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Klackenbergia (Gentianaceae – Exaceae), a new endemic genus from Madagascar
Author(s) -
Kissling Jonathan,
Buerki Sven,
Mansion Guilhem
Publication year - 2009
Publication title -
taxon
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 81
eISSN - 1996-8175
pISSN - 0040-0262
DOI - 10.1002/tax.583018
Subject(s) - bract , gentianaceae , biology , genus , inflorescence , botany , tribe , endemism , zoology , ecology , sociology , anthropology
Several lines of evidence (morphological, karyological and molecular) support the exclusion of both Sebaea madagascariensis Klack. and S. condensata Klack. from Sebaea Sol. ex. R. Br. (Gentianaceae – Exaceae), resulting in the establishment of a new genus Klackenbergia Kissling and two new species combinations: K. stricta (Schinz) Kissling (= S. madagascariensis ) and K. condensata (Klack.) Kissling. Klackenbergia is endemic to Madagascar and is morphologically recognized by its inflorescence with long bracts and bracteoles and subsessile flowers arranged in axillary fascicules at each node. Affinities with the other genera of the tribe Exaceae ( Exacum, Gentianothamnus, Ornichia, Sebaea, Tachiadenus ) are discussed.