1. Woodlab-UGent, Ghent University; Laboratory of Wood Technology, Department of Forest and Water Management; Coupure Links 653 B-9000 Ghent Belgium
2. Wood Biology Service; Royal Museum for Central Africa (RMCA); Leuvensesteenweg 13 3080 Tervuren Belgium
3. Department of Botany and Plant Pathology; Oregon State University; Cordley Hall, 2701 SW Campus Way Corvalis OR USA
4. Royal Botanic Gardens, Kew; Richmond TW9 3DS UK
5. U.S. National Fish and Wildlife Forensic Laboratory; 1490 East Main Street Ashland OR USA