 He named it ""Pneumocystis jiroveci"" (corrected to "P. jirovecii" - see nomenclature above).Controversy existed over the relabeling of "P. carinii" in humans as "P. jirovecii", which is why both names still appear in publications.However, only the name "P. jirovecii" is used exclusively for the human pathogen, whereas the name "P. carinii" has had a broader application to many species.