The Frankincense Tree (Boswellia sacra Flueck., Burseraceae) in Dhofar, southern Oman: field-investigations on the natural populations

Summary Dhofar, the southern region of Oman is, together with Yemen and N Somalia, where the Frankincense tree Boswellia sacra grows. The aim of this research was to investigate the location and floristic peculiarities of the most relevant populations of Boswellia in order to propose future measures for their safeguard and improvement. The most important Frankincense sites in Dhofar are described and mapped. A floristic list of 180 taxa is also given: some are new to Oman or to the Dhofar region.