title: Nesogordonia tricarpellata (Dombeyaceae), a new species from Madagascar that compels modification of the morphological circumscription of the genus.
abstract: Nesogordonia tricarpellata Skema & Dorr, sp. nov., a new species from southeastern Madagascar, is described and illustrated. It differs from all other species of Nesogordonia Baill. in having 6-9 stamens, 3 staminodes, a 3-carpellate ovary, and a 3-valved capsule. These androecial and gynoecial characters require modification of the long-standing circumscription of the genus. The new species also has the southernmost geographic range of any species in the genus.
authors.affiliation: Institute of Molecular BioSciences, Massey University, Private Bag 11222, Palmerston North 4442, New Zealand.
authors.forename: Cynthia
authors.initials: C
authors.lastname: Skema
authors.forename: Laurence J
authors.initials: LJ
authors.lastname: Dorr