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Journal of Plant Research

, Volume 114, Issue 3, pp 375–376 | Cite as

Monoecious Plants of Myriophyllum ussuriense (Regel) Maxim. in Japan

  • Satoko Ueno
  • Yasuro Kadono
Short Communication

Myriophyllum ussuriense

has been described as dioecious but monoecious plants were newly found from some populations in south-western Japan. Sex expression of monoecious plants proved labile and they sometimes bore male or female flowers alone. On the other hand, sex expression of dioecious plants was stable and seemed to be fixed genetically. M. ussuriense may be still in the course of differentiation from monoecy to dioecy.

Keywords: Dioecy, Haloragaceae, Monoecy, Myriophyllum, Sex expression 

Copyright information

© The Botanical Society of Japan 2001

Authors and Affiliations

  • Satoko Ueno
    • 1
  • Yasuro Kadono
    • 1
  1. 1.Department of Biology, Faculty of Science, Kobe University, Nada-ku, Kobe, 657–8501 JapanJP

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