Abstract A description is provided for Trichoglossum walteri . Some information on its associated organisms and substrata, habitats, dispersal and transmission and conservation status is given, along with details of its geographical distribution (North America (Canada (Ontario and Quebec), Mexico and USA (Alabama, Connecticut, Delaware, Indiana, Iowa, Maine, Maryland, Massachusetts, Michigan, Minnesota, New Hampshire, New Jersey, New York, North Carolina, Pennsylvania, Tennessee and Virginia)), Central America (Costa Rica), South America (Argentina and Brazil), Asia (China, Sichuan, Tibet, India (Himachal Pradesh, Jammu and Kashmir, Uttarakhand and West Bengal), Japan, Nepal, Papua New Guinea, Philippines and Korea Republic), Atlantic Ocean (Portugal (Azores)), Australasia (Australia (Victoria), New Zealand and Norfolk Island), Caribbean (Jamaica and Trinidad and Tobago), Europe (Austria, Belgium, Denmark, Finland, Germany, Ireland, Norway, Poland, Slovakia, Sweden, Switzerland and UK), Pacific Ocean (New Caledonia)). No reports of negative economic impacts of this fungus have been found.