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Plant Systematics and Evolution

, Volume 195, Issue 3–4, pp 177–185 | Cite as

Karyological studies of four genera of theChloranthaceae

  • Hiroshi Okada
Article

Abstract

Karyological observations on 7 species and 2 varieties of 4 genera belonging to theChloranthaceae demonstrate the presence of three basic chromosome numbers within the family, i.e., x = 8 (Hedyosmum), 13 (Ascarina) and 15 (Chloranthus, Sarcandra). The karyomorphology ofChloranthus andAscarina is similar, whereasSarcandra andHedyosmum display unique characteristics. Both karyological aspects, i.e., chromosome number and karyomorphology, demonstrate remarkable diversity ofChloranthaceae and complex relationships between its genera. A distant affinity betweenChloranthaceae andPiperales is suggested.

Key words

Magnoliidae Chloranthaceae Ascarina Chloranthus Hedyosmum Sarcandra Chromosome numbers karyomorphology phylogeny 

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Copyright information

© Springer-Verlag 1995

Authors and Affiliations

  • Hiroshi Okada
    • 1
  1. 1.Department of Biology, Faculty of ScienceOsaka UniversityToyonaka, OsakaJapan

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