[an error occurred while processing this directive]

Plant Diversity ›› 1994, Vol. 16 ›› Issue (03): 1-3.

• 研究论文 •    

隐翼科花粉形态的研究

韦仲新 李德铢   

  1. 中国科学院昆明植物研究所
  • 出版日期:1994-06-25 发布日期:1994-06-25

POLLEN MORPHOLOGY OF CRYPTERONIACEAE

WEI Zhong-Xin LI De-Zhu   

  1. Kunming Institute of Botany, Chinese Academy of Sciences
  • Online:1994-06-25 Published:1994-06-25

摘要: 报道了隐翼科Crypteroniaceae花粉形态及其外壁超微结构,并与广义的隐翼科其它属的花粉进行比较。研究表明,该科的隐翼属Crypteronia以长椭圆形的极面观、近乎四棱形的赤道面观,2孔沟的萌发孔和较厚的外壁内层明显地区别于其它属的花粉。如Axinandra属、Dactylocladus属和Rhynchocalyx属的花粉为圆六角形(极面观),具3孔沟和3假沟;Alzatea属花粉为圆三角形(极面观),具3孔沟。此外,这4个属的花粉均具有薄的外壁内层,花粉较大,为Cypteronia属花粉的2倍以上。孢粉学支持把隐翼科作单模式科处理,即只包括隐翼属,不宜包括其它4个属。

关键词: 花粉形态, 隐翼科, 隐翼

Abstract: The pollen of Crypteroniceae was examined with LM, SEM and TEM, and a compari-son was made between Crypteronia and the other four related genera: Axinandra, Dactylocladus, Rhynchocalyx and Alzatea The result showed that the pollen grains of Crypteronia are different remarkablly from those of other four genera by having elliptic shape in polar view and nearly tetragonal shape in equatorial view, dicolporate, syncolpate, with two endoapertures situated at the opposite ends of the long equatorial axis, the pollen wall consists of thick endexine(2.5-3um) and very thin foot layer (less than 1 um) in Crypteronia. The pollen grains of Axinandra, Dactylocladus and Rhynchocalyx are round dexangular shape in polar view, 3-colporate and 3-pseudocolpi, while the pollen in Alzatea is round triangular shape in polat view, 3-colporate.

Key words: Pollen morphology