Characteristics: Allergen (one species: Arthrinium sphaerospermum), Not considered a Pathogen or Toxigenic agent.
Description: It is often found in soil or decomposing plant material with a white coloration and has a texture of wooly tufts or long soft hairs. Over time, brown to black spore clusters develop. It is disseminated as a dry spore by wind. The only species of Arthrinium known as an allergen is Arthrinium sphaerospermum. It is not known to be a pathogen or toxigenic agent.