Taxonomy of Rumfordia (Asteraceae)

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Abstract
Rumfordia (Asteraceae, Heliantheae, Melampodiinae), of montane Mesoamerica consists of 6 spp.: R. alcortae, R. connata, R. floribunda, R. guatemalensis, R. penninervis and R. revealii. The most common, R. floribunda, is divided into the varieties floribunda, spectabilis, and the newly described australis var. nov. and jaliscensis var. nov. The rationale for taxonomic judgments and the major remaining biosystematic problems are discussed. Comparative studies suggest close relationships of Rumfordia with Axiniphyllum and Polymnia. The 1st chromosome count for Rumfordia, R. floribunda with n = 24, is also reported.

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