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Prunus longispinosa (Rosaceae): a new species from Kurdistan, Iraq
Abstract
Prunus longispinosa S.E. Shahbaz and S.S, Abdulrahman (Rosaceae), a new species from Kurdistan-Iraq, is described and illustrated. It differs from all Iraqi taxa of the subgenus Amygdalus by the dark reddish color of their one-year-old twigs and the very whitish thorny branches. The new species is closely related to P. spinosissima but can be easily separated by its green drupes vs. reddish drupes from one side and green from the other. The new species also shows close resemblance to Prunus lycioides but the later differs from it in having one reddish side and pale green side of their one-year-old twigs and glabrous drupes vs. dark reddish color of their one-year-old twigs and pubescent drupes for the new species
