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Lemmonia has been maintained as a monotypic genus, despite the fact that it is morphologically very similar to several species of Nama. The major basis for this separation resides in the reportedly coalescent filament bases of Lemmonia as contrasted with the distinct filaments of Nama. Examination of corollas of Lemmonia with the scanning electron microscope has revealed that the filaments of the taxon are distinct. There is, then, no qualitative basis upon which to found Lemmonia, and the taxon is transferred to Nama.

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© 1989 John D. Bacon

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