Abstract
New records and a new section are reported for the genus Scleroderma (Basidiomycotina, Sclerodermataceae). Scleroderma sinnamariense is registered for the first time from Costa Rica and is moved from section Sclerangium to section Scleroderma for the well developed reticulum on the spores. Scleroderma echinatum is reported from Panama and the new section Caloderma is proposed to accommodate it. Scleroderma meridionale is reported from Mississippi (USA). Scleroderma septentrionale is reported for first time from North America. It was only known from northern Europe, and as S. macrorhizon in northern USA. Veligaster nitidum (Sclerodermataceae) is reported for the first time from Panama and from a new locality in Jalisco (Mexico).