The palm tribe Chamaedoreeae displays flowers arranged in a complex partial inflorescence called an acervulus. Ortega-Chávez and Stauffer examine ontogeny in Hyophorbe lagenicaulis and show that the acervulus and the inflorescence rachilla form a condensed and cymose branching system resembling a coenosome. Syndesmy results from a combined process of rapid development and adnation, without or with reduced axis elongation. A study of the ten taxa of the Chamaedoreeae show that a more general definition of the type of partial inflorescence observed within the large subfamily Arecoideae would correspond to a cyme rather than to a floral triad.
