title: New species from the Galoka and Kalabenono massifs: two unknown and severely threatened mountainous areas in NW Madagascar.
abstract: The Galoka mountain chain, comprising principally the Galoka and Kalabenono massifs, situated at the northern edge of the Sambirano Region in NW Madagascar is an area that was virtually unknown botanically. It was visited three times between 2005 and 2007 as part of a floristic inventory. Both massifs contain the last remaining primary forests in the Galoka chain, which extends parallel to the coastline from South of Ambilobe to North of Ambanja. Several new species have been discovered amongst the collections, eight of which are described here.
authors.affiliation: Missouri Botanical Garden, P.O. Box 299, St. Louis, Missouri, 63166-0299, U.S.A. and Conservatoire et Jardin botaniques de la Ville de Genève, ch. de l'Impératrice 1, CP 60, 1292 Chambésy, Geneva, Switzerland.  martin.callmander@mobot-mg.org.
authors.forename: Martin W
authors.initials: MW
authors.lastname: Callmander
authors.forename: Charles
authors.initials: C
authors.lastname: Rakotovao
authors.forename: Jeremi
authors.initials: J
authors.lastname: Razafitsalama
authors.forename: Peter B
authors.initials: PB
authors.lastname: Phillipson
authors.forename: Sven
authors.initials: S
authors.lastname: Buerki
authors.forename: Cynthia
authors.initials: C
authors.lastname: Hong-Wa
authors.forename: Nivo
authors.initials: N
authors.lastname: Rakotoarivelo
authors.forename: Sylvie
authors.initials: S
authors.lastname: Andriambololonera
authors.forename: Margaret M
authors.initials: MM
authors.lastname: Koopman
authors.forename: David M
authors.initials: DM
authors.lastname: Johnson
authors.forename: Thierry
authors.initials: T
authors.lastname: Deroin
authors.forename: Andriamandranto
authors.initials: A
authors.lastname: Ravoahangy
authors.forename: Serge
authors.initials: S
authors.lastname: Solo
authors.forename: Jean-Noël
authors.initials: JN
authors.lastname: Labat
authors.forename: Porter P
authors.initials: PP
authors.lastname: Lowry