The new genus Nesocrambe, with the sole species N. socotrana, endemic to the island of Soqotra, is described and illustrated. Its affinities and taxonomic position within the family are discussed. It is concluded that Nesocrambe is apparently closest to Hemicrambe, which has a disjunct distribution in NW Africa and Soqotra, and, like that genus, is a relict of the old Miocene flora which once extended around the coasts of the Mediterranean Sea. Nesocrambe is restricted to moist, shady places on limestone pinnacles and cliffs along an exposed and isolated ridge at the extreme western end of Soqotra. Its conservation status is considered.
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