Huber J (1909) Materiaes para a Flora amazonica VII. Plantae Duckeanae austro-guyanenses, Enumeracao das plantas siphonogamas colleccionadas de 1902 a 1907 na Guyana brasileira pelo Sr. Adolpho Ducke e determinadas in Boletim do Museu Paraense de Historia Natural E Ethnographia, Estabelemento Graphico de C. Wiegandt, Brazil, Tomo 5, Fasciculos 2: 332
Problem: This "type" specimen L (fragment) although determined by Sleumer is not mentioned in his 1980 monograph. Further research required to confirm this is indeed a type.
