Chinese Bulletin of Botany ›› 1998, Vol. 15 ›› Issue (03): 57-60.

• 研究报告 • Previous Articles     Next Articles

Study on Spore Morphology of 6 Species of The Family Pottiaceae in China

DU Gui-Sen, ZANG Yu-Long and WANG Mei-Zhi   

  1. 1(Department of Biology, Capital Normal University, Beijing 100037) 2(Institute of Botany, The Chinese Academy of Sciences, Biejing 100093)
  • Online:1998-05-20 Published:1998-05-20
  • Contact: DU Gui-Sen

Abstract: The spore morphology of 6 species of the family Pottiaceae were observed by light microscope and scanning electron microscope: (1)Anoectangium thomsonii, (2)Weisia controversa, (3)Bryoerythrophyllum recurvirostrum, (4)B. yunnanense, (5)Totula muralis , (6)T. mucronifolia. The spore characteristics are different in proximal face and exine ornamentation. It showed heredity differentiation among the different genera and species in Pottiaceae. But the spores of 6 species are similar in shape, exine thickness and size. It showed that Pottiaceae may be a natural classification. The spores of Pottiaceae is more advanced than Sphagnum. However it is more primitive than gymnosperm and angiosperm in the evolution of aperture.