Fraga, Naomi .
Unraveling the Mimulus montioides species complex (Phrymaceae): evidence from morphological and molecular data.
Mimulus as currently circumscribed contains 91 species, and is worldwide in distribution; however, nearly 75% of the species occur in western North America. In 2004, Beardsley et al. presented a maximum parsimony analysis of combined trnL–F, nuclear ribosomal ITS and ETS data, recovering the ‘M. palmeri clade’ with strong support (100% bootstrap support). The M. palmeri clade is found primarily within the montane regions of California. The clade is notable for including several species with highly restricted ranges, wide variation in floral morphology, and problems with species delimitation. The primary source of taxonomic confusion within the M. palmeri clade is centered on the M. montioides species complex. There are currently three described species placed in synonomy with M. montioides, and one undescribed species tentatively identified as M. montioides. Preliminary results indicate that at least four taxa currently treated as M. montioides are worthy of recognition at the species level. In this study I expand previous sampling within the clade, and utilize additional chloroplast markers to examine species monophyly. Preliminary results and taxonomic implications of these data will be discussed.
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1 - Rancho Santa Ana Botanic Garden, 1500 North College Avenue, Claremont, California, 91711, USA
Presentation Type: Oral Paper:Papers for BSA Sections
Location: Cottonwood D/Snowbird Center
Date: Tuesday, July 28th, 2009
Time: 1:15 PM