Cyanus reuterianus (Boiss.) Holub (1973: 145)
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https://doi.org/ 10.11646/phytotaxa.531.1.2 |
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https://doi.org/10.5281/zenodo.5851037 |
persistent identifier |
https://treatment.plazi.org/id/038387DB-8129-F436-FF06-77ED4E6A49C3 |
treatment provided by |
Plazi |
scientific name |
Cyanus reuterianus (Boiss.) Holub (1973: 145) |
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14. Cyanus reuterianus (Boiss.) Holub (1973: 145) .
Centaurea reuteriana Boissier (1844: 18) View in CoL . Centaurea lanigera subsp. reuteriana (Boiss.) Dostál (1931: 68) View in CoL . Type:— TURKEY. Caria, 1843, C. Pinard s.n. (holotype G-BOIS! (G00150033), isotypes G00074349!, JE00015819!, P00703833!: top left hand corner of the sheet, W0027109!).
Centaurea ermenekensis Uysal & Şirin (2020: 176) View in CoL , syn. nova. Cyanus ermenekensis (Uysal & Şirin) Raab-Straube & Greuter in Raab-Straube & Raus (2021: 145). Type:— TURKEY. Karaman: Ermenek, W of Göktepe , 1300 m, steppe, 19 June 2017, Ertuğrul et al. 5377 (holotype KNYA!, isotype ANK).
Taxonomic notes: — Cyanus ermenekensis was described as an endemic species from Turkey with the name of Centaurea ermenekensis by Şirin et al. (2020) and then its name was changed to Cyanus ermenekensis by Raab-Straube & Greuter in Raab-Straube & Raus (2021). According to Şirin et al. (2020), C. ermenekensis is distinguished from C. reuterianus by its stem, number of capitula, involucre, and median appendages. Based on the description of C. ermenekensis and its comparison with C. reuterianus given by Şirin et al. (2020), and my careful examination of the important morphological traits ( Wagenitz 1975) of the type specimens, I found noticeable similarities, namely flowering stem lateral at base of a rosette, usually arising from base of rosette, simple or branched in upper part, decumbent-ascending, cauline leaves lanceolate to oblanceolate, 1.8–2.9 × 0.2–0.9 cm, capitula solitary at end of stem and branches, involucres ovoid and 12–18 mm long, median appendages ovate-oblong, peripheral florets slightly radiant, central florets pink- to violet-purple, 12–16 mm long, achenes ovoid-oblong, 3.5–4.5 × 1.5–2 mm, and pappus scabrous. The only difference is that C. ermenekensis has narrower involucres and slightly smaller appendages, while C. reuterianus has wider involucres and slightly larger appendages, but following a thorough investigation of many specimens, I concluded the variation in the involucres and appendages to be continuous. Therefore, by comparing localities and geographical distributions ( Fig. 7 View FIGURE 7 ), and comparing with other samples and type specimens, I established that C. ermenekensis did not differ from C. reuterianus and should be considered as a new synonym of it.
Distribution: — Cyanus reuterianus is endemic to Turkey.
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Cyanus reuterianus (Boiss.) Holub (1973: 145)
Negaresh, Kazem 2022 |
Centaurea ermenekensis Uysal & Şirin (2020: 176)
Sirin, E. & Uysal, T. & Bozkurt, M. & Ertugrul, K. 2020: ) |
Centaurea reuteriana
Dostal, J. 1931: ) |
Boissier, E. 1844: ) |