Platydiscus Schönenb. et E.M.Friis in Schönenberger, Friis, Matthews & Endress

Plant Fossil Names Registry Number: PFN002811

Act LSID: urn:lsid:plantfossilnames.org:act:2811

Authors: J. Schönenberger & E. M. Friis

Rank: genus

Reference: Schönenberger, J., Friis, E. M., Matthews, M. L. & Endress, P. K. (2001): Cunoniaceae in the Cretaceous of Europe: Evidence from fossil flowers. – Annals of Botany 88(3): 423–437.

Page of description: 434

Type

Original diagnosis/description

Flowers small, shortly (?) pedunculate, actinomorphic, tetramerous, perigynous; perianth of distinct sepals and petals; androecium obdiplostemonous; anthers dorsifixed, sagittate, dithecal, tetrasporangiate; pollen small, prolate to spherical, tricolporate (?), semi-tectate, finely reticulate; nectary disc thick, annular, lobed; gynoecium syncarpous, superior regions of carpels free from each other; styles hollow; placentation axile; ovules numerous, anatropous.

Etymology

Platydiscus refers to the broad nectary disc of the fossil flowers (from Greek ‘platys’: wide, broad; ‘discos’: disc).