Consisting of an erect conidiophore with several roughened swellings along its length. The colourless 1-celled spores (conidia) are borne in grape-like clusters around each swelling. Similar to Arthrobotrys but the spores are never more than 1-celled. Parasitic on other fungi by means of small sucker-like structures called contact cells. Common on dead or dying plant parts, especially those not yet fallen to the ground. Holomorph unknown. Refs: Matsushima 1975; Sutton 1973