Synangium

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Synangia (bulbous) in Psilotum nudum

The synangium (from ancient Greek σύν "together" and άγγείον "vessel", "container") is a group of intergrown sporangia in botany and palaeobotany . They occur particularly in the ferns , such as the Marattiaceae , or the fork-leaf family, but also in fossil seed ferns such as the Medullosales .

The term stands in contrast to single sporangia and the sorus , in which the sporangia are arranged in groups but not fused together.

literature

  • Gerhard Wagenitz : Dictionary of botany. The terms in their historical context. 2nd, expanded edition. Spektrum Akademischer Verlag, Heidelberg / Berlin 2003, ISBN 3-8274-1398-2 , p. 319.

Individual evidence

  1. ↑ U. Lehmann: Paleontological dictionary. 4th edition, p. 234, Springer-Verlag, 2014. ISBN 978-3-662-45605-7 (reading sample)
  2. ↑ AG Murdock: A taxonomic revision of the family eusporangiate away marattiaceae, with description of a new genus Ptisana . In: Taxon , Vol. 57, No. 3, pp. 737–755, 2008. (digitized version )
  3. ^ AR Smith, KM Pryer, E. Schuettpelz, P. Korall, H. Schneider & PG Wolf: A classification for extant ferns. In: Taxon , Vol. 55, No. 3, pp. 705–731, 2006. (digitized version)
  4. ↑ G. Pacyna & D. Zdebska: Upper Carboniferous Seed Fern (Pteridospermatophyta) Pollen Organs from Silesia (Poland) and related Evolution Considerations. In: Monographiae Botanicae , Vol. 100, 81 S., 2010. (digitized version)
  5. ↑ M. Ingrouille: Diversity and Evolution of Land Plants . 340 pp., Chapman & Hall, 1992. ISBN 0-412-44230-2 (reading sample)