Two new species of Heliotropium L. (Boraginaceae, subfam. Heliotropioideae)
, growing in sandy loam soils in Jizan, south-west Saudi Arabia, Heliotropi
um chaudharyanum Al-Turki, Omer & A. Ghafoor and Heliotropium jizanense Al-
Turki, Omer & A. Ghafoor, are described and illustrated. The relationships
of the new species within the small-flowered Heliotropium europaeum L. spec
ies group are discussed. Notes on distribution and habitat are provided, to
gether with a map. (C) 2001 The Linnean Society of London.