Abstract
Hieracium ciucasense is a new, apomictic species described from the Ciucaş Mountains in the Eastern Carpathians, Romania. It belongs to the H. pietroszense aggregate comprising taxa of presumably hybrid origin between H. alpinum L. and H. bifidum s. lat. The new species is illustrated with photographs of the holotype and living plants; it differs from the other taxa of the H. pietroszense aggregate in the Carpathians in that the leaves are brown-purple spotted. The distribution of the H. pietroszense aggregate in the Carpathians is mapped.
References
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Szel?g, Z. (2020) Hieracium richianum (Asteraceae) a new species of H. sect. Alpina from the Eastern Carpathians in Romania. Phytotaxa 436 (1): 93–96. https://doi.org/10.11646/phytotaxa.436.1.11
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Linnaeus, C. (1753) Species plantarum. L. Salvius, Holmia, 1200 pp. http://dx.doi.org/10.5962/bhl.title.669
Mráz, P. (2001) Chromosome numbers in selected species of Hieracium sect. Alpina from Central and Eastern Europe. Folia Geobotanica 36: 321–332. https://doi.org/10.1007/BF02803184
Mráz, P. (2003) The Hieracium pietroszense group in the Carpathians. Folia Geobotanica 38: 299–318. https://doi.org/10.1007/BF02803201
Nyárády, E.I. (1965) Hieracium L. In: Nyárády, E.I. (Ed.) Flora Republicii Populare Romîne, vol. 10. Editura Academiei Republicii Populare Romîne, Bucure?ti, pp. 214–746.
Szel?g, Z. (2019) Two new species in Hieracium sect. Alpina (Asteraceae) from the Eastern Carpathians in Poland. Phytotaxa 406 (1): 71–78. https://doi.org/10.11646/phytotaxa.406.1.4
Szel?g, Z. (2020) Hieracium richianum (Asteraceae) a new species of H. sect. Alpina from the Eastern Carpathians in Romania. Phytotaxa 436 (1): 93–96. https://doi.org/10.11646/phytotaxa.436.1.11
Zahn, K.H. (1907) Beiträge zur Kenntnis der Archieracien Ungarns und der Balkanländer I. Magyar Botanikai Lapok 5: 62?94.