Related Experiment Video
Updated: Jan 28, 2026

Methods for Comparing Nutrients in Beebread Made by Africanized and European Honey Bees and the Effects on Hemolymph Protein Titers
Published on: March 17, 2015
Pollen morphology of the African Sclerosperma (Arecaceae)
Friðgeir Grímsson1, Johan L C H van Valkenburg2, Jan J Wieringa2
1Department of Palaeontology, University of Vienna, Vienna, Austria.
Abstract:
Three currently accepted Sclerosperma species appear to produce four different pollen morphologies. Sclerosperma mannii and S. walkeri pollen share the same distinct reticulate sculpture, but S. profizianum produces three different pollen types (microreticulate, fossulate, and perforate). The pollen morphology suggests that S. mannii and S. walkeri are sister taxa of the same intrageneric lineage. The pollen diversity observed in S. profizianum suggests (a) this taxon is unique regarding its pollen diversity despite being a non-heterostylous plant or (b) that circumscription of S. profizianum as a species may well be in the need of redefinition.
Related Concept Videos
Microbial Morphologies
Allergic Reactions
Pollination and Flower Structure
The Angiosperm Life Cycle
Gene Flow
Lytic Cycle of Bacteriophages

