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Annals of Botany 23: 285-296, 1959
© 1959 Annals of Botany Company

RESEARCH-ARTICLE

On Eosperma oxroadense gen. et sp. nov.: a New Lower Carboniferous Seed from East Lothian

P. D. W. BARNARD

Botany Department, Birkbeck College, University of London

A new petrified platyspermic seed is described from the Cementstone Group (Tournaisian) of Scotland. It has a generally Lagenostomalean appearance despite its unusual symmetry, and it is compared with some other members of that order. It possesses a well-preserved megaspore membrane, one of the most notable features of which is the polygonal markings on the outer surface. Comparison is made with some megaspores from fossil and living seeds. The possible affinity of the seed is discussed.


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