Abstract
Hieracium todorovskii (Asteraceae) is described as a new species of H. sect. Olympica, endemic to Baba Mt. in southwestern North Macedonia. The species occurs sporadically within an area of ca. 30 km² at elevations between 1565 and 2205 m. Its morphology is intermediate between H. olympicum s.l. and H. sparsum, suggesting a possible hybrid origin. It is clearly distinguished from similar species of the genus by the following combination of characters: phylopodous habit; basal leaves entire to denticulate, acute; middle and upper parts of the stem with dark to blackish, patent simple hairs, 5.5–8.5(–10) mm long; involucres with ± numerous dark grayish to blackish simple hairs and dense stellate hairs; phyllaries up to 2.3 mm wide at the base, ± obtuse to subacute; achenes pale brown; and pappus grayish. Photographs of the holotype and living material are provided.
References
- Behr, O., Behr, E. & Zahn, K.H. (1937) Beiträge zur Kenntnis der Hieracien der Balkanhalbinsel. Glasnik skopskog naučnog društva, Odeljenje prirodnih nauka 18: 51–67.
- Bergmeier, E., Sakellarakis, F., Strid, A. & Swinkels, C. (2020) New additions to the flora of Prespa, Greece. Phytologia Balcanica 26 (1): 103–130.
- Boissier, P.E. (1844) Diagnoses plantarum orientalium novarum, ser. 1, vol. 4. B. Hermann, Lipsiae, 86 pp.
- Frivaldszky, E. (1836) Succinctae diagnoses specierum plantarum novarum anno 1935 in Turcia europaea collectarum. Flora 19: 433–437.
- Frivaldszky, E. (1840) Hieracium cernuum Friv. A Magyar Tudós Társaság évkönyvei 4: 204.
- Gottschlich, G. & Dunkel, F.G. (2018) New taxa of Hieracium and Pilosella (Asteraceae) – from northern and central Greece. Stapfia 109: 3–24.
- Gottschlich, G. & Dunkel, F.G. (2019) New taxa of Hieracium and Pilosella (Asteraceae) from Northern Greece II. Stapfia 111: 5–32.
- Rechinger, K.H. (1939) Zur Flora von Ostmazedonien und Westthrazien. Botanische Jahrbücher für Systematik 69 (4): 419–552.
- Szeląg, Z. (2018) Hieracia balcanica XIV. Two new species in Hieracium sect. Cernua (Asteraceae) from Bulgaria. Phytotaxa 348 (2): 125–132. https://doi.org/10.11646/phytotaxa.348.2.7
- Teofilovski, A. (2019) New chorological data on Hieracium (Asteraceae) in North Macedonia. Glasnik Hrvatskog Botaničkog Društva 7 (2): 71–75.
- Uechtritz, R. von (1875) Hieracium dacicum n. sp. Österreichische Botanische Zeitschrift 25: 214–215. https://doi.org/10.1007/BF01636003
- Velenovský, J. (1891) Flora Bulgarica. Descriptio et enumeratio systematica plantarum vascularium in principatu Bulgariae sponte nascentium. Prostat apud Fr. Řivnáč, Bipliopolam, Pragae, 676 pp. https://doi.org/10.5962/bhl.title.9876
- Vladimirov, V., Matevski, V., Bancheva, S., Kostadinovski, M., Delcheva, M. & Ćušterevska, R. (2014) Hieracium olympicum, a new species to the flora of the Republic of Macedonia. In: First symposium – Research in the field of environment and materials. Book of abstracts. Research center for environment and materials, Macedonian Academy of Sciences and Arts, Skopje, pp. 24. https://doi.org/10.7546/CRABS.2019.07.07
- Zahn, K.H. (1921–1923) Hieracium L. In: Engler, A. (Ed.) Das Pflanzenreich, vols. 75, 76, 77, 79, 82. Engelmann, Leipzig, pp. 1–1705.
- Zahn, K.H. (1938) Hieracium L. In: Ascherson, P. & Graebner, P. (Eds.) Synopsis der mitteleuropäischen Flora, vol. 12 (3). Borntraeger, Leipzig, pp. 1–708.