|Botryomyces species comprise a very small proportion of the fungal biota. This genus is not treated by many reference books on fungi. Described by the mycologist de Hoog, the multicelled irregularly septate, thick-walled "spores" may be regarded by some to be vegetative structures. Botryomyces caespitosus is a very rare agent of chromoblastomycosis-like subcutaneous infections after trauma. No information is available regarding other health effects, or toxicity. Allergenicity has not been studied. May be identified on surfaces by tape lifts or tease mounts from bulk samples. Our laboratory sees this organism on wood.