Morphological features of spores and sporocarps of Glomus coronatum (G
lomales, Zygomycetes) collected in Poland and Germany are described an
d illustrated. This arbuscular mycorrhizal fungus has so far been repo
rted only in Italy. In Poland G. coronatum was found in 17 of the over
500 soil samples examined. Of the six soils originating from Germany,
two contained spores of this fungus. Specimens from both Poland and G
ermany, when compared with those originally described, have smaller sp
ores with a narrower and more variably shaped subtending hypha.