A new Onosma (Boraginaceae) species from Central Anatolia, Turkey

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Koyuncu O., Yaylaci Ö. K., Özgişi K., Sezer O., Öztürk D.

PLANT SYSTEMATICS AND EVOLUTION, cilt.299, sa.10, ss.1839-1847, 2013 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 299 Sayı: 10
  • Basım Tarihi: 2013
  • Doi Numarası: 10.1007/s00606-013-0839-1
  • Dergi Adı: PLANT SYSTEMATICS AND EVOLUTION
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1839-1847
  • Anadolu Üniversitesi Adresli: Hayır

Özet

Onosma atila-ocakii sp. nova [Boraginaceae, Sect. Asterotricha (Boiss.) Gurke] is described and illustrated as a new species. It grows in a steppe on magnesite rocks in EskiAYehir province (Central Anatolia, Turkey). Its description, photographs, and an identification key including related species (O. roussaei DC. and O. aucheriana DC.) are given. Diagnostic morphological and palynological characters of closely related species are compared and discussed. The characteristic features of indumentum and pollen structure are studied using a light microscope. The new species distinctly differs from related species because of its setose and adpressed retrorse-pilose indumentum, 2-3 rows of setules on foliar tubercles, 10-14 mm white petals and 2.1-2.6 x 1.7-2 mm dark brown nutlets. The International Union for Conservation of Nature threat category and observations on the ecology of the populations are noted. The distribution map of this new species and closely related species in Turkey is presented.