Rhododendron 'Le Fouesnantais', which is a Marc Colombel hybrid documented as a 'Lem's Monarch' hybrid, has been determined to be a tetraploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Diploid 'Anna',
Diploid 'Norman Gill',
Diploid 'The Honourable Jean Marie de Montague',
Tetraploid 'Le Fouesnantais',
Tetraploid 'Lem's Monarch',
Tetraploid 'Marinus Koster'
Source Marc Colombel
John and Sally Perkins
