The stomatal ontogeny and structure of the liassic pteridosperm Sagenopteris (Caytoniales) from Hungary

Maria Barbacka, K. Bóka

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Stomatal ontogeny is often inferred but rarely documented for extinct fossil plants because it requires observations from young leaves that are rarely preserved as fossils. The discovery of several very young leaves of the Jurassic plant Sagenopteris (Caytoniales) in the Mecsek Mountains (southern Hungary) in a good state of preservation provides the opportunity for studying the stomatal ontogenesis of this genus. The specimens show perigenous anomocytic stomata. This feature confirms the evolutionarily high position of Sagenopteris among fossil gymnosperms and supports the opinion that the ancestors of angiosperms and some groups of pteridosperms might be closely related. Such clear examples of stomatal development have not previously been documented for fossil material.

Original languageEnglish
Pages (from-to)149-157
Number of pages9
JournalInternational Journal of Plant Sciences
Volume161
Issue number1
DOIs
Publication statusPublished - 2000

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ontogeny
Hungary
fossils
fossil
gymnosperm
stomata
angiosperm
ancestry
leaves
Angiospermae
Jurassic
mountains
mountain
young

Keywords

  • Early Jurassic
  • Ontogeny of stomata
  • Paleobotany
  • Pteridosperms
  • Sagenopteris

ASJC Scopus subject areas

  • Plant Science

Cite this

The stomatal ontogeny and structure of the liassic pteridosperm Sagenopteris (Caytoniales) from Hungary. / Barbacka, Maria; Bóka, K.

In: International Journal of Plant Sciences, Vol. 161, No. 1, 2000, p. 149-157.

Research output: Contribution to journalArticle

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