Hieracium bertisceum is described as a species new to science and illustrated. It is compared with H. (sect. Hieracium) transylvanicum and H. oxyodon (bupleuroides-bifidum) and is assumed to originate from the crossing of these two species, an assumption further supported by its similarity to the equally sympatric H. pseudobifidum (transylvanicum-bifidum). Currently it is only known from a mountain ridge of Mt Marijas in the Prokletije Mts, in the central Balkan Peninsula.
References
O. Behr
,
E. Behr
&
K. H. Zahn
1937, 1939a: Beiträge zur Kenntnis der Hieracien von Südserbien. — Glasn. Skopsk. Naučn. Drustva 18: 51–67, 20: 23–34. Google Scholar
O. Behr
,
1939b: Beiträge zur Kenntnis der Hieracien von Südserbien, Montenegro und Griechenland. — Glasn. Skopsk. Naučn. Drustva 20: 121–129. Google Scholar
J. Chrtek Jr
1996: Chromosome numbers in selected species of Hieracium (Compositae) in the Sudeten Mts and the Western and Ukrainian Eastern Carpathians. — Fragm. Flor. Geobot. 41: 783–790. Google Scholar
IPNI 2005: The International Plant Names Index. — Published on the Internet http://www.ipni.org [accessed August 2005]. Google Scholar
IUCN 2001: IUCN Red List categories and criteria, version 3.1. — Gland & Cambridge. Google Scholar
P. Mráz
&
Z. Szeląg
2004: Chromosome numbers and reproductive systems in selected species of Hieracium and Pilosella (Asteraceae) from Romania. — Ann. Bot. Fennici 41: 405–414. Google Scholar
M. Niketić
1999a: Softverske aplikacije za procenu stepena ugroženosti taksona [Software application for the taxon threat estimation], — Pp. 30–31, 404–405 in:
V. Stevanović
(ed.), Crvena knjiga flore Srbije [The Red Data Book of Flora of Serbia] 1. — Beograd. Google Scholar
M. Niketić
1999b:
Hieracium oxyodon Fries, subsp. oxyodon. — Pp. 344–345, 511–512 in:
V. Stevanović
(ed.), Crvena knjiga flore Srbije [The Red Data Book of Flora of Serbia] 1. — Beograd. Google Scholar
M. Niketić
P. Bareka
&
G. Kamari
2003: Karyosystematic study of selected Hieracium taxa (Compositae) from Mt Durmitor (Montenegro). — Bot. Chron. 16: 23–45. Google Scholar
V. Stevanović
,
S. Jovanović
,
D. Lakušić
&
M. Niketić
1995: Diverzitet vaskularne flore Jugoslavije sa pregledom vrsta od medunarodnog značaja [Diversity of vascular flora of Yugoslavia with survey of the species of international significance]. — Pp. 183–217 in:
V. Stevanović
&
V. Vasić
(ed.), Biodiverzitet Jugoslavije sa pregledom vrsta od medunarodnog značaja [Biodiversity of Yugoslavia with survey of the species of international significance]. — Beograd. Google Scholar
V. Vladimirov
2000: Diploid species of the genus Hieracium s. 1. in Bulgaria. — Abh. Ber. Naturkundemus. Görlitz 72 (Suppl.): 16. Google Scholar
K. H. Zahn
1922–38:
Hieracium. — In:
P. F. A. Ascherson
&
K. O. P. P. Gräbner
(ed.). Synopsis der mitteleuropäischen Flora 12(1): 1–492 (1922–30), 12(2): 1–790 (1930–35), 12(3): 1–708 (1936–38).—Leipzig. Google Scholar