Halofilum Darienko & Pröschold.

Halofilum is a filamentous genus of mostly coastal marine algae that accommodates species previously assigned to Dilabifilum . The short-branched, dense and easily disintegrable filaments consist of vegetative cells containing parietal chloroplasts with pyrenoids (Fig. 23) and reproduce by budding or cell division (Darienko & Pröschold 2017). The genus currently harbours three species (Guiry & Guiry 2022) including H. ramosum, which was isolated from Wahlenbergiella and Hydropunctaria lichens (Gasulla et al. 2019) as well as from stone cracks of coastal rocks in Porth Trecastell, United Kingdom and walls of archaeological remains in Carthage, Tunisia (Darienko & Hoffmann 2010; Darienko & Pröschold 2017).