Microscopy

Hyphal system: Dimitic; generative hyphae with difficult-to-discern clamp connections, embedded deep within a thicket of acicular (needle-like) dichohyphae or dichohyphidia; dichohyphae thick-walled, weakly dextrinoid, yellowish in KOH, profusely branched, extending from the substrate to the hymenium and beyond, seemingly constituting the entire subiculum, width (1.9) 1.9–2.8 (3.2) µm (n = 10); I observed a few enormous and thick-walled seta-like dichohyphida with one or more central hyphae running the interior length, a characteristic mentioned briefly by Lentz and McKay (1965). Basidia: Difficult to find within the thicket of dichohyphidia; utriform with four sterigmata. Basidiospores: Narrowly cylindrical, fusoid or pip-shaped (like an apple seed), more accurately geniculately fusoid-ellipsoid; smooth, thin-walled, hyaline, inamyloid, with a prominently pointed (pseudo)septate amyloid tip (deemed a "suprahilar plage" or "plaque") that does not stain with phloxine B; length (8.8) 9.6–11.5 (12.5) µm, width (3.3) 3.6–4.3 (5) µm, x̄ = 10.6 ✕ 3.9 µm, Q (2.2) 2.4-3 (3.3), x̄ = 2.7 (n = 30). Sterile structures: Gloeocystidia present, about 5–7 µm wide, up to 50 µm long.