Pyrenula atrofuscescens Vain.

Selection criteria. Country: Puerto Rico. Associated organism: any

Number of records. 2. Date information. November 1915 (Nov). Locations. Puerto Rico Island, state not noted. Associated organism. Plantae indet. (bark). Literature. Imshaug (1957) page(s) 19; Vainio (1929) page(s) 39.