Sulzbacheromyces tutunendo was formally described as new to science in 2018 by Luis Coca, Robert Lücking, and Bibiana Moncada.

It has a distinctive thick outer layer of fungal threads (hyphae) that forms a "cortex", with air pockets inside the structure.

The photobiont (the algal partner) consists of rounded to ellipsoid chlorococcoid cells grouped together, measuring 5–9 by 9–11 μm.

The most distinctive features are its reproductive structures called basidiomata, which are orange to yellowish-orange, cylindrical to slightly spindle-shaped projections that often branch above their middle section.

Unlike its close relative S. chocoensis, which is found exclusively on soil, S. tutunendo shows more flexibility in its habitat preferences.