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Marine algal flora of São Miguel Island, Azores

BACKGROUND The macroalgal flora of the Island of São Miguel (eastern group of the Azores Archipelago) has attracted the interest of many researchers in the past, the first publications going back to the nineteenth century. Initial studies were mainly taxonomic, resulting in the publication of a checklist of the Azorean benthic marine algae. Later, the establishment of the University of the Azores on the Island ...

Shallow subtidal macroalgae in the North-eastern Atlantic archipelagos (Macaron...

Shallow subtidal macroalgal communities in the North-eastern Atlantic archipelagos (Azores, Madeira, Canaries and Cape Verde) were studied in order to identify their spatial organization patterns and the main drivers of change. Fifteen islands and 145 sites across 15º of latitude and 2850 km were sampled. We found high spatial variability across the scales considered (archipelago, island and site). The structur...

The genus Corallina (Corallinaceae, Corallinales, Rhodophyta) in the Azores (NE...

Morphological and anatomical characters used for segregating species within the genus Corallina (Corallinaceae, Rhodophyta) have been compiled and evaluated in 120 specimens collected in the Azores. The morphological, anatomical and statistical evaluation of the thirty four segregating characters for the genus Corallina performed in the present study revealed no species segregation, either showing no difference...

Development of conceptacles in Amphiroa (Corallinales, Rhodophyta)

Here, we describe the development of sporangial and gametangial conceptacles for Amphiroa beauvoisii and A. vanbosseae; sporangial conceptacles only for A. misakiensis; and gametangial conceptacles only for A. cryptarthrodia and A. rigida. The descriptions are based on the observation of histological preparations obtained from 112 specimens collected from the Gulf of California, in Mexico, and the Azores archip...

Segregating characters used within Amphiroa (Corallinales, Rhodophyta) and taxo...

A compilation of the published morphological and anatomical characters used in species diagnosis within the genus Amphiroa (Corallinales, Rhodophyta) was made and their expression was evaluated in 142 specimens collected in the Azores. An evaluation of the genus diversity in this archipelago was undertaken. Morphological and anatomical features here selected as diagnostic characters of Amphiroa in the Azorean p...

Taxonomic biodiversity of geniculate coralline red algae (Corallinales, Rhodoph...

A catalog and critical review of species and infraspecific taxa of non-fossil geniculate coralline red algae (Corallinales, Rhodophyta) previously reported from the Macaronesian region are presented along with an assessment of species diversity in the region. Published records of geniculate coralline algae are included along with comments relating to type material. Within the catalog, taxa are organized alphabe...

Choreonema thuretii and Pneophyllum confervicolum (Corallinales, Rhodophyta), n...

Diagnosing characters in Amphiroa (Corallinales) and the genus diversity evalua...

The effect of natural vs. artificial substrata on the development of benthonic ...

Typification and status of Amphiroa cryptarthrodia Zanardini (Lithophylloideae,...

The status of the name Amphiroa cryptarthrodia Zanardini has been uncertain, and there has been a lack of stability in this species nomenclature, in part related to its poor taxonomic foundation. The species has been considered conspecific with Amphiroa verrucosa Kützing nom. illeg. Another suggested taxonomic synonym has been Amphiroa rubra (Philippi) Woelkering. A type specimen for A. cryptarthrodia appears n...