Proposal of Phycocalidia Santiañez & M.J.Wynne nom. nov. to replace Calidia L.-E.Yang & J.Brodie nom. illeg. (Bangiales, Rhodophyta)

Image credit: Phycocalidia suborbiculata (=Porphyra suborbiculata, Pyropia suborbiculata). Middle intertidal (Nhatrang Bay, South China Sea, Vietnam). 2001. Eduard A. Titlyanova & Tamara V. Titlyanova. AlgaeBase


In their most recent study on the economically important and speciose genus Pyropia J.Agardh, Yang et al. (2020) made considerable changes in the taxonomy and classification of the group by redefining Pyropia, describing four new genera (viz, Calidia L.-E.Yang & J.Brodie, Neoporphyra J.Brodie & L.-E.Yang, Neopyropia J.Brodie & L.-E.Yang, and Uedaea J.Brodie & L.-E.Yang), and taxonomically reinstating Porphyrella G.M.Smith & Hollenberg with an emended description. The genus Calidia was described using both morphological and molecular characters, based on the new species Calidia pseudolobata L.-E.Yang, J.Brodie & Q.-Q.Lu (Yang et al. 2020). Unfortunately, that genus name is illegitimate, being a later homonym of Calidia J.Stirton in King et al. (1876), a genus of lichens that is presently considered to be a later taxonomic synonym of Byssoloma Trevisan, 1853 (James, 1971). We here propose a new genus name to replace the red algal genus Calidia L.-E.Yang & J.Brodie, as well as transfer species that had been assigned to this segregate genus.

Notulae Algarum, 140 (28 May 2020)
Wilfred John E. Santiañez
Assistant Professor
Collections Manager,
G.T. Velasquez Phycological Herbarium

My research interests include seaweed biodiversity and systematics, seaweed molecular phylogenetics, seaweed ecology, seaweed cultivation, and coastal resources management.