Description:
The investigations csrried out on algae revealed the following species of fungi from the order of <i>Chytridialis</i> Hawksworth et al. (1995) parasitizing on algae: <i>Rhizophydium</i> subgulosum, R. ganlosporum, R. planctonicum, Entophlyctis rhizina</i> and <i> Harpochytrium hedinii</i>. These species arc new to Poland. The figure of resting spore of <i>Entophlyctis rhizina</i> is the fint graphic documentation of this species.