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Bulletin of Botanical Research ›› 2019, Vol. 39 ›› Issue (5): 641-646.doi: 10.7525/j.issn.1673-5102.2019.05.001

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Palynology of Deparia(Athyriaceae) from Shandong and Its Significance in Classification

LI Xiao-Juan1, LI Jian-Xiu2,3   

  1. 1. Shandong Xiandai University, Jinan 250104;
    2. Beijing National Institute of Medicine, Beijing 100050;
    3. Shandong University of Traditional Chinese Medicine, Jinan 250014
  • Received:2019-02-27 Online:2019-09-05 Published:2019-07-16
  • Supported by:
    Shandong Education Reform Project[2017672(g201701005)]

Abstract: The palynology of 8 species of Deparia from the Shandong was investigated using scanning electron microscopy(SEM). The submicroscopic structures of spore morphology of a new taxonomic system of the Deparia Hook.& Grev.(Athyriaceae) from the China had been studied for the first time. The spores morphology of Deparia were reniform, bilaterally symmetrical, and possessed a perispore, the perispore ornamentation was stable within species, with clear distinctions between species. This study provided a palynological basis for establishing of Subgen.1.Athyriopsis and Subgen.2.Lunathyrium. The perispore ornamentation characteristics showed that Lunathyrium shandongense J.X.Li et F.Z.Li was a distinct species,and should be restored to a species level position rather than incorporated with Lunathyrium pycnosorum(Christ) Koidz., and we have recombined L.shandongense as D.sinoshandongensis according to the new classification system of the Deparia. This study not only accumulated new data for the palynology of Deparia, but also provided palynological basis for the classification and identification of related species. Therefore, the study of the spore morphology of the Deparia was of great significance in the genus palynology, taxonomy and system evolution.

Key words: Deparia, subgen.1.Athyriopsis, subgen.2.Lunathyrium, D.sinoshandongensis, palynology, SEM, Shandong

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