The global distribution of Licea testudinacea is updated with a new record from a mangrove environment in Brazil. This myxomycete possesses a broad global distribution despite the scarcity of records, which is probably due to its small size and inconspicuous sporocarp color,
which make it difficult to observe in the field. The species occurs on all continents, from sea level up to elevations ≥3000 m, and is known to sporulate in several types of forests, grasslands, taigas and tundras. In the Neotropics, it has been recorded in Mexico, Guatemala and Costa Rica,
in forested and non-forested areas at high elevations and with high rainfall. The present study represents the first record of the occurrence of L. testudinacea in South America and the first for a mangrove environment throughout its range. The record is based on sporulating specimens
found on a living tree of Rhizophora mangle (Rhizophoraceae) in the state of Pernambuco, Northeast Brazil. The specimens of L. testudinacea are described and illustrated. Characteristic features of its microhabitat, its global distribution and an identification key for sessile
species with peridial dehiscence by plates and free and warted spores are presented.