Porphyra umbilicalis Kützing (1843: 383)

Dumilag, Richard V., Aguinaldo, Zae-Zae A., Mintu, Cynthia B., Quinto, Myrna P., Ame, Evelyn C., Andres, Rolando C., Monotilla, Wilberto D., Yap, Sandra L., Cao, Ernelea P., Vital, Pierangeli G. & Fontanilla, Ian Kendrich C., 2017, A review of the current taxonomic status of foliose Bangiales (Rhodophyta) in the Philippines, Phytotaxa 312 (1), pp. 47-59 : 51

Porphyra umbilicalis Kützing (1843: 383) [ Ang et al. 2014: 23]

Type: BM No. 000769632, Easdale, Argyll, Scotland (from the back of a limpet), 23.vii.1998, colls. J. Brodie & P. K. Hayes, with a cox 1 sequence (Genbank accession number: DQ442891) reported in Robba et al. (2006)

Philippine record of distribution: Manila Bay.

Note: Ulva umbilicalis Linnaeus (1753: 1163) is currently recognized as the basionym of Po. umbilicalis ( Brodie et al. 2008) . The reduction of the Philippine record of U. umbilicalis to Po. umbilicalis ( Ang et al. 2014) is unsubstantiated. The only Philippine specimen identified as U. umbilicalis was collected from Manila Bay by Blanco (1837, 1845, 1879). The same material used by the former was later described by Martens (1868: 47) as Zonaria gymnospora , now Padina gymnospora (Kützing) Sonder (1871: 47) . Later, Merill (1905, 1918) identified Blanco’s material as Padina australis Hauck (1887: 44) . The current accepted taxonomic name for Blanco’s U. umbilicalis specimen is P. australis , whose distribution is common throughout the Philippines ( Silva et al. 1987).