Why are published chromosome counts (done using techniques such as root smashes) for polyploidy flowering plants often incorrect by a multiplication factor of 2 or 3 from the original diploid like count?
When published chromosome counts for some polyploidy orchid and rhododendron species were updated such counts showed a multiplication of the original more diploid like count rather than a incremental refinement to a slightly more accurate count already in the polyploidy range.
See Ploidy Orchids
In rhododendron multiple counts of 26 chromosomes for R. austrinum, atlanticum, and luteum have been updated indicating a number of chromosomes for these three species is closer to 52 chromosomes.
Is there something about the way a polyploidy flowering plant species undergoes meiosis or mitosis that causes such miscounting to be the chromosome count for closely related diploids?