Plant Diversity ›› 2015, Vol. 37 ›› Issue (03): 271-274.doi: 10.7677/ynzwyj201514146

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Anatomical Study on the Pedicels of Two Ferns

 ZHOU  Xhi-Le, YAN  Yue-Hong   

  1. Chenshan Botanical Garden, Shanghai Chenshan Plant Science Research Center,
    Chinese Academy of Sciences, Shanghai 201602, China
  • Received:2014-11-05 Online:2015-05-25 Published:2015-01-05
  • Supported by:

    上海市绿化和市容管理局攻关项目 (F112422)

Abstract:

Pedicel is a stalk connecting sporangia with frond in ferns, and its structure and function are not clear. In this paper, we studied the pedicels of Dryopteris zhuweimingii and Pentarhizidium orientale. We found that the pedicels consist of three lines of cells, and the cell wall can be separated into two layers. The inner layer is secondary cell wall (S1) that spiral and cling to the outer layer. The outer layer is primary cell wall. And when we broke the pedicel into two sections, the inner layer of the cell wall could be pulled out like a spiral belt. This structure may be important to support and protect the sporangia.

Key words: Dryopteris zhuweimingii, Pentarhizidium orientale, Sporangium, Pedicel, Cell wall, Ferns

CLC Number: 

  • Q 944