Sequencing type material resolves the identity and distribution of the generitype Lithophyllum incrustans, and related European species L. hibernicum and L. bathyporum (Corallinales, Rhodophyta). Issue 4 (24th July 2015)

• Record Type: Journal Article
• Authors: Hernandez‐Kantun, Jazmin J.; Rindi, Fabio; Adey, Walter H.; Heesch, Svenja; Peña, Viviana; Le Gall, Line; Gabrielson, Paul W.; Lane, C.
• Is Part Of: Journal of phycology. Volume 51:Issue 4(2015)
• Page Start: 791
• Page End: 807
• Publication Date: 2015-07-24
• Subjects: Algae -- Periodicals; 579.8
• DOI: 10.1111/jpy.12319
• Languages: English
• ISSNs: 0022-3646

Abstract

<abstract abstract-type="main" id="jpy12319-abs-0001"> <title> <x xml:space="preserve">Abstract</x> </title> <p>DNA sequences from type material in the nongeniculate coralline genus <italic>Lithophyllum</italic> were used to unambiguously link some European species names to field‐collected specimens, thus providing a great advance over morpho‐anatomical identifi‐cation. In particular, sequence comparisons of <italic>rbc</italic>L, COI and <italic>psb</italic>A genes from field‐collected specimens allowed the following conclusion: the generitype species, <italic>L. incrustans</italic>, occurs mostly as subtidal rhodoliths and crusts on both Atlantic and Mediterranean coasts, and not as the common, NE Atlantic, epilithic, intertidal crust reported in the literature. The heterotypic type material of <italic>L. hibernicum</italic> was narrowed to one rhodolith belonging in <italic>Lithophyllum</italic>. As well as occurring as a subtidal rhodolith, <italic>L. hibernicum</italic> is a common, epilithic and epizoic crust in the intertidal zone from Ireland south to Mediterranean France. A set of four features distinguished <italic>L. incrustans</italic> from <italic>L. hibernicum</italic>, including epithallial cell diameter, pore canal shape of sporangial conceptacles and sporangium height and diameter. An <italic>rbc</italic>L sequence of the lectotype of <italic>Lithophyllum bathyporum</italic>, which was recently proposed to accommodate Atlantic intertidal collections of <italic>L. incrustans</italic>, corresponded to a distinct taxon hitherto known only from Brittany as the subtidal, bisporangial, lectotype, but also occurs intertidally in Atlantic Spain. Specimens from Ireland and France morpho‐anatomically identified as <italic>L. fasciculatum</italic> and a specimen from Cornwall likewise identified as <italic>L. duckerae</italic> were resolved as <italic>L. incrustans</italic> and <italic>L. hibernicum</italic>, respectively.</p> </abstract>