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Published online by Cambridge University Press: 26 April 2010
Ephedra milleri Freitag & Maier-Stolte (Ephedraceae) from Dhofar (Oman) is described. E. sinaica Riedl, described as an endemic from S Sinai and meanwhile collected from numerous localities in higher altitudes of the western escarpment of Arabia is reduced to a subspecies of E. pachyclada.