Pollen morphological survey of Pentas (Rubiaceae-Rubioideae) and its closest allies.

@article{Dessein2000PollenMS,
  title={Pollen morphological survey of Pentas (Rubiaceae-Rubioideae) and its closest allies.},
  author={Dessein and Scheltens and Huysmans and Robbrecht and Smets},
  journal={Review of palaeobotany and palynology},
  year={2000},
  volume={112 4},
  pages={
          189-205
        }
}
  • Dessein, Scheltens, +2 authors Smets
  • Published 1 November 2000
  • Biology, Medicine
  • Review of palaeobotany and palynology
Pollen descriptions, based on LM and SEM observations, are provided for the Pentas complex, an African alliance within the Hedyotideae-Spermacoceae alliance, which includes the genera Pentas, Otomeria, Batopedina, Parapentas, and Chamaepentas. The close relationship among these genera is confirmed by pollen morphological data. The observed variation in pollen character states agrees well with the existing genera and subgenera. The combination of small spheroidal pollen grains with narrow, acute… 
Pollen morphology of NW European representatives confirms monophyly of Rubieae (Rubiaceae)
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Phylogeny of the Herbaceous Tribe Spermacoceae (Rubiaceae) Based on Plastid DNA Data1
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This study is the first to address phylogenetic relationships within Spermacoceae from a tribal perspective and provides a phylogenetic hypothesis with broad sampling across the major lineages of Spermcoceae that can be used to guide future species-level and generic studies.
Systematics, taxonomy and floristics of Brazilian Rubiaceae: an overview about the current status and future challenges
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The present work is to offer an overall view of the most recent family classification with emphasis on the genera of Rubiaceae occurring in Brazil, and to indicate particular taxa that are still in need of phylogenetic and taxonomic studies.
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The tribes Mussaendeae and Isertieae (relatively large pollen, endexine reduced to granular `islands', endocolpi with thickened lateral margins) in their new circumscription are supported palynologically.
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The genus Tapinopentas was published by Bremekamp in 1952 and he carefully compared it with Chamaepentas, Parapentas and Pentas, but not with Otomeria, although it seems to me to take an intermediate
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TLDR
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Keywords. - Tricalysia bridsoniana sp. nov. (var bridsoniana, Kenya; var. pandensis var. nov., Tanzania); Batopedina pulvinellata subsp. glabrifolia subsp. nov. (Zaire); Tricalysia ovalifolia
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