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Validation of Polytomella piriformis nomen nudum (Chlamydomonadaceae): a Distinct Lineage Within a Genus of Nonphotosynthetic Green Algae
- MacDonald, Shelley M., Lee, Robert W.
- The journal of eukaryotic microbiology 2015 v.62 no.6 pp. 840-844
- Chlamydomonadaceae, fungi, nucleotide sequences, ribosomal RNA
- Polytomella strain SAG 63‐10 was first described by Pringsheim (1963) as Polytomella piriformis nomen nudum. The current study validates the name Polytomella piriformis following the International Code of Nomenclature for algae, fungi, and plants (ICN). We present 18S rRNA sequences of SAG 63‐10 and several other Polytomella strains, which, along with existing mitochondrial DNA sequences, clearly distinguishes P. piriformis n. sp. from other available Polytomella species. The first type material of the species is presented, as well as an illustration and micrographs. Our own observations of P. piriformis SAG 63‐10 are compared to Pringsheim's description and to descriptions of other valid Polytomella spp.