Rhinosporidiosis is a localized disease of mucous membranes, principally found on the mucous membranes of nasal passages. I t has also been described as occurring in the mucous membranes of the eye and other parts of the body.'8 The disease is caused by Rhinosporidium seeberi, which has the morphologic characteristics of a fungus,' but so far neither culture nor transfer of the fungus from huma...