Panaeolus oligotrophus : A new species from central Florida, with notes on Panaeolus pumilus and Crucispora rhombisperma
Mycologia October 7, 2025 Scott Ostuni, Pietro Voto, Joshua Birkebak et al.
A new species of fungus, Panaeolus oligotrophus, was discovered in central Florida. It looks similar to Panaeolus cinctulus but grows in nutrient-poor sandy soil, a rare habitat for this genus. Its physical features and DNA were analyzed and compared with other Panaeolus species. The study also found that the type specimen of Panaeolus pumilus is actually the same species as P. cinctulus. Additionally, another species, Crucispora rhombisperma, was reclassified into the genus Panaeolus and renamed Panaeolus rhombispermus because of its unusual spore shape. The potential for psilocybin production in the new species was checked by sequencing its genome.