A collection in K labelled Agaricus erebius (H1257/80) is undoubtedly a member of sg. Agrocybe possessing spores (7-) 7.5-8.5(-10) x 5.5-6(-6.5) µm with a distinct truncate germ-pore. In the A. erebia group the spores are fusiform to boletoid and lack a germ-pore (i.e. sg. Aporus sect. Velatae). Horak (1971b) also infers that this is a member of the genus Agrocybe. The dark coloured pileus suggested from the original naming indicated that this is very different from anything we know. It is too young to extract any further information.

The K material of seven basidiomata and one isolated pileus possesses the following characters (compounded from all specimens);

Basidiospores (7-) 7.5-10 x 5.5-6(-6.5) µm, ovoid, broadly elliptic in face-view, slightly flattened in side-view. Basidia 4-spored, c. 25 x 7.5 µm, clavate. Cheilocystidia gill-margin grazed; pleurocystidia ventricose to shortly lageniform, 25-35 x 9-15 µm, apex 7.5-8 µm broad. Pileipellis damaged, a mixture of filamentous and some vesicular cells.

Another specimen in PDD, 682 also labelled Pholiota near erebia (on ground, Weraroa, 3 x 1919, G H Cunningham), is heavily moulded but might represent the same species; both lageniform cheilo- and pleurocystidia were located. It has similarly shaped spores of parallel size and although the basidiomata are poorly preserved similar pleurocystidia to those on the K material were found (27-38 x 12.5-14 µm, apex 5.5-8.5 µm); cheilocystidia are present, vesiculose to mucronate with obtuse apex, 20-25 x 13-14 µm, apex 4 µm.