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 re
curved arms. Characteristics of the conidia of the two known species of Dig
itodesmium are summarized, and a comparison with other similar species is a
lso provided.