[Balck piedra in chimpanzees from Zaire]

Black piedra was present in 21 of 72 museum pelts of chimpanzees (Pan paniscus and Pan satyrus) from Zaïre. In the absence of culture, the mycological characteristics observed in vivo, although insufficient to allow a definite identification of the Piedraia species involved, are almost identical with those of Piedraia quintanilhae Van Uden, De Barros-Machado & Castelo-Branco, 1963.