Kaszab Zoltán (szerk.): A Magyar Természettudományi Múzeum évkönyve 70. (Budapest 1978)

Bohus, G.: Agaricus studies, VIII. (Basidiomycetes, Agaricaceae)

It can be distinguished from A. campester by the following features: Spores large (at the type: 8.5-10x5.5-7 u.m, at our gatherings: 8-10x5.5-7 u,m); apical pore mostly evident, not rarely fishmouth like; often enough there are numerous spores with abnormal measure and shape. It is difficult to find characteristics belonging to macroscopial features; the only remarkable thing is that A. pampeanus is somewhat more squat. This can be shown by the fact that in specimens with wide pileus the stem is relatively short — 6 : 2, 8 : 2.5, 8 : 3, 9 : 4, 11 : 4 cm. As for the rest: pileus whitish or later a little brownish too, more or less innato-fibrillose, fibrillose-squemulose or squamose. Fig. 1. Agaricus floccipes (type material, natural size). — Fig. 2. Psalliota campestris var. floccipes after MOELLER (1950) (natural size)