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Two new ascomycetes from rainforest litter in Costa Rica

     Unitat de Microbiologia, Facultat de Medicina i Ciències de la Salut, Universitat Rovira i Virgili, C/ Sant Llorenç 21, 43201 Reus, Tarragona, Spain

L. Umaña

     Instituto Nacional de Biodiversidad (INBio), Apartado Postal 22-3100, Santo Domingo, Heredia, Costa Rica

J. Guarro

     Unitat de Microbiologia, Facultat de Medicina i Ciències de la Salut, Universitat Rovira i Virgili, C/ Sant Llorenç 21, 43201 Reus, Tarragona, Spain

M. Mata

     Instituto Nacional de Biodiversidad (INBio), Apartado Postal 22-3100, Santo Domingo, Heredia, Costa Rica

Two new ascomycetes, Boerlagiomyces costaricensis (Pleosporales) and Scopinella musciformis (Sordariales sensu lato), from litter samples collected in rainforests of Costa Rica, are described and illustrated. Boerlagiomyces costaricensis has globose, ostiolate ascomata covered by numerous setae-like hairs; cylindrical, fissitunicate asci without apical structures; and large, fusiform, muriform, hyaline to pale brown ascospores. Scopinella musciformis is characterized by ostiolate ascomata with a few compact clusters of hypha-like hairs distributed on the peridial surface and a long neck; ovate to ellipsoidal unitunicate asci; and small quadrangular ascospores with diagonal germ slits.

Key words: Ascomycota, Central America, Ceratostomataceae, Loculoascomycetes, rainforest, Tubeufiaceae