Endressistemon E.M.Friis, P.R.Crane, K.R.Pedersen, M.M.Mendes et J.Kvaček

Plant Fossil Names Registry Number: PFN002796

Act LSID: urn:lsid:plantfossilnames.org:act:2796

Authors: E. M. Friis, P. R. Crane, K. R. Pedersen, M. M. Mendes & J. Kvaček

Rank: genus

Reference: Friis, E. M., Crane, P. R., Pedersen, K. R., Mendes, M. M. & Kvaček, J. (2022): The Early Cretaceous mesofossil flora of Catefica, Portugal: angiosperms. – Fossil Imprint 78(2): 341–424.

Page of description: 381

Type

Original diagnosis/description

Staminate structure consisting of a short, common stalk bearing two fully developed lateral stamens with a median axis-like structure between them. Stamens tetrasporangiate and dithecate with sessile, basifixed anthers attached directly to the common stalk. Thecae straight and parallel in each stamen, but the thecae of the two stamens diverging apically. Apex of the two stamens with prominent coriaceous projection that is also seen on the median axis-like structure. A bundle extends from the common base into the apical projection of the two stamens and the median axis-like structure. Pollen grains monocolpate, semitectate-reticulate.

Etymology

In honor of Peter K. Endress for his many contributions to understanding the flower and stamen morphology of angiosperms.