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Description: |
Membranous, monostromatic, olive-green to brown-purple or blackish fronds, to 500 mm long and 200 mm wide, from short stipe and basal holdfast. Similar species: Porphyra purpurea, which is monoecious. Link to Algaebase |
| Biogeography |
In Portugal: New record for Minho, collected in Insua Caminha in 2002, Vila Praia de Âncora in 2002, Forte do Cão in 2003, Montedor in 2003, Viana do Castelo in 2003, S. Bartolomeu do Mar in 2003, Rio de Moinhos in 2003, Cepães in 2003, Esposende in 2001 and Apúlia in 2002 and in Beira Litoral at Barra de Aveiro in 2000 and Buarcos in 2000 (PDF link). |
| References |
Holmes, M.J. & Brodie, J. (2004). Morphology, seasonal phenology and observations on some aspects of the life history in culture of Porphyra dioica (Bangiales, Rhodophyta) from Devon, UK. Phycologia 43: 176-188. Klein, A.S, Mathieson, A.C., Neefus, C.D., Cain, D.C., Taylor, H.A., Teasdale, B.W., West, A.L., Hehre, E.J., Brodie, J., Yarish, C. & Wallace, A.L. (2003). Identification of north-western Atlantic Porphyra (Bangiaceae, Bangiales) based on sequence variation in nuclear SSU and plastid rbcL genes. Phycologia 42: 109-122, 3 figs, 5 tables. Pereira, R., Sousa-Pinto, I. & Yarish, C. (2004). Field and culture studies of the life history of Porphyra dioica (Bangiales, Rhodophyta) from Portugal. Phycologia 43: 756-767. Teasdale, B.W., West, A., Klein, A.S. & Mathieson, A.C. (2009). Distribution and evolution of variable group-I introns in the small ribosomal subunit of North Atlantic Porphyra (Bangiales, Rhodophyta). European Journal of Phycology 44(2): 171-182, 3 figs, 5 tables. |
| Habitat: |
Marine species, on rock in interdidal, mainly on semi-exposed shores hanging downwards from rocks embedded in sand or affected by sand. Most common in spring and early summer; widely distributed. |
