Six new species of coffee ( Coffea ) from northern Madagascar

Summary Six new species of Coffea are described as new to science: Coffea callmanderi , C. darainensis , C. kalobinonensis , C. microdubardii, C. pustulata and C. rupicola . All six species are endemic to northern Madagascar; four species are narrowly endemic to specific forest areas. Associated information, including distribution maps, conservation assessments, phenology and taxonomic notes are provided, and two species are illustrated with line drawings.