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Synopsis of the genus Mitriostigma (Rubiaceae) with a new monocaulous species from south Cameroon
Author(s) -
Sonké Bonaventure,
Simo Murielle,
Dessein Steven
Publication year - 2009
Publication title -
nordic journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.333
H-Index - 33
eISSN - 1756-1051
pISSN - 0107-055X
DOI - 10.1111/j.1756-1051.2009.00415.x
Subject(s) - biology , rubiaceae , inflorescence , novelty , key (lock) , genus , botany , ecology , philosophy , theology
Mitriostigma monocaule Sonké & Dessein sp. nov., a new Rubiaceae species from south Cameroon is described and illustrated. The novelty is easily separated from the other four Mitriostigma species by its monocaulous growth form, the other species being shrubs, sub‐shrubs, or occasionally trees. Another typical character for the species is its supra‐axillary inflorescences paired at the nodes. The novelty is related to M. barteri , from which it further differs in the somewhat larger leaves with a more pronounced acumen and a higher number of secondary veins. A first conservation status for the species is given. A synopsis of the genus Mitriostigma with a taxonomic key is also provided.