MATERIAL EXAMINED: NEW ZEALAND, North Island, Auckland Region, Hunua Ranges, Wairou-Cosseys Track, on decaying leaves of Freycinetia banksii, 9 May 1996, S.R. Whitton HKU(M)5051 (IFRD210-019); North Island, Auckland Region, Hunua Ranges, Workman Track, decaying leaves of F. banksii, 8 May 1996, S.R. Whitton HKU(M)5049 (IFRD210-017). NOTES: Hydropisphaera arenuloides is characterised by globose ascomata that are sessile and more or less glabrous. Asci are 60–100 × 9–18 µm and ascospores are 13–24 × 3.5–5 µm, fusiform, 1-septate, not constricted at the septum and striate (Samuels, 1976a). Based on ascomatal morphology and dimensions, these specimens are best treated as H. arenuloides. No taxonomically significant differences between the current specimens and those reported by Samuels (1976a) were observed.