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Bulletin of Botanical Research ›› 2013, Vol. 33 ›› Issue (3): 271-273.doi: 10.7525/j.issn.1673-5102.2013.03.004

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New Observation of Megaspore Morphological Characteristics in Isoetes yunguiensis

LI Xiao-Dong;SUN Hao;ZHANG Da-Wei;LIU Bao-Dong*   

  1. Key Laboratory of Plant Biology,College of Heilongjiang Province/Harbin Normal University,Harbin 150025
  • Received:1900-01-01 Revised:1900-01-01 Online:2013-05-20 Published:2013-05-20
  • Contact: LIU Bao-Dong
  • Supported by:

Abstract: New megaspore morphological characteristics of the protected plant—Isoetes yunguiensis were observed using scanning electron microscope (SEM). The result indicates: globular granule on megaspore surface; inapparent reticulate ornamentation; inapparent reticulate ornamentation with big size. Megaspore of the old ligulate heterosporophyte are easy to significantly change in size, ornamentaion and fissure.

Key words: Isoetes yunguiensis, megaspore, morphological characteristics

CLC Number: