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[A study on pollen morphology of Dipsacus].

X F Feng1, T M Ai, H N Xu

  • 1Institute of Chinese Materia Madica, China Academy of Traditional Chinese Medicine, Beijing 100700, China.

Zhongguo Zhong Yao Za Zhi = Zhongguo Zhongyao Zazhi = China Journal of Chinese Materia Medica
|January 8, 2003
PubMed
Summary

Pollen analysis of Dipsacus species in China reveals distinct exine ornamentation patterns. These subtle pollen grain differences aid in classifying Dipsacus species.

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Area of Science:

  • Botany
  • Palynology

Background:

  • Dipsacus L. species are found in China.
  • Understanding pollen morphology is crucial for plant taxonomy.

Purpose of the Study:

  • To investigate the pollen morphology of Dipsacus L. species native to China.
  • To assess the utility of pollen characteristics in Dipsacus species identification.

Main Methods:

  • Light microscopy and scanning electron microscopy were employed.
  • Pollen samples from 17 species and 2 varieties of Dipsacus L. were analyzed.

Main Results:

  • Pollen grains are spheroidal with tricolpate apertures.
  • Exine ornamentation varied, including dispinulate-reticulate, dispinulate-foveolate, dispinulate-rugulate, and nearly smooth types.

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Conclusions:

  • Dipsacus L. represents a natural taxonomic group.
  • Pollen morphology, particularly exine ornamentation, provides valuable characters for species-level differentiation within Dipsacus.