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Plant Systematics and Evolution

, Volume 186, Issue 1–2, pp 95–122 | Cite as

Reconsideration of the generic status ofRubrivena (Polygonaceae, Persicarieae)

  • Suk-Pyo Hong
Article

Abstract

Morphological and anatomical characters (including pollen morphology) of the genusRubrivena are described. The phylogenetic relationships ofRubrivena, the putatively related genusKoenigia and the four sections of the genusPersicaria are analyzed by the application of cladistic methods.Persicaria s. str. turns out to be paraphyletic; however, inclusion ofRubrivena produces a clade which is marked by five synapomorphies (e.g., long styles, semitectate reticulate pollen grains and some seed characters). In order to eliminate the paraphyly ofPersicaria as well as to avoid nomenclatural changes of all taxa of sect.Cephalophilon, Rubrivena is included in the genusPersicaria. Sect.Rubrivena differs from the other sections in pollen morphology [granulated muri and 6 (–7)-zonocolpate aperture system] and inflorescence type (well-branched panicles). In addition, heterostyly is confirmed inPersicaria wallichii, and is reported here also forP. pinetorum. Keys and descriptions are provided for all taxa and a distribution map is given. Two species are illustrated by line drawings. One new variety,Persicaria wallichii var.tomentosa, is described. Five lectotypes are selected.

Key words

Polygonaceae Persicarieae Rubrivena Persicaria sect.Rubrivena P. wallichii var.wallichii (=Polygonum polystachyumP. wallichii var.tomentosa var. nov. P. pinetorum Anatomy micromorphology pollen morphology cladistics heterostyly taxonomy Flora of Himalaya 

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Copyright information

© Springer-Verlag 1993

Authors and Affiliations

  • Suk-Pyo Hong
    • 1
  1. 1.Department of Systematic BotanyUppsala UniversityUppsalaSweden

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