Michael Wynne

University of Michigan | U-M · Department of Ecology and Evolutionary Biology

Members of the benthic marine brown macroalgal family Scytosiphonaceae are widely distributed in the tropical to warm temperate coasts and offshore reefs of major ocean basins. As ecologically important components of shallow intertidal down to mesophotic depths, scytosiphonacean taxa contribute to primary production and serve as food and habitat to...

In the volume "Hydrophytologiae Regni Neapolitani", published by Delle Chiaje in 1829, 100 species of benthic marine algae of the Gulf of Neaples (Mediterranean Sea, Italy) are described and illustrated with colored images. In this study the marine algae depicted in the 100 plates are analyzed with the goal of identifying them in terms of present-d...

The continental coasts and remote islands in the high‐latitude Southern Hemisphere, including the subantarctic region, are characterized by many endemic species, high abundance of taxa, and intermediate levels of biodiversity. The macroalgal flora of these locations has received relatively little attention. Filamentous green algae are prolific in t...

Checklist of benthic marine algae of the tropical and subtropical Western Atlantic.

The fifth addendum to Schneider and Wynne’s 2007 “A synoptic review of the classification of red algal genera a half century after Kylin’s 1956 ‘ Die Gattungen der Rhodophyceen ’” is presented, covering the names of genus- and higher-level taxa added or modified since our fourth addendum ( Bot. Mar. 62: 355–367). Since the original compilation, we...

Southern New England and New York specimens of Spyridia ‘ filamentosa ’ were sequenced for the mitochondrial COI-5P and chloroplastic rbc L genes and determined to be distinct from Mediterranean (type locality) specimens of the same taxon. A little-known species name, Spyridia americana Durant, is applied to specimens collected from the northeaster...

The recent segregation of 12 genera in the tribe Streblocladieae suggests that the taxonomy of some species belonging to Polysiphonia sensu lato is updated with the transfer and the proposal of new combinations. Accordingly, six new additions to the tribe Streblocladieae on the basis of morphological and molecular analyses are presented as a conseq...

Epizoic macroalgae collected from the skin of West Indian manatees included specimens of the red algal family Delesseriaceae. Morphological and rbcL sequence analyses indicated that these specimens represented two novel species of Caloglossa. One species, described here as Caloglossa kamiyana Freshwater, Cath.E. Miller & Frankovich sp. nov., had be...

Routine DNA barcoding with the chloroplast gene tufA identified novel records of an unknown and denuded (i.e. lacking branchlets) Caulerpa species previously reported from the Florida Middle Grounds. tufA barcoding not only confirmed the matching molecular identity of this taxon with several newly collected denuded specimens from shallow habitats o...

The roots of the red mangrove, Rhizophora mangle, provide a nursery habitat for many species, due to the tridimensional structure they provide, which delimits an area difficult to access to large predators. Moreover, they provide a hard substrate for many benthonic species, which attach to the roots and contribute to the tridimensional structure of...

Background: There are few studies about Nemacystus on the Atlantic coast, and N. howei has been reported only once for Mexico; that record, however, did not provide a description of this species. Question: What are the morphological characteristics of Nemacystus howei and its distribution on the Yucatan coast? Species study: Macroalgae, Phaeophyc...

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...

The taxonomy of the genus Eucheuma J. Agardh (1847) has long been considered as among the most challenging of commercially and economically important red seaweeds as it exhibits extreme polymorphism and highly plastic morphologies (Ganzon-Fortes et al. 2012). Efforts to clarify the taxonomy of these seaweeds were prompted by the development of a cu...

The species of the family Halymeniaceae are characterised by their multiaxial thallus and sexual reproduction, involving carpogonial branches and auxiliary cells borne in filamentous ampullae and tetrasporangia decussately or cruciately divided. Most species of the genera Thamnoclonium, Spongophloea, Codiophyllum and Carpopeltis belong to the group...

The authorship of Amphiroa peruana (Corallinales) is discussed, and this name is credited to W.R.Taylor rather than Areschoug.

Martensia incipiens sp. nov. is described from the Sultanate of Oman, based upon collections made in the Governate of Dhofar, Northern Arabian Sea. The type locality is Sadah. The delicate blades display a dazzling iridescence with pink to lilac colors in the living condition. The distinguishing morphological feature of this novel species is that t...

https://deepblue.lib.umich.edu/bitstream/2027.42/153777/2/tax12137_am.pdf

a coverage of international postage stamps with images of micro-algae.

