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List of works by Jens Klackenberg

A New Species of Bupleurum (Umbelliferae) from Sri Lanka

scientific article published in 1988

A New Species of Secamone (Apocynaceae, Secamonoideae) from Borneo ⬇️

scientific article published on 3 May 2004

A Second Species of the Malagasy Genus Secamonopsis (Asclepiadaceae)

scientific article

A new species of Pentopetia (Asclepiadaceae) from Madagascar ⬇️

A reevaluation of the genus Exacum (Gentianaceae) in Ceylon

scientific article

Baroniella collaris Klack. (Apocynaceae, Periplocoideae) : a new species from Madagascar ⬇️

scientific article published in 2002

Calyptranthera Viridiflava Ammann, L. Gaut. & Klack. (Apocynaceae s.l., Secamonoideae), a New Species from Madagascar

scientific article

Calyptranthera gautieri Klack. (Apocynaceae s.l., Secamoneae) : a new species from Madagascar ⬇️

scientific article

Calyptranthera schatziana (Apocynaceae s.l., Secamoneae), a new species from Madagascar ⬇️

scientific article published in 2000

Cotylanthera transferred to Exacum (Gentianaceae)

scientific article (publication date: October 2006)

Four new species of Secamone (Apocynaceae, Secamonoideae) from Indonesia ⬇️

scientific article published on 8 December 2006

GUNNERA MORAE (GUNNERACEAE), A NEW SPECIES FROM COLOMBIA / Gunnera morae (Gunneraceae), una nueva especie para Colombia

scientific article published in 2006

Monophyly and relationships of the tribe Exaceae (Gentianaceae) inferred from nuclear ribosomal and chloroplast DNA sequences

scientific article

New species of Apocynaceae from Madagascar

scientific article

New species of Baroniella and Pentopetia (Apocynaceae) from Madagascar ⬇️

scientific article published in 2007

Notes on Secamonoideae (Apocynaceae) in Africa ⬇️

Novelties in Secamone (Apocynaceae s.l., Secamonoideae) from western Madagascar ⬇️

scientific article

PHYLOGENETIC RELATIONSHIPS BETWEEN DERIVED APOCYNACEAE S.L. AND WITHIN SECAMONOIDEAE BASED ON CHLOROPLAST SEQUENCES1

scholarly article by Renaud Lahaye et al published 27 July 2007 in Annals of the Missouri Botanical Garden

Pentopetia viridis Klack. & Meve (Apocynaceae, Periplocoideae) : a new species from Madagascar ⬇️

scientific article published in 2007

Pervillaea brevirostris Klack. (Apocynaceae, Secamonoideae), a new species from Mauritius

scientific article published on 12 August 2005

Phylogeny and biogeography of exacum (gentianaceae): a disjunctive distribution in the Indian ocean basin resulted from long distance dispersal and extensive radiation

scientific article published on February 2005

Revision of the Malagasy genera Pentopetia and Ischnolepis (Apocynaceae s.l., Periplocoideae) ⬇️

scientific article

Revision of the Malagasy genus Calyptranthera (Asclepiadaceae) ⬇️

Revision of the Malagasy genus Pervillea (Asclepiadaceae) and its phylogenetic relationship to Calyptranthera

scientific article

Revision of the genus Baroniella Costantin & Gallaud (Asclepiadaceae, Periplocoideae) ⬇️

scientific article

Revision of the genus Cryptostegia R. Br. (Apocynaceae, Periplocoideae) ⬇️

scientific article published in 2001

Sebaea madagascariensis: A New Name for a Malagasy Gentianaceae

scientific article (publication date: August 1986)

Secamone brevicoronataandS. pedicellaris (Apocynaceae), two new species from Madagascar

scientific article

Secamone galinae (Apocynaceae), a new species from Madagascar

scientific article

Secamone marsupiata Klack. (Asclepidaceae, Secamonoideae) : a new species from Madagascar ⬇️

scientific article

Secamone rubra (Apocynaceae, Secamonoideae), a new species from Madagascar

scientific article

Secamone trichostemon Klack. (Apocynaceae, Secamonoideae) : a new species from Madagascar ⬇️

scientific article published in 2005

Taxonomy of Secamone (Asclepiadaceae) in Asia and Australia

scientific article published in 1992

The New Genus Calyptranthera (Asclepiadaceae) from Madagascar

scientific article

The Occurence of Endostemon viscosus (Lamiaceae) in Sri Lanka Confirmed

scientific article published in 2001

Three new species of Calyptranthera (Apocynaceae, Secamonoideae) from Madagascar ⬇️

scientific article published in 2007

Three new species of Vanguerieae (Rubiaceae) from Madagascar ⬇️

scientific article published in 2007

Two New Species of Secamone (Apocynaceae, Secamoneae) from Madagascar

scientific article

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