Sorbus orbiculata (Rosaceae), a new species from Caucasus, North-East Anatolia and North-West Iran


E. Tz. Gabrielian


DOI: https://doi.org/10.31111/novitates/2018.49.87


Annotation

Long-standing observations of plants named by Yu. D. Zinserling (1939) Sorbus graeca (Spach) Lodd. ex S. Schauer var. orbiculata Zinserl., nom. inval., descr. ross., and later described by us as S. umbellata (Desf.) Fritsch var. orbiculata Gabrielian (1978), allowed to identify significant additional features to clearly distinguish them from typical plants of S. graeca. We propose to consider these plants as an independent species S. orbiculata (Gabrielian) Gabrielian, comb. et stat. nov. Distinctive features of this species from S. graeca, as well as from other closely related species S. umbellata and S. taurica Zinserl. are shown.


Key words: Sorbus graeca complex, S. orbiculata, Caucasus, North-East Anatolia, North-West Iran, new species, distinctive features, key for determination of closely related species


How to cite

Gabrielian E. Tz. 2018. Sorbus orbiculata (Rosaceae), a new species from Caucasus, North-East Anatolia and North-West Iran // Novitates Syst. Pl. Vasc. Vol. 49. P. 87–92. https://doi.org/10.31111/novitates/2018.49.87


Submitted: 20.08.2018. Accepted: 21.12.2018.


References

Aldasoro J. J., Aedo C., Garmendia F. M., de la Hoz F. P., Navarro C. 2004. Revision of Sorbus subgenera Aria and Torminaria (Rosaceae — Maloideae) // Systematic Botany Monographs. Vol. 69. P. 1–148. https://doi.org/10.2307/25027918

Gabrielian E. Tz. 1958а. Kavkazskiye predstaviteli roda Sorbus L. [Caucasian representatives of genus Sorbus L.] // Acta Inst. Bot. Acad. Sci. SSR Armeniae. Vol. 11. P. 73–141. [In Russian] (Габриэлян Э. Ц. 1958. Кавказские представители рода Sorbus L. // Труды Ботан. ин-та АН АрмССР. Т. 11. С. 73–141).

Gabrielian E. Tz. 1958b. Rod Sorbus L., ryabina [Genus Sorbus L., Rowan] // Flora Armenii [Flora of Armenia] / A. L. Takhtajan (ed.-in-chief). Vol. 3. Yerevan: Acad. Nauk Arm. SSR. P. 256–285. [In Russian] (Габриэлян Э. Ц. 1958. Род Sorbus L., рябина // Флора Армении / А. Л. Тахтаджян (ред.). Т. 3. Ереван: Изд-во АН Арм. ССР. С. 256–285).

Gabrielian E. Tz. 1961. The genus Sorbus L. in Turkey // Notes Roy. Bot. Gard. Edinb. Vol. 23, № 4. P. 483–496.

Gabrielian E. Tz. 1972. Sorbus L. // Flora of Turkey. Vol. 4. Edinburgh: University Press. P. 147–156.

Gabrielian E. Tz. 1978. Ryabiny (Sorbus L.) Zapadnoi Azii i Gimalayev [Rowans (Sorbus L.) of Western Asia and Himalayas]. Yerevan: Acad. Nauk Arm. SSR. 264 p. + 62 tab. [In Russian with English abstract] (Габриэлян Э. Ц. 1978. Рябины (Sorbus L.) Западной Азии и Гималаев. Ереван: Изд-во АН Арм. ССР. 264 с., 62. табл.).

Jankun A., Gabrielian E. 1979. Karyology of the representatives of the genus Sorbus L. distributed in Armenian SSR (Kariologia przedstawicieli rodzaju Sorbus L. z terenu Armeńskiej SZRR) // 4th Ogólnopolska Konferencja Cytogenetyczna. Gdańsk. P. 20. [In Polish].

Zinserling Yu. D. 1939. Rod Ryabina — Sorbus L.: podrod Hahnia Medik. [Genus Rowan — Sorbus L.: subgenus Hahnia Medik.] // Flora URSS / V. L. Komarov (ed.-in-chief). T. 9 / S. V. Juzepczuk (ed.). Leningrad: Acad. Sci. URSS. P. 387–401. [In Russian] (Цинзерлинг Ю. Д. 1939. Род Рябина — Sorbus L.: подрод Hahnia Medik. // Флора СССР / гл. ред. В. Л. Комаров. Т. 9 / ред. С. В. Юзепчук. Л.: Изд-во АН СССР. С. 387–401).