Abstract
Thirty‐eight species of micro‐fungi are described as newly recorded in New Zealand. These fungi are mainly found in association with a specific exotic host, Quercus ilex , or the hitherto uninvestigated ecological group of aero‐aquatic fungi. Six are described as new: Bactrodesmium nothofagi, Dactylaria leptospermi, Pleurothecium leptospermi, Polyscytalum ciliatum, Pseudoclathrosphaerina spiralis , and Zanclospora ureweri. An existing invalid name in the literature, Pseudaegerita foliicola , is provided with a validating description. Keys are provided to the genera Pseudaegerita, Thozetella , and aero‐aquatic fungi with helicoid, non‐wettable or air‐trapping propagules.