New records of subtidal benthic marine algae from the State of Veracruz, the southern Gulf of Mexico, are presented, which include 7 species and 2 forms. The material was collected from 6 sampling forays at 4 locations between October 2013 and September 2017. The collection sites included the “Ana Elena” and “Riva Palacio” shipwrecks and some poorl...

The fourth addendum to Schneider and Wynne’s 2007 “A synoptic review of the classification of red algal genera a half century after Kylin’s 1956 ‘ Die Gattungen der Rhodophyceen ’” is presented, covering the names of genus- and higher-level taxa added or modified since our third addendum ( Bot. Mar. 59: 397–404). Since that synopsis, we added 21 ne...

Nomenclatural proposals for a genus of freshwater red algae.

Red algae are the most conspicuous component in algal drifts that periodically arrive on the coasts of the Yucatan Peninsula. Given the presence of agars and carrageenans in their cell wall and the synthesis of secondary metabolites that act as antitumors or antioxidants, most of these species are highly valued in the international market. However,...

On the basis of COI-5P, cox2-3 spacer, RuBisCo spacer, and rbcL sequences, Eucheuma was resolved as a paraphyletic genus in the Solieriaceae. Specimens of E. isiforme from the Yucatan Peninsula and Florida form an independent lineage in the family that was also different from E. denticulatum, the generitype. To accommodate this species, we describe...

The Veracruz Reef System National Park (PNSAV) is located in the central region of Veracruz, off the coast of the municipalities of Veracruz, Boca del Río and Antón Lizardo. It is a complex and important system within the Gulf of Mexico, since it has been declared a biosphere reserve by UNESCO, a Ramsar wetland and an essential component of the sou...

Morphological and anatomical evidence is presented to support the taxonomic judgment that Talarodictyon tilesii Endlicher is conspecific with Hydroclathrus stephanosorus Kraft in Kraft & Abbott. Because the former name has nomenclatural priority over the latter name, Hydroclathrus tilesii (Endlicher) comb. nov. is proposed.

Treats nomenclature of some red algal genera.

A taxonomic study was recently carried out on species of the tribe Ceramieae (Ceramiaceae, Rhodophyta), following an evaluation of previously published records and on the basis of field and laboratory investigations. In Morocco, the tribe is represented by 5 genera: Ceramium (21 taxa at specific and infraspecific levels), Gayliella (3 species), and...

An updated checklist of the benthic marine algae (seaweeds) of the Northern Arabian Sea coast of the Sultanate of Oman is presented, with a total of 402 taxa, consisting of 75 taxa of brown algae (Phaeophyceae), 238 taxa of red algae (Rhodophyta), and 89 taxa of green algae (Chlorophyta). Obsolete names and taxonomic synonyms as well as information...

algal nomenclature

Ten species of red macroalgae are newly reported for the Seaflower International Biosphere Reserve in the Caribbean Sea. Of these taxa, four have been previously reported for the Colombian Caribbean: Dohrniella antillarum, Halydictyon mirabile, Taenioma nanum, and Aglaothamnion cordatum. The remaining six species are new records for the country: Ca...

The green alga Pseudocodium okinawense is reported for the first time from the Mediterranean Sea. The collection of this species from a 54-m depth on a sandy-mud bottom on August 2017 near Kalkan, Turkey, also represents the first report of the genus Pseudocodium from the Mediterranean. The species was previously reported from southern Japan (type...

Se presentan diez nuevos reportes de especies de macroalgas rojas para la Reserva Internacional de la Biosfera Seaflower en el Mar Caribe. Cuatro taxones fueron previamente citados para el Caribe colombiano: Dohrniella antillarum, Halydictyon mirabile, Taenioma nanum y Aglaothamnion cordatum. Las restantes seis especies son nuevos registros para el...

Living material of a marine red alga consisting of a prostrate basal system and small erect blades was isolated from laboratory-incubated substratum collected in a sea cave at 7 m depth on Easter Island in the Southeast Pacific. The alga in culture was morphologically identified as Apoglossum gregarium (E.Y. Dawson) M.J. Wynne. Molecular analyses (...

