Psorosperm (from the Greek ψωρα itch and σπερμα seed) is a former name of a number of parasitic protozoa that produce cystlike or sporelike structures in the tissue of hosts.
The term is now essentially obsolete.
J. Müller introduced the term in German (as Psorospermien) in 1841.
[2][3] Psorosperm was at one point believed to be the cause of Darier's disease.
[6] This article related to parasites is a stub.