Favoritos de millennialmyces

Spore deposit buff/wheat. No distinct odor. Basidia 10 - 12.3 µm wide and up to 100 µm long. Spores (14) 14.3 - 15.8 (15.9) x (6.8) 7.2 - 8.3 (8.5) µm, Q = 1.8 - 2 (2.1), N = 20, Me = 15 x 7.7 µm, Qe = 2. Growing under conifers.
Initially I was tempted to call this Turbinellus floccosus due to the orange coloring, but ruled it out after measuring the basidia size. Per MycoMatch, basidia of T. kauffmanii are reported to be up to 115 µm long whereas those of T. floccosus are up to 60 µm long.
https://www.inaturalist.org/observations/244574395 was growing nearby.

As in Observation 177471+Observation 172217, despite these nodules’ occurrence on what can safely be assumed to be many stalks of the same species of bamboo (Chusquea sp.?), they are so varied and so lacking in “transitionality” from younger to older as to suggest that there is, in fact, more than one fungus at work here. A more scrutinous analysis, either at the collection’s current home of Buenos Aires, or in San Francisco, will shed much needed light.

Habitat: Atlantic Paranaense forest

Substrate: on thin, living shoots of bamboo, typically only those a meter or more above the ground

Collector: D. Newman & F. Mafalda Freire

Collection #: CIAR020

Collected during the 2015 “Curso de Identificación de Macrohongos Degradadores de Madera,” lead by Dr. Gerardo Robledo, Dr. Elisandro Ricardo Drechsler-Santos, Dr. Orlando Fabián Popoff Montañez and Nicolás Niveiro.

Small fungi growing on decaying laterite block (stone cut for temple walls). In full shade for. Caps +/- 20mm wide and tallest specimens 50-75mm high. No discernable smell. Stem discolors to a dark grey/brown color when bruised from picking.

Ascocarpo anaranjado de alrededor de 1,5 cm. Borde aserrado y consistencia correosa. Estípite reducido o ausente. Contexto de color amarillo crema. Crecimiento gregario sobre madera en descomposición (saxícola).