6533b7cffe1ef96bd1259a08

RESEARCH PRODUCT

Isoëtes sabatina (IsoëtaceaeLycopodiophyta), a new aquatic species from central Italy

Mattia M. AzzellaAngelo Troia

subject

Mediterranean climatebiologyEcologySettore BIO/02 - Botanica SistematicaPlant Sciencebiology.organism_classificationIsoëtesLycopodiophytaAquatic speciestaxonomyIsoetaceae Isoetes Italy Lycopodiophyta Mediterranean region taxonomyItalyIsoetesIsoetaceaeTaxonomy (biology)Isoëtaceae; Isoëtes; Italy; Lycopodiophyta; Mediterranean region; taxonomyLycopodiophytaMegasporeMediterranean regionEcology Evolution Behavior and SystematicsIsoëtaceae

description

The new species Isoetes sabatina is described and illustrated. Morphological, anatomical, and ecological characters are given. It differs from the similar I. echinospora by several characters, such as megaspore ornamentation and size, microspore size, velum extension and form, and also for its ecology. A table showing the main differential characters of the new species compared with those of the other European aquatic species is presented. So far, the species is known from a single locality (Bracciano Lake, central Italy), having a peculiar ecology and within the Mediterranean bioclimate.

10.1080/11263504.2013.782902http://hdl.handle.net/11573/1641152