RT info:eu-repo/semantics/article
T1 Vegetative and reproductive morphology of Sargassum orotavicum sp. nov. (Fucales, Phaeophyceae) from the Canary Islands (eastern Atlantic Ocean)
A1 Afonso Carrillo, Julio
A1 Díaz Villa, Tania
A1 Sansón Acedo, Marta
A2 BotánicaEcología y Fisiología Vegetal
A2 Botánica Marina
AB A population of seaweeds from the Canary Islands successively reported as Sargassum diversifolium, S. vulgaref. diversifolium, or S. vulgare was examined monthly atthe climax of vegetative and reproductive stage development to evaluate morphological taxonomic features.The primary and secondary blades are morphologicallydifferent (primary blades are spirally twisted and sinuouswith serrate to nearly entire margins, whereas secondaryblades are thinner with entire to slightly dentate-serratemargins); the vesicles are subspherical to slightly oblong,muticous or ending in a mucro or in a coronal blade; andthe receptacles are furnished with spines. These characters are not applicable to Sargassum diversifolium, orto an infraspecific taxon of Sargassum vulgare or S. furcatum as previously suggested, and consequently, Sargassum orotavicum sp. nov. is described. Nomenclaturalproblems related to the name diversifolium and the affinities of the species involved are presented. According totheir morphological characters, S. orotavicum, S. vulgareand S. furcatum belong to the subgenus Sargassum.However, S. vulgare and S. furcatum constitute genuinespecies of the subsection Cymosae of the section Malacocarpicae, whereas S. orotavicum appears related tospecies of the subsection Biserrulae of the sectionAcanthocarpicae.
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DS Repositorio institucional de la Universidad de La Laguna
RD 27-dic-2024