植物学报 ›› 2000, Vol. 17 ›› Issue (专辑): 256-258.

• 山旺研究 • 上一篇    下一篇

山东山旺中新世植物气孔的观察及其意义

孙启高 陈立群   

  1. (中国科学院植物研究所, 北京 100093)
  • 出版日期:2000-12-20 发布日期:2000-12-20

Stomatal Observation on Compression Fossils from the Middle Miocene Shanwang Flora in Shandong and its Implications

SUN Qi-Gao CHEN Li-Qun   

  1. (Institute of Botany, The Chinese Academy of Sciences, Beijing, 100093)
  • Online:2000-12-20 Published:2000-12-20

Abstract: The Middle Miocene-aged Shanwang flora, eastern China is diverse and abundant. In 1940 Hu & Chaney first reported the flora. Unfortunately, there was not any article documenting the existence of cuticle from the flora from 1940 to 1999 although there was a long list of references about Shanwang research. Actually, it seems very difficult to prepare the cuticle of the flora. It is showed that compression fossils of the flora suffer from drying and cracking and that the cracks and stomata were observed by SEM. It is this year that Wang and Manchester extracted small fragments of cuticle of Chaneya so as to have revised an important element, formerly named as Astronium in Shanwang flora. Recently, the stomatal and epidermal cells of other compression fossils from Shanwang flora were directly observed using epifluoresence microscope, which enables us to make the counts of stomatal characters. It is evident that stomatal observation is of great importance to further study the superficial identification of Shanwang flora and track the changing atmospheric CO2 concentrations during the Miocene.