Cyperus microiria (Cyperaceae), a new alien species for the Caucasus

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The first findings of Cyperus microiria, an alien species with a natural range in South and Southeast Asia, are reported for the Caucasus. The species was initially discovered in collections from Adjara stored in the Herbarium of the Batumi Botanical Garden (BATU), and then was re-collected by the author from the same region in 2023. The first collections from the territory of the Botanical Garden, where the species entered presumably due to the introduction of subtropical Asian plants, date back to 1987. Currently, it is a fairly common species in disturbed wet habitats of the coastal lowland. The nearest findings were made in Rize, Turkey, where the species was recorded as naturalized only in 2014.

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作者简介

V. Vishnyakov

Papanin Institute for Biology of Inland Waters RAS; Cherepovets State University

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Email: aeonium25@mail.ru
俄罗斯联邦, Borok, Yaroslavl Region, 152742; Lunacharsky Ave., 5, Cherepovets, Vologda Region, 162600

参考

  1. Dai L.-K., Tucker G.C., Simpson D.A. 2010. Cyperus. – In: Flora of China. Vol. 23. Beijing and Missouri. P. 219–241.
  2. Egorova T.V. 2006. Cyperus L. – In: Caucasian Flora Conspectus. Vol. 2. Saint Petersburg. P. 199–204 (In Russ.).
  3. Mears R.L., Libby G.W. 1995. New records of Cyperus (Cyperaceae) from Kentucky. – Castanea. 60(1): 79–82. https://www.jstor.org/stable/4033838
  4. POWO: Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. 2023. http://www.plantsoftheworldonline.org/ (Accessed 10 September 2023)
  5. Şapci H., Vural C. 2018. Two new naturalized species of the genus Cyperus (Cyperaceae) from Turkey. – Artvin Çoruh Üniversitesi Orman Fakültesi Dergisi. 19(1): 35–38. https://doi.org/10.17474/artvinofd.333093
  6. Thiers B. 2023. Index Herbariorum: A Global Directory of Public Herbaria and Associated Staff. New York Botanical Garden’s Virtual Herbarium. http://sweetgum.nybg.org/ih.
  7. Verloove F. 2014. A conspectus of Cyperus s.l. (Cyperaceae) in Europe (incl. Azores, Madeira and Canary Islands), with emphasis on non-native naturalized species. – Webbia. 69(2): 179–223. https://doi.org/10.1080/00837792.2014.975013

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2. Fig. 1. Cyperus microiria from the Caucasus: a – inflorescence; b – spikelet; 1 – rachilla, 2 – glumes; c – glume from abaxial surface; d – nutlet. Scale bars: b – 2 mm, c, d – 1 mm.

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