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Plant Diversity ›› 1995, Vol. 17 ›› Issue (02): 1-3.

• 研究论文 •    

山茶科核果茶属、石笔木属和拟核果茶属的分类学位置

杨世雄 闵天禄   

  1. 中国科学院昆明植物研究所
  • 出版日期:1995-04-25 发布日期:1995-04-25

STUDIES ON TEH SYSTEMATIC POSITION OF GENERA PYRENARIA, TUTCHERIA AND PARAPYRENARIA OF FAMILY THEACEAE

YANG Shi-Xiong MING Tian-Lu   

  1. Kunming Institute of Botany, Chinese Academy of Sciences
  • Online:1995-04-25 Published:1995-04-25

摘要: 从形态学、胚胎学、孢粉学和解剖学4方面探讨了核果茶属(Pyrenaria B1.)、石笔木属(Tutcheria Dunn)和拟核果茶属(Parapyrenria H.T.Chang)的分类学问题,3属在形态上的主要差异具有连续性而难以断开,大小孢子和雌雄配子体的发生过程高度相似,均具有皱波状至皱网状的花粉外壁纹饰和大头茶型(Gordoniaceous-Type)气孔器,几方面的资料提示,核茶属、石笔木属和拟核果茶属是一个不可分割的自然类群,从而以新的证据支持或主张将上述3属合并成1属。

关键词: 山茶科, 核果茶属, 石笔术属, 拟核果茶属, 分类学位置

Abstract: The systematic positions of these three genera Pyrenaria, Tutcheria and Parapyrenaria have been studied in this paper based on these data of morphology, embryology, palynology and anatomy.Morphologically, these main characters proposed by former researchers to differentiate these three genera from one another, such as the number of ovules in each locule and the texture of carpodermis, etc. are continually variable so that it is difficult to distinguish them clearly. The high similarity in the shape, structure and germination type of their seed binds them closely to-gether.

Key words: Theaceae