Addendum to the Synoptic Review of Red Algal Genera

An addendum to Schneider and Wynne\u27s A synoptic review of the classification of red algal genera a half century after Kylin\u27s “Die Gattungen der Rhodophyceen” (2007) Bot. Mar. 50:197–249) is presented, with an updating of names of new taxa at the generic level and higher. In the last few years, the names of several new orders and families of red algae have been validated; these are cited and referenced below

Second addendum to the synoptic review of red algal genera

A second addendum to Schneider and Wynne’s (Schneider, C.W. and M.J. Wynne. 2007. A synoptic review of the classification of red algal genera a half a century after Kylin’s “Die Gattungen der Rhodophyceen”. Bot. Mar. 50: 197–249.) “Synoptic review” of red algal genera and their classification is presented, with an updating of names of new taxa at the generic level and higher. In the past few years, the hierarchy of some genera has changed due to new subfamilies, which are cited and referenced below. There have also been the descriptions of some higher taxa in the past few years

Notes on the Marine Algae of the Bermudas. 8. Further Additions to the Flora, Including \u3cem\u3eGriffithsia aestivana\u3c/em\u3e sp. nov. (Ceramiaceae, Rhodophyta) and an Update on the Alien \u3cem\u3eCystoseira compressa\u3c/em\u3e (Sargassaceae, Heterokontophyta)

Griffithsia aestivana sp. nov. is described as an endemic from Bermuda. Vegetatively, it is most similar to G. capitata from the eastern Atlantic Ocean, but the two differ in overall size and in the tetrasporic state. Eleven other marine algal taxa are reported from Bermuda for the first time: Anadyomene howei, Struvea elegans, Cladophoropsis macromeres, Derbesia turbinata, Caulerpa racemosa var. lamourouxii, Halimeda discoidea, Chrysymenia nodulosa, Gloiocladia iyoensis, Dasya caraibica, Chondrophycus iridescens and Polysiphonia scopulorum. All except D. turbinata represent new northern limits of distribution in the North Atlantic Ocean. In addition, recent Bermuda collections of the alien Mediterranean Cystoseira compressa and the rarely found Womersleyella setacea are detailed

The pseudodichotomous Dasya sylviae sp. nov. (Delesseriaceae, Ceramiales) from 60–90 m mesophotic reefs off Bermuda

The red alga Dasya sylviae C.W.Schneid., M.M.Cassidy & G.W.Saunders sp. nov . is described from mesophotic depths of 60–90 m off Bermuda. Genetic sequences (COI-5P, rbc L) and morphological characteristics show that this species is distinct from other known pseudodichotomous species of Dasya . Of ten current species in the genus reported from Bermuda, only three, D. collinsiana M.Howe, D. cryptica C.W.Schneid., Quach & C.E.Lane and D. punicea (Zanardini) Menegh., share the overall pattern of pseudodichotomous branching in their axes; however, key morphological features easily distinguish them from D. sylviae sp. nov. The species most similar in habit to D. sylviae sp. nov. is D. crouaniana J.Agardh (type locality West Indies), but it bears shorter pseudolateral branches, and broader and longer tetrasporangial stichidia than the new species. Unique among the species of Dasya , D. sylviae sp. nov. lacks post-sporangial cover cells in tetrasporangial stichidia

A Revision of the Genus Cryptonemia (Halymeniaceae, Rhodophyta) in Bermuda, Western Atlantic Ocean, Including Five New Species and C. bermudensis (Collins & M. Howe) comb. nov [post-print]

Cryptonemia specimens collected in Bermuda over the past two decades were analysed using gene sequences encoding the large subunit of the nuclear ribosomal DNA and the large subunit of RuBisCO as genetic markers to elucidate their phylogenetic positions. They were additionally subjected to morphological assessment and compared with historical collections from the islands. Six species are presently found in the flora including C. bermudensis comb. nov., based on Halymenia bermudensis, and the following five new species: C. abyssalis, C. antricola, C. atrocostalis, C. lacunicola and C. perparva. Of the eight species known in the western Atlantic flora prior to this study, none is found in Bermuda. Specimens reported in the islands in the 1900s attributed to C. crenulataand C. luxurians are representative of the new species, C. antricola and C. atrocostalis, respectively