Abstract
Digitodesmium, recurvum sp. nov., recorded from freshwater habitats in Hong Kong, is described and illustrated. Digitodesmium recurvum is characterized by chiroid, olivaceous brown, euseptate conidia composed of 4–6 apically recurved arms. Characteristics of the conidia of the two known species of Digitodesmium are summarized, and a comparison with other similar species is also provided.