Phaeocollybia longistipitata sp. nov. from Costa RicaRoy E. Halling · First published 2008Open the Tome
Common mushrooms of the Talamanca Mountains Costa RicaRoy E. Halling, Gregory M. Mueller · First published 2004Open the Tome
Studies on Marasmiellus (Tricholomataceae) in the United StatesRoy E. Halling · First published 1987Open the Tome
An annotated index to species and infraspecific taxa of Agaricales and Boletales described by William A. MurrillRoy E. Halling · First published 1986Open the Tome
Tricholoma Fulvimarginatum (Tricholomataceae)Clark L. Ovrebo, Roy E. Halling · First published 1986Open the Tome
Additions to Marasmius section GlobularesRoy E. Halling, Dennis Desjardins, Richard V. Tish · First published 1985Open the Tome
Rhodocybe Pulchrisperma (entolomataceae)Roy E. Halling, Timothy J. Baroni · First published 1985Open the Tome
The genus Collybia (Agaricales) in the northeastern United States and adjacent CanadaRoy E. Halling · First published 1983Open the Tome
Thaxter's Thaxterogasters and other chilean hypogeous fungiRoy E. Halling · First published 1981Open the Tome
