MID CANTERBURY: Banks Peninsula, Hinewai Reserve, Fuchsia Falls, stream foam, 12 Sep 2001, PDD 74767.

Conidium with two apical arms and truncate attachment arm, 30 µm span. See Roldán et al. (1989) for a detailed description of this and similar species.

New record from New Zealand. Similarly to Gyoerffyella rotula this is also a true aquatic, Ingoldian, fungus. Many of the simpler tetra-radiate Ingoldian fungi are difficult to identify to species without isolation into pure culture in order to determine conidiogenesis and conidiophore morphology. However, conidia of the genera Gyoerffyella and Tetracladium are sufficiently morphologically distinct to allow identification based on observation of free conidia in foam samples. The genus Tetracladium was reviewed by Roldán et al. (1989). Other species of Tetracladium from New Zealand were recorded by Aimer & Segedin (1985). Their unidentified conidia referred to as Tetracladium sp. 1 and sp. 2 are unlikely to be congeneric with Tetracladium as currently circumscribed