Fine structure of two Hygropetra species, Hygropetra gelasina sp. nov. and Hygropetra balfouriana (Bacillariophyceae), and the taxonomic position of the genus with special reference to Frankophila
作者： Shigeki Mayama , Masahiko Idei
DOI: 10.1111/J.1440-1835.2009.00548.X
关键词: Botany 、 Biology 、 Diatom 、 Genus 、 Hexagonal crystal system 、 Pinnularia 、 Areola structure 、 Moss
摘要: SUMMARY A small diatom, Hygropetra gelasina sp. nov., obtained from wet moss is described. This diatom similar to balfouriana (Grunow ex Cleve) Krammer & Lange-Bertalot, which was found in the same sample. Fine structural observations revealed that H. gelasina has a reduced raphe slit and depressions along margin of axial area, at proximal ends striae. Both species are characterized by multiple rows areolae each stria hexagonal pattern sub-pores Pinnularia, but differing position areola occlusions or hymenes, internal Hygropetra. Comparison with Frankophila, shares characteristics slits structure Hygropetra, provides reference for future taxonomic study these related genera.
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