Codium pulvinatum sp. nov. (Bryopsidales, Chlorophyta) is described from the southern shores of Oman and from the Mediterranean shore of Israel. The new species has a pulvinate to mamillate–globose habit and long narrow utricles. Molecular data from the rbcL gene show that the species is distinct from closely related species, and concatenated rbcL...

Dos géneros de algas rojas Alsidium y Gloiocladia se reportan por primera para Cuba. Las algas fueron recolectadas en la costa de la región centro-sur de la isla. Las muestras fueron identificadas en base a características morfológicas, pero debido a la ausencia de estructuras reproductivas, Alsidium no se definió en un nivel específico. Por otra p...

Northwestern Pacific specimens of Callophyllis radula, Callophyllis rhynchocarpa, Pterosiphonia bipinnata and Sparlingia pertusa, all with type localities in Far East Russia, were genetically compared to reportedly conspecific populations in the Northeast Pacific. Analyses resolved genetically distinct species with a biogeographical split between t...

Polysiphonia is the largest genus of red algae, and several schemes subdividing it into smaller taxa have been proposed since its original description. Most of these proposals were not generally accepted, and currently the tribe Polysiphonieae consists of the large genus Polysiphonia (190 species), the segregate genus Neosiphonia (43 species) and 1...

The morphology of the crustose brown alga Hapalospongidion gelatinosum is described in detail based on specimens collected on the Mexican tropical Pacific coast. Molecular phylogenetic analysis of DNA sequences of chloroplast-encoded RuBisCo large subunit (rbcL) and mitochondrial-encoded cytochrome c oxidase subunit 1 (Cox-1) genes, reveals that ou...

A third addendum to Schneider and Wynne’s (2007) “A synoptic review of the classification of red algal genera a half century after Kylin’s 1956"

As a result of an increase in our knowledge thanks to recent collecting efforts as well as reflecting taxonomic and nomenclatural advances, this revision of the benthic marine plants of Martinique (French West Indies) complements the previous checklist dating from 1999. The present list totals 343 taxa of benthic macroalgae, comprised of 186 taxa o...

The red algal species Griffithsia capitata (Ceramiales, Rhodophyta), native to the Canary Islands and Madeira, is reported for the first time from San Andres Island, International Biosphere Reserve Seaflower, Caribbean Sea. All specimens, which are small and easily overlooked, were found in coral reef habitats, at depths in the range of 9-17 m, gro...

The existence of massive cryptic diversity in algae makes linking DNA-based lineages to existing taxa exceedingly difficult. A better integration of historical collections into modern taxonomic research is therefore highly desirable. Using the brown algal genus Lobophora as a test case, we explore the feasibility of linking taxonomic names to clade...

We provide the first detailed description of the tetrasporophyte of the red algal species Monosporus indicus Børgesen (Wrangeliaceae, Ceramiales) and its first record from the Mediterranean Sea. This prostrate, filamentous epiphytic species, which has been recorded from tropical and subtropical locations in the Indian, Pacific and Atlantic Oceans,...

It is shown by the heterogenous nature of Borzi’s description and illustrations that Hormotila mucigena Borzi, the generitype of Hormotila, should be redefined. Borzi’s original description and accompanying illustrations of Hormotila (constituting the protologue) correspond to a minimum of five distinct genera of green algae. Two distinct concepts...

Evidence is presented that the marine macroalga Pseudobryopsis papillata Nasr (Bryopsidaceae, Chlorophyta), described by Nasr in 1944 from the Red Sea, is conspecific with the Mediterranean generitype Pseudobryopsis myura (J. Agardh) Berthold in Oltmanns. Although Ps. myura was originally depicted as having non-papillate gametangia, recent and past...

Earlier and more recent history of the relationship between the desmid genera Acutodesmus and Tetradesmus (Sphaeropleales, Chlorophyta) is discussed. It is pointed out that current taxonomic treatments are using the name Acutodesmus (Hegewald) Tsarenko, which dates as a genus only from 2001. Taxonomic treatments are now including in Acutodesmus A....

Abstract: The occurrence in Morocco of three species of red algae new to the Mediterranean Sea is reported: Polysiphonia havanensis sensu Børgesen (Ceramiales, Rhodomelaceae), Diplothamnion jolyi (Ceramiales, Wrangeliaceae), and Champia compressa (Rhodymeniales, Champiaceae). All were collected in Al-Hoceima National Park, a protected area of the M...

