Pericarp anatomy and evolution inCoriaria (Coriariaceae)

  • Hiroshi Tobe
  • Mitsuo Suzuki
  • Tatsundo Fukuhara


The first overall study of pericarp anatomy ofCoriaria is presented to discuss its evolution and relationships within a genus. All 14 species investigated (including 11 narrowly defined species) have somewhat bilaterally flattened mature fruits with five to seven (or more) longitudinal costae. They share a usually nine-(or more-)cell-layered (at intercostal region), stratified mature pericarp, which is basically constructed by an exocarp, an outer, a middle and an inner zone of mesocarp, and an endocarp. While a multi-layered endocarp is composed of circumferentially elongate fibres, a multi-layered inner zone of the mesocarp comprises longitudinally elongate fibres. Despite its uncertain systematic value, the presence of those fibres arranged crisscross is a characteristic feature of the genus. Comparisons among species indicate thatCoriaria terminalis, a species of the Eastern Hemisphere, retains a basic or archaic, well-stratified pericarp structure similar to the one found in all the species investigated of the Southern and Western Hemisphere, and that four species of Asia,Coriaria napalensis, C. sinica, C. intermedia andC. japonica, share a specialized structure (lacking the outer zone of the mesocarp) indicative of their mutual close affinity. Comparisons further suggest distinctness ofCoriaria intermedia, as well as variously derived position ofC. myrtifolia andC. japonica.

Key words

Anatomy Coriaria Coriariaceae Fruit Pericarp Systematics 



crystaliferous cell






inner zone of mesocarp


middle zone of mesocarp


outer zone of mesocarp


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Copyright information

© Botanical Society of Japan 1992

Authors and Affiliations

  • Hiroshi Tobe
    • 1
  • Mitsuo Suzuki
    • 2
  • Tatsundo Fukuhara
    • 3
  1. 1.Department of Biology, College of Liberal Arts and SciencesKyoto UniversityKyotoJapan
  2. 2.Department of Biology, College of Liberal ArtsKanazawa UniversityKanazawaJapan
  3. 3.Department of Botany, Faculty of ScienceKyoto UniversityKyotoJapan

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