Pyropia santacruzensis Guiry, 2023

Guiry, Michael D., 2023, Pyropia santacruzensis, nom. nov. for Porphyrella californica Hollenberg (Bangiaceae, Rhodophyta), Notulae Algarum 277, pp. 1-3 : 1-2

Pyropia santacruzensis Guiry , nom. nov.

Replaced name: Porphyrella californica Hollenberg , American Journal of Botany 32: 450, 1945

Description: Hollenberg (1945: 450, no fig.).

Type locality: “near Lady's Harbour (34.05625, -119.78811), Santa Cruz Island off the coast of southern California ” ( Hollenberg (1945: 450).

Holotype: Hollenberg 1353, April 19, 1936 ( Fig. 1, US). Slides 10371-10378 at US also form part of the original material

PhycoBank Registration: http://phycobank.org/103760

Etymology: Named for Santa Cruz Island, the largest of the Channel Islands, off the coast of southern California.

Distribution: Santa Cruz Islands ( Hollenberg 1945), La Laguna ( Abbott & Hollenberg 1976) and San Diego ( Stewart 1991). Seemingly confined to southern California.

Note: The use of “ Pyropia californica ” for Porphyrella californica Hollenberg is not nomenclaturally permissible because of the existence of the valid name, Pyropia californica J. Agardh (1899: 149) , currently referred to Pyropia nereocystis (C.L.Anderson) S.C.Lindstrom by Lindstrom (in Sutherland & al. 2011). Similarly, “ Pyropia hollenbergii ” is not a possible name because of the prior existence of Pyropia hollenbergii (E.Y.Dawson) J.E.Sutherland, L.E.Aguilar Rosas & R.Aguilar Rosas (in Sutherland & al. 2011).

Many thanks to Dr David Ballantine who kindly located the type in US .

Abbott, I.A. & Hollenberg, G.J. (1976). Marine algae of California. pp. [i]– xii, [1]–827, 701 figs. Stanford, California: Stanford University Press.

Agardh, J.G. (1899). Analecta algologica, Continuatio V. Lunds Universitets Års-Skrift, Andra Afdelningen, Kongl. Fysiografiska Sällskapets i Lund Handlingar 35 (4): 1-–60, 3 pls.

Hawkes, M.W. (1977). A field, culture and cytological study of Porphyra gardneri (Smith & Hollenberg) comb. nov. (= Porphyrella gardneri Smith & Hollenberg), (Bangiales, Rhodophyta). Phycologia 16: 457–469.

Hollenberg, G.J. (1945). New marine algae from southern California. III. American Journal of Botany 32: 447–451, 8 figs.

Smith, G.M. & Hollenberg, G.J. (1943). On some Rhodophyceae from the Monterey Peninsula, California. American Journal of Botany 30 (3): 211–223, 30 figs.

Stewart, J.G. (1991). Marine algae and seagrasses of San Diego County. pp. 1–197. La Jolla, California: California Sea Grant College.

Sutherland, J.E., Lindstrom, S.C., Nelson, W.A., Brodie, J., Lynch, M.D., Hwang, M.S., Choi, H.- G., Miyata, M., Kikuchi, N., Oliveira, M.C., Farr, T., Neefus, C., Mols-Mortensen, A. Milstein, D. & Müller, K.M. (2011). A new look at an ancient order: generic revision of the Bangiales (Rhodophyta). Journal of Phycology 47 (5): 1131–1151.

Yang, L.-E., Deng, Y.-Y., Xu, G.-P., Russel, S., Lu, Q.-Q. & Brodie, J. (2020). Redefining Pyropia (Bangiales, Rhodophyta): four new genera, resurrection of Porphyrella and description of Calidia pseudolobata sp. nov. from China. Journal of Phycology 56 (4): [1–18] 862–879, 4 figs.

Santiañez, W.J.E. & Wynne, M.J. (2020). Proposal of Phycocalidia Santiañez & M.J.Wynne nom. nov. to replace Calidia L.-E.Yang & J.Brodie nom. illeg. (Bangiales, Rhodophyta). Notulae Algarum 140: 1–3, no figs.

Zuccarello, G.C., Wen, X. & Kim, G.H. (2022). Splitting blades: why genera need to be more carefully defined: the case for Pyropia (Bangiales, Rhodophyta). Algae 37 (3): 205–211.