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Abstract:
A critical re-examination of recent collections and herbarium specimens from Korea previously referred to Neosiphonia simplex (Hollenberg) Y.Lee showed them to be incorrectly identified. The phylogenetic analyses of rbcL sequences demonstrated that ‘N. simplex’ from Korea formed a clade distinct from other species in Polysiphonia sensu lato, and was clearly separate from N. simplex from California, with high sequence divergence. We propose N. simplex sensu Y.Lee from Korea as the new species, Neosiphonia yongpilii sp. nov. This novel species was characterized by severely twisted erect axes, with two to three pinkish sterile cells at apices of spermatangial branches. We also noted that lateral and basal sterile cell groups remain until maturation of the gonimoblast, and that the origin of inner and outer cortical filaments of the pericarp are central cells and pericentral cells respectively.
ACKNOWLEDGEMENTS
We thank all members of the Molecular Phylogeny of Marine Algae Laboratory at Jeju National University for collecting samples. This work was supported by a grant from the NIBR, funded by the Ministry of Environment of the Republic of Korea (NIBR201501204).
SUPPLEMENTARY DATA
Supplementary data associated with this article can be found online at http://dx.doi.org/10.2216/15-132.1.S1.