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Quercus warkoensir??
There is an oak one can sometimes find as Quercus warkoensir or Q. wartoensis.
After a “deep search” it became clear that it is Q. wartoensis Kotschy s.d. (Revisio generis Quercus1).
© Copyright Board of Trustees of the Royal Botanic Gardens, Kew
The variant warkoensir appears to be a misinterpretation of the handwritten name on the herbarium specimen at Kew, where it had been recorded under that name. It was recently corrected after I alerted Kew Herbarium of the error.
The epithet wartoensis means growing in or near “Warto”; –ensis is an adjectival suffix indicating origin or place. Warto (now Varto) lies in Muş, a province in Turkey. As the letter "w" is pronounced in German like a "v" in English, perhaps that is why Kotschy wrote it that way. The pronunciation should therefore be "varto-en-sis" (with the "e" like in "pet").
It could well be a synonym of Quercus petraea subsp. pinnatiloba (K. Koch) Menitsky.
Image from stockplant at Pavia Nurseries (Belgium) © Jan De Langhe - Arboretum Wespelaar, 2010
1 Some labels on the herbarium sheets by Th. Kotschy bear the title “Revisio generis Quercus”. Mostly without a date (s.d.).
