<i>Secamone</i> ( <i>Apocynaceae</i> ) in the Philippines

A taxonomic revision of Secamone ( Apocynaceae ) in the Philippines is presented. Nineteen species are recognized of which eight are described as new: Secamone commutata , S . crenata , S . edanoi , S . fusiformis , S . glandulifera , S . luzonensis , S . mindanaensis and S . pyriformis . Six new combinations are made: Secamone fenixii (Tsiang) Klack., S . glauca (Decne.) Klack., S . lepta (Tsiang) Klack., S . loheri (Schltr.) Klack., S . merrillii (Schltr.) Klack. and S . radiata (Tsiang) Klack. Drawings, descriptions, distribution maps, typifications as well as a key to the Philippine taxa are presented.