Taxonomic notes:
Octamyrtus is closely related to Rhodomyrtus and in both genera the seeds are in compartments separated by vertical and horizontal false septa. Octamyrtus differs from Rhodomyrtus and other genera of Myrtaceae in the increased number of petals, six, eight or twelve (as against four or five in Rhodomyrtus), which in Octamyrtus are very showy, unequal and strongly imbricate in the bud but enlarge rapidly to up to 6 cm long. (From: Scott 1978.)
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