Rhodocollybia giselae Neville & Antonin is described as a new species from the Mediterranean region of Europe (Italy, France). It grows in thermophilous forests with Quercus ilex, Arbutus unedo and Pinus. Its features and differences from other members of the R. butyracea group are discussed.
Antonín V., Neville P. (1998): Rhodocollybia giselae, a new species from the Mediterranean region in Europe. – Czech Mycology 50(3): 181–184.