Published online by Cambridge University Press: 06 July 2009
Socotra, a small island in the Indian Ocean, is renowned for its remarkable flora. More than one-third of its 750 plant species are endemic, and seven are included in the IUCN Plant Red Data Book. Among these is Dirachma socotrana, which is something of a botanical curiosity. It was described in 1881 but confusion over its vernacular name led to the belief that it was widespread on the island. In 1989 the authors failed to find it in many of the sites where local people said it grew and on a second visit in 1990 the puzzle was resolved with the help of a linguist. In fact the species is apparently confined to one mountain pass. Although it is not immediately threatened it is, like many of the other plants on the island, at risk because of development plans.