Cystoseira barbatula Cystoseira graeca Carpodesmia barbatula The Fucales (Ochrophyta, Phaeophyceae) of the Island of Pantelleria (Sicily Channel, Mediterranean Sea): a new contribution Marletta, Giuliana Lombardo, Andrea Italian Botanist 2023 2023-06-15 15 137 163 50EB644E-6A04-5C36-A6AD-3135F910462A (Kuetzing) Molinari & Guiry Molinari & Guiry 2020 Kuetzing Phaeophyceae Fucaceae Ericaria CoL Chromista Ericaria barbatula Fucales 0 137 Ochrophyta species barbatula   Fig. 10A, B, C, D   Cystoseira barbatula Kuetzing. Basionym.  Cystoseira graecaSchiffner ex Gerloff & Nizamuddin, Carpodesmia barbatula( Kuetzing) Orellana & Sanson. Synonyms.  Morphology of specimens from Pantelleria.   E. barbatulais caespitose, attached to the substrate by an irregular basal disc, from which several cylindrical, thin and blackish axes take origin. The axes are tuberculate for the presence of basal stumps of the fallen primary branches. The apices are strongly prominent and smooth. Primary and higher order branches are cylindrical. During the monitoring activities, this species was found fertile. The receptacles are borne on the apical parts of branchlets and are compact, tuberculate; they can bear 1-2 spinose appendages.  Habitat.   E. barbatulawas observed during snorkelling in shallow environments (from 0.5 to 3 m of depth) along sheltered and moderately exposed coasts at Bue Marino, Kattibuale, Martingana, Scauri, Kuddie Rosse and Arenella.  Distribution. Cyprus, Greece, Libya, Malta, Italy and Tunisia (  Blanfuneet al. 2022).  Remarks. Comparing our data with the study by Alongi et al. (2004), this species appears to have expanded its distribution along the island since then. According to Neiva et al. (2022), this entity falls in the  Ericaria crinitacomplex, which includes samples identified as  E. crinita,  E. barbatulaand  E. giacconeiD. Serio & G. Furnari.   Figure 10.  Ericaria barbatula Abranches with fertile receptacles) Bhabit C, Dprominent and smooth apex.