Plant Diversity ›› 2006, Vol. 28 ›› Issue (2): 145-148.

• Articles • Previous Articles     Next Articles

Chromosome Study of Monotropa (Monotropaceae)

 HUANG  Xiang-Xu-1,   Yi-Qi-Fei-1,   Xing-Fu-Wu-1,   Liu-Dong-Ming-1,   Gu-Zhi-Jian-2**   

  1. 1 South China Botani cal Garden , Chinese Academy of Sciences, Guangzhou 510650, China;
    2 Kunming Institute of Botany , Chinese Academy of Sci ences , Kunming 650204, China
  • Online:2006-04-25 Published:2014-01-17


The chromosome numbers of meiotic metaphase I of pollen mother cell of Monotr opa uniflr oa L. and M1 hyp opitys
var1 hirsutea Roth are reported. It is shown that the chromosome numbers in both plants are n= 24. In accordance with
previous cytologyical data and our observation, basic chromosome number in Monotropa is x= 8. The variations of ploidy and geographical
distribution of taxa of Monotropaceae and Pyrolaceae are discussed. Basic chromosome mumbers in subfamilies Monotropadieae
and Pyroloideae were compared. In view of the differences in growth habit and anther splitting in the two subfamilies, the
authors agree with Hutchinson, i1 e. subfamily Monotropaodieae should be treated as a separate family, Monotropaceae.

Key words: Monotropa, Chromosome numbers, Monotropaceae, Pyrolaceae

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