Dictyotrichocladium aquaticum gen. & sp nov and Minimelanolocus aquatilis sp nov from freshwater in Brazil's semiarid region

A new genus and species, Dictyotrichocladium aquaticum, is described and illustrated from submerged decaying leaves of Calophyllum brasiliense in the Brazilian semiarid region; it is distinguished by macronematous, sometimes micronematous conidiophores, and monoblastic, terminal conidiogenous cells that produce solitary, long pyriform, cylindrical, long clavate, turbinate to vermiform, curved or sigmoid, dictyoseptate, black or dark pigmented conidia that usually do not secede but remain attached after maturation. A new species, Minimelanolocus aquatilis, characterized by obclavate, 3-5-euseptate, verruculose, pale brown conidia, is described and illustrated from decaying twigs of an unidentified plant in the Brazilian semiarid region.