= Labyrinthomyces phymatodeus Zhang & Minter (1988). Syst. Ascomycetum 7,48.

Sporocarps up to 2.5 cm in diam., subglobose, with irregularly polygonal warts, 0-4-1 mm broad at base, 0-2-0-4 mm tall, in youth with parallel lines on the surface, brown, without a basal attachment. Gleba yellowish brown, chambers lined and at maturity filled with a hymenium of paraphyses, asci and spores. Peridium 500-1000 (-1300) fim thick, including warts 300-450 fim tall, two-layered; epicutis 200-300 µm thick, of pale brown cells up to 24 µm in diam. in a textura angularis; subcutis 300-700 (-1000) µm thick, of pale yellowish brown, loosely interwoven hyphae, up to 5 µm in diam. Trama of tissue similar to that of subcutis. Asci c. 310-350 x 25-35 fim, cylindrical, mostly 8-spored, thin-walled, nonamyloid. Paraphyses scattered, cylindrical, 2-3 µm in diam., hyaline, septate, equal in length to asci. Spores globose, 17-22 (-25) µm excluding the cyanophilic ornamentation of scattered to crowded, rounded warts 1-4 x 1-5 fim, smooth and hyaline in youth, pale yellow at maturity, the walls 2 µm thick.

Etymology: Latin phymatodea (warty), in reference to the peridium.

Presumptive Mycorrhizal Hosts
Associated with Leptospermum sp. (Zhang and Minter 1988).

Dingleya phymatodea differs from the other species with spores < 25 µm in diam. and in its much longer, relatively thin-walled asci. The holotype from New Zealand was recorded by Zhang and Minter (1988) as collected from Taranaki by H. Lintott. Dr Ross Beever of DSIR Plant Protection, Auckland, New Zealand (personal communication), indicates that the holotype was actually collected by B. Thompson of Taranaka and R. Dean in the Kaimanawa Range and sent to Mr Lintott of Christchurch, who forwarded it to PDD for study. Not many truffle-like fungal species have been recorded in both New Zealand and Australia. Dingleya phymatodea and Labyrinthomyces varius are the only two of the genera discussed in this paper to be so.