The red alga Gayliella fimbriata (Ceramiaceae, Rhodophyta) is reported for the first time from the Mediterranean Sea. This species was collected growing as an epiphyte on Laurencia obtusa in the sublittoral zone at Antalya (Mediterranean coast of Turkey). Gayliella fimbriata is characterized by its protruding clavate gland cells. Features to distin...

The growth, reproduction, and senescence patterns of the epiphytic marine alga Phaeosaccion collinsii were tracked over two consecutive seasons at its type locality of Little Nahant, Nahant, MA (USA). We investigated the potential and/or combined effects of temperature and ambient nutrient supply (NO3- and PO43-) on the phenology of this ephemeral...

During a biodiversity expedition to the northern cays of the Archipelago of San Andrés, Old Providence and Saint Catalina, we collected macroalgal samples along Quitasueño Bank, a submerged 60 km-long coralline bank. This is the first phycological study on the bank. We present a preliminary list of 76 macroalgae, including ten species of cyanobacte...

The occurrence of the red algal species Hypoglossum caloglossoides (Delesseriaceae, Ceramiales) is reported for the first time from shallow sub-littoral sites in both the Mediterranean Sea and the Red Sea. This small but morphologically distinctive species, originally described from Lord Howe Island in the southwestern South Pacific Ocean, has been...

Specimens of Palisada iridescens (Rhodomelaceae) were studied morphologically and molecularly from the Mexican Caribbean. The phylogenetic position of this species was inferred by analysis of chloroplast-encoded rbcL gene sequences of 42 taxa, using one ceramiacean and four rhodomelacean taxa as outgroups. Molecular phylogenetic results corroborate...

A new pelagophyte genus and species, Aureoscheda bahamensis, were described from a shallow marine habitat on the north shore of San Salvador Island Bahamas, Caribbean Sea. The alga typically appeared as small, delicate golden sheets that reached ∼ 10 mm; however, earlier stages may have been sacs that ultimately split open into the flat monostromat...

Abstract: The genus Neoralfsia was newly described by P.-E. Lim and Kawai on the basis of rbc L sequence data from specimens from Japan and Malaysia identified as Neoralfsia expansa , and N. expansa [ Myrionema ( ? ) expansum ] from Mexico was designated as the type species. Our maximum likelihood and Bayesian analyses show that specimens of N. exp...

Syringoderma abyssicola, the little known type species of an apparently dictyotalean genus, is reported on after field and culture observations. Fungal infestations of the genus Eurychasma produce conspicuous sporangia which give the appearance of reproductive structures of the alga itself, and perhaps SETCHELL and GARDNER observed these when they...

Morphological and molecular evidence is provided to further document the status of the enigmatic taxon known as Caulerpa floridana W.R. Taylor from White Shoal, Dry Tortugas, Florida. DNA sequencing of three historical herbarium specimens (WRT329, WRT345 and WRT349) housed at the University of Michigan Herbarium (MICH) demonstrated the molecular se...

An updated checklist of the benthic marine algae (seaweeds) of Barbados, Lesser Antilles, is presented, with a total of 308 taxa, consisting of 168 taxa of red algae (Rhodophyta), 49 taxa of brown algae (Ochrophyta), and 91 taxa of green algae (Chlorophyta). Current nomenclature is provided. Obsolete names and taxonomic synonyms are indicated in br...

Attention is called to the failure of P.J.L.Dangeard to designate Types for essentially all of his new algal taxa proposed after 1957. Designation of Types was a requirement of the Melbourne Code starting 1 Jan., 1958. So the numerous names of both genera and species are invalid. Some of Dangeard's species were later transferred to other genera or...

Phylogenetic relationships of Dichotomaria (Nemaliales, Rhodophyta) with the proposal of Dichotomaria intermedia (R.C.Y. Chou) comb. nov. Abstract: Species delineation in the calcified red algal genus Dichotomaria is difficult due to the high degree of morphological similarity observed in these algae; thus, species descriptions are based on a limit...

This note is to call attention to a number of marine algal taxa from the Antilles that were described by Placide Duchassaing in his 1850 work Animaux radiaires des Antilles. The mid-19th century was a period when the distinction between marine invertebrates and some calcified benthic marine algae was still not always clear. The names of these algal...