ADDITIONAL SPECIMENS EXAMINED: 5 collections were examined in addition to the holotype. All were from New Zealand, and included: AUCKLAND: Parau, Nihotupu Dam, on Cyathea medullaris, P.R. Johnston, E. Horak, B. Segedin, 6 Jul 1981 (PDD 41845); Waitakere Ra., Sharps Bush, on Melicytus ramiflorus J. R. et G. Forst, P. R. Johnston, 11 Jun 1982 (PDD 42785).

Ascocarps deeply immersed, 0.2-0.4 mm diam., round, opening widely; crystalline margin entire or lacerate. Margin in cross-section 35-50 µm wide, splitting away from hymenium when dry. Crystals forming a 30-40 µm wide, wedge-shaped cap in top half of margin. Wall 5-20 µm wide, extending under the subhymenium and half way up the margin. Wall under the subhymenium comprising gelatinous, hyaline, 1.5-2 µm diam., long-celled hyphae; at sides of ascocarp, hyphae are 2-3 µm diam., nongelatinous, with brick-shaped cells. Periphyses 5-15 x 1-1.5 µm, unbranching. Periphysis layer sparse on collections from woody hosts, well developed on those from Cyathea. Paraphyses 1-1.5 µm diam., propoloid, nonamyloid. Asci 60-85 x 4-7 µm, cap 2 - 4µm thick with a broad central pore, 8-spored. Spores clavate, 22.5-29 x 3.5- 4.5 µm, 4-9 transverse septa, becoming constricted at septa, hyaline.
characteristics IN culture: Spores germinating on agar plates within 3-4 days. Colonies growing slowly on OA and ME, 1-2 cm diam. after 4 months, surface of colony yellow, undulate, sometimes splitting and folding back in small flaps, no aerial mycelium, sterile.

Habitat: Dead tissue of woody plants and tree ferns.

Ascocarpi immersi, profunde cupulati, 0.2-0.4 mm diam., margine integro vel lacerato, albo, in sectione transversali 35-50 µm crasso, siccus ab hymenio se abrumpens. Stratum crystallinum 30-40 µm crassum. Stratum parietis 5-20 µm crassum, hypharis 1.5-3 µm diam., achromis. Periphysoidea 5-15 x 1-1.5 µm non ramosa. Paraphyses filiformes, ramosae, in iodo non caerulescentes. Asci 60-85 x 4-7 µm, apice 2-4 µm crassi, 8-spori. Sporae clavatae, 22.5-29 x 3.5-4.5 µm, 4-9 septatae.
Holotypus: PDD 41847 ex Melicytus sp.

Etymology: clavata = clavate; refers to ascospore shape.

Holotype: New Zealand: AUCKLAND: Waitakere Ranges, Mill Bay, on Melicytus sp., P. R. Johnston, 17 Nov 1981 (PDD 41847).