J Syst Evol ›› 2009, Vol. 47 ›› Issue (2): 115-122.DOI: 10.1111/j.1759-6831.2009.00010.x

• Research Articles • Previous Articles     Next Articles

A palynotaxonomic study of the genus Filipendula (Rosaceae)

Sangtae LEE*1 Meekyung KANG 1 Kyeong-In HEO 1 Wen-Li CHEN 2 Chunghee LEE 3   

  1. 1 ( Department of Biology, Sungkyunkwan University, Suwon 440-746, Korea )
    2 ( State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China )
    3 ( Division of Botanical Research, Korea National Arboretum, Pocheon 487-821, Korea ) *Author for correspondence. E-mail: stlee@skku.edu; Tel. & Fax: +82-31-290-7001.
  • Received:2007-10-17 Published:2009-04-02

Abstract: Pollen grains from 15 species (18 taxa) of the genus Filipendula were examined with light and scanning electron microscopy. It was revealed that the pollen grains are isopolar, tricolporate, with scabrate or scabrate-microechinate surface. The pollen morphology was compared with the conventional classification systems of the genus by different authors, and supported Shimizu's system (1961), in which the genus was divided into three subgenera. The monotypic subgen. Hypogyna is characterized by pollen lacking fastigium and thickened costae colpi. The other monotypic subgen. Filipendula differs from others by pollen having larger grain, larger pore size, longitudinally elliptic fastigium and thickened costae colpi. The largest subgen. Ulmaria is distinguished by pollen having rounded or latitudinally elliptic fastigium and thickened costae colpi. Sectional classification was not supported by the pollen morphology due to insufficient variability.

Key words: Filipendula, palynology, systematics