This species was known previously only from Argentina (Singer & Digilio, 1951; Singer 1959). The author identified the species in material from ECUADOR: 36 km from Quito , road to Tandayapa , Prov. Pichincha, at 2400 m elevation on bamboo culm: Dumont EC-2297, Aug 6, 1975 (NY). The Ecuatorian material agrees well with the type (BAFC). The spores are (5.5-) 6-7 (-8) x 4.4-5 × 3.8-4.4 pro, pleurocys- tidia 22- 39 × 7. 7-12 ~m. mucronate, hyaline but sometimes with a refringent central mass, and with hyaline cheilocys- tidia 13-19 × 5-7.7 ~m. fusiform or short mucronate. The fruit body is collybioid, 5-10 mm in diameter.
Note: The BAFC herbarium currently at the Biological Sciences Department of the School of Exact and Natural Sciences, Buenos Aires University, was created in the 1960s from Rolf Singer’s 1960–66 collections and other materials.