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Description type:Original description 
Description:Pileus brownish orange (7D8 Burnt Sienna) when young with a darker reddish brown disc (8E-F8 Persian Red), becoming deep reddish brick color or deep orange red (8D-E7-8 Paprika Red, Venetian Red, Fox, Persian Red) with expansion and showing a bright yellow ground color around margin as the fibrils separate from one another, hairs and agglutinated fibrils brownish on tips and reddish below at first, eventually the hairs all reddish, becoming duller brownish with age, 5-15 mm broad, conical or broadly conical-convex at first, becoming broadly convex, occasionally with a slightly depressed disc, densely erect hispid fibrillose scaly overall at first, becoming densely appressed fibrillose overall or fibrillose squamulose appressed, slightly sulcate or striate around margin, fibrils staining slowly fuscous when bruised. Context white at first but quickly turning dark fuscous quickly when exposed, otherwise dark grayish brown or dark fuscous watery with age when cut open, 0.5 mm thick. Lamellae reddish blond or brownish orange at first (5C-D3 brownish orange, Nougat), soon grayish brown (6D3 Café-au-lait) or dark grayisy brown (5-6E4 Hair Brown), adnate or arcuate with short decurrent tooth, subdistant (L= 12-14-18, l = 1-2), edges densely white fimbriate or granulate, staining black on edges where bruised, broad (2-3 mm). Stipe pale sordid lemon yellow at first (4A3-4-5 Pale Yellow, Pastel Yellow, Butter Yellow) for ground color, especially over the upper ½-3/4, white over lower 1/3, with orange-yellow dense pubescent erect hairs over upper ½-3/4, soon becoming dull reddish ochre (5C6-7 Pompeian Yellow, Yellow Ochre) over apex to near base, but base remaining almost white, entire stipe ± covered at first with deep bright yellow or reddish brick colored erect pubescence, these fibrils becoming darker reddish brick colored with age then these fibrils and stipe surface staining black from handling or injury, stipe base with pale grayish long strigose covering or matted coating, 1-2 mm broad at apex, 15-60 mm long, equal, terete, densely erect short fibrillose or long hispid tangled fibrils overall, whitish or sordid white and solid at first inside, becoming hollow. Odor and Taste none or not distinctive. Entire fruit body turning completely dark brown or black when dried.

Basidiospores 13-19.4 x 8.8-13 µm (n/3 = 45, meanL = 16.24 ± 1.16, meanW = 10.68 ± 0.80, Q = 1.29-1.85, meanQ = 1.53 ± 0.11), heterodiametric, 7-9 (-10) angled from depressed facets in profile and face views, 5-6 rounded angular in polar view, walls pale brown or yellow brown, evenly cyanophilic. Basidia 30-40 x 14-18 (-20) µm, broadly clavate, 4-sterigmate, lacking cyanophilic bodies, a large percentage filled with dark brown coagulated pigment. Cheilocystidia mostly globose or broadly clavate or sphaeropedunculate, some fusiform or bullet-shaped, 20-42 x 14-24 µm, pale brown from intraparietal pigments in ± thickened walls, produced from cylindrical or slightly inflated hyphae with 2-3 septate segements immediately below the cystidium. Pleurocystidia absent. Lamella trama dark brown or brown, parallel, cylindrical or inflated, heavily encrusted hyphae, 3.2-16 µm in diam, with a distinctive subhymenium of pseudoparenchyma, cells 8-15 µm in diam. Pileipellis a dark brown layer of repent hyphae with transitions to a trichodermium in clustered patches, or more uniformly trichodermial over disc, formed by chains of inflated fusoid or sausage-shaped disarticulating cells, dark brown pigments intraparietal and also finely encrusting, terminal cells 52-180 x 12-30 µm. Pileus context dark yellow brown, interwoven or cylindric or inflated, heavily encrusted hyphae, 2.4-12 µm. Stipitipellis over apex a dark brown or golden brown layer or repent, cylindrical, heavily encrusted hyphae, 4-10 µm in diam, producing clusters of ± erect, septate, inflated, filamentous caulocystidia, terminal cells globose, broadly clavate, fusiform, bullet-shaped or broadly ventricose, 22-66 x 10-28 µm, with intraparietal and finely encrusting brown pigments. Clamp connections absent.

Habit, Habitat, Fruiting period: solitary or scattered or gregarious on wet leaves and decaying leaf litter in moist crevices around rocks in seepage area under ferns and mixed tropical hardwood trees of mango, guava, orange in a dry creek bed/watershed approximately ½ way up the mogote on the right side of the trail. January

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