribution a l’étude de la flore des haute montagnes de la Grèce. <em>Willdenowia </em>3: 221–288.</p>
<p>Richards, A.J. (1991) <em>Taraxacum</em> Wiggers. <em>In:</em> Strid, A. & Tan, K. (eds.) <em>Mountain flora of Greece</em>, vol. 2. Edinburgh University Press, Edinburgh, pp. 541–572.</p>
<p>Sprengel, C. (1826) <em>Caroli Linnaei</em>, ... <em>Systema vegetabilium</em>, ed. 16, vol. 3. Sumtibus Librariae Dieterichianae, Gottingae, 936 pp.</p>
<p>Sterk, A.A., Hommels, C.H., Jenniskens, M.J.P.J., Neuteboom, J.H., den Nijs, J.C.M., Oosterveld, P. & Segal, S. (1987) <em>Paardebloemen. Planten zonder vader</em>. Koninklijke Nederlandse Natuurhistorische Vereniging, Utrecht, 348 pp.</p>
<p>Thiébaut, J. (1936) <em>Flore Libano-Syrienne</em>, vol. 1. Imprimerie de l’Institut Français d’Archéologie Orientale, Le Caire, xxiv + 174 pp.</p>
<p>Thiers, B. (2020) <em>Index Herbariorum: A Global Directory of Public Herbaria and Associated Staff</em>. Available from: http://sweetgum.nybg.org/science/ih/ (accessed September 2020)</p>
<p>Turland, N.J., Wiersema, J.H., Barrie, F.R., Greuter, W., Hawksworth, D.L., Herendeen, P.S., Knapp, S., Kusber, W.-H., Li, D.-Z., Marhold, K., May, T.W., McNeill, J., Monro, A.M., Prado, J., Price, M.J. & Smith, G.F. (Eds.) (2018) <em>International Code of Nomenclature for algae, fungi, and plants (Shenzhen Code) adopted by the Nineteenth International Botanical Congress Shenzhen, China, July 2017</em>. [Regnum Vegetabile 159] Koeltz Botanical Books; Glashütten, 254 pp. https://doi.org/10.12705/Code.2018</p>
<p>van Soest, J.L. (1958) The phytogeography of <em>Taraxacum</em> with special reference to Europe. <em>Blumea, </em>Suppl. 4: 60–67.</p>
<p>van Soest, J.L. (1959) Alpine species of <em>Taraxacum</em>. <em>Acta Botanica Neerlandica </em>8: 77–138. https://doi.org/10.1111/j.1438-8677.1959.tb00013.x</p>
<p>van Soest, J.L. (1963) <em>Taraxacum </em>species from India, Pakistan and neighbouring countries. <em>Wentia </em>10: 1–91. https://doi.org/10.1111/j.1438-8677.1963.tb00013.x</p>
<p>van Soest, J.L. (1966) New species of <em>Taraxacum </em>from Asia I, II. <em>Proceedings</em>, <em>Koninklijke Nederlandse Akademie van Wetenschappen</em>, ser. C, 69: 364–388.</p>
<p>van Soest, J.L. (1966a) New <em>Taraxacum</em>-species from Europe I, II. <em>Proceedings</em>, <em>Koninklijke Nederlandse Akademie van Wetenschappen</em>, ser. C, 69: 432–446, 447–463.</p>
<p>van Soest, J.L. (1966b) <em>Taraxacum lanjouwii</em> v. Soest, a new species from Switzerland. <em>Acta Botanica Neerlandica</em> 15: 34–35.</p>
<p>van Soest, J.L. (1975) <em>Taraxacum</em> Wiggers. <em>In:</em> Davis, P.H. (ed.) <em>Flora of Turkey and the East Aegean Islands</em>, vol. 5. Edinburgh University Press, Edinburgh, pp. 786–815.</p>
<p>van Soest, J.L. (1977) <em>Taraxacum</em>. <em>In:</em> Rechinger, K.H. (ed.) <em>Flora Iranica</em>, vol. 122. <em>Compositae II – Lactuceae</em>. Avesa, Salzburg, pp. 223–285.</p>
<p>Wagenitz, G. (1962) Zur Kenntnis der Flora und Vegetation Anatoliens (Ergebnisse einer Reise im Herbst 1957). <em>Willdenowia</em> 3: 221–288.</p>
<p>Waldstein, F. & Kitaibel, P. (1802) <em>Descriptiones et icones plantarum rariorum Hungariae</em>, vol. 2. M. A. Schmidt, Vienna, pp. 105–220, plates 101–200.</p>
<p>Williams, P.H., Humphries, C.J., Araújo, M.B., Lampinen, R., Hagemeijer, W., Gasc, J.-P. & Mitchell-Jones, T. (2000) Endemism and important areas for conserving European biodiversity: a preliminary exploration of atlas data for plants and terrestrial vertebrates. <em>Belgian Journal of Entomology </em>2: 21–46.</p>
<p>Zeisek, V., Kirschner, J., Štěpánek, J. & Amini Rad, M. (2015) Microsatellite variation, sexual reproduction and taxonomic revision of <em>Taraxacum</em> sect. <em>Dioszegia</em>: relationships at a large spatial scale. <em>Preslia</em> 87: 87–117.</p>
<p>Zeisek, V., Kirschner, J., van Dijk, P.J., Štěpánek, J., Černý, T., Kotek, J. & Urbanovský, P. (2019) Analysis of wild <em>Taraxacum bicorne</em> Dahlst. (Compositae–Crepidinae) as a potential alternative natural rubber crop. <em>Genetic Resources and Crop Evolution</em> 66: 1341–1361. [https://link.springer.com/content/pdf/10.1007%2Fs10722-019-00788-4.pdf]</p>