Marasmiellus lateralis Bas & Noordel.

Diagnosis original:  PERSOONIA - AN INTERNATIONAL MYCOLOGICAL JOURNAL - VOLUME 15 - PART 3 - 1993
Basidiomata gregaria, pleurotoidea, 3—8 mm lata; pileus albus, haud hygrophanus, nec striatus, omnino pruinosus vel subtomentosus; lamellae subventricosae, albae; stipes nullus vel valde reductus, albus, pruinosus. Sporae 5.5-7.0 x 2.5-3.0 um, Q - 2.2-2.5, basidia 4-sporigera; cheilocystidia 24 -52 x 2-5 um, lageniformia vel filiformia; pileipellis trichoderma ex cellulis coralloideis constans pigmentum nullum; fibulae abundantes. Ad lignum putridum Pseudotsugae menziesi