Full name: Hebeloma pumiloides A.H. Sm., V.S. Evenson & Mitchel (1983)
Published: The Veiled Species of Hebeloma in the Western United States: 176 (1983)
Taxonomic status: Heterotypic synonym of H. excedens
Types: UNITED STATES: Michigan: Highland State Recreation Area, Oakland County (approx. 42.6364°N, 83.5731°W, alt. approx. 300 m a.s.l.) on mossy soil, 4 Oct. 1977, A.H. Smith, W.W. Patrick (88232) (Holotype. herbarium acc. no. MICH 10796, HJB1000472).

Original diagnosis: Pileus (1.5) 2.5-4 cm latus, obtusus vel convexus, subviscidus, leviter fibrillosus, glabrescens, ad centrum rufobrunneus, ad marginem pallidus. Contextus fragilis, odor mitis, gustus amarus. Lamellae rufocinnamOmeae, confertae, angustae, adnatae. Stipes 3-5 cm longus, 3 -6 mm crassus, fulvus, fibrillosus vel squamulosus, glabrescens. Velum fibrillosum subochraceum. Sporae 7-9 x 4-5 μm, ellipsoideae vel ovoideae, non dextrinoideae, subleves. Cheilocystidia 29-46 (57) x 4 -7 x 4-5 μm, anguste fusoid-ventricosa vel cylindrica.

English translation: Pileus (1.5) 2.5-4 cm broad, obtuse or convex, subviscid, slightly fibrillose, becoming glabrous, red-brown on the disc, pale on the margin. Context fragile, smell mild, taste bitter. Lamellae reddish-cinnamon, crowded, narrow, adnate. Stipe 3-5 cm long, 3-6 mm thick, fulvous, fibrillose or squamulose, becoming glabrous. Veil fibrillose, pale ochraceous. Spores 7-9 x 4-5 μm, ellipsoid or ovoid, indextrinoid, almost smooth. Cheilocystidia 29-46 (57) x 4-7 x 4-5 μm, narrowly fusoid-ventricose or cylindrical.

Commentary: Based on molecular, morphological and habitat analysis this is: = Hebeloma excedens (Peck) Sacc.

Full name: Hebeloma pumiloides var. sylvestre A.H. Sm., V.S. Evenson & Mitchel (1983)
Published: The Veiled Species of Hebeloma in the Western United States: 177 (1983)
Taxonomic status: Heterotypic synonym of H. excedens
Types: UNITED STATES: Michigan: Haven Hill, Highland State Recreation Area, Oakland County (approx. 42.6413°N, 83.5637°W, alt. approx. 340 m a.s.l.), 4 Oct. 1977, A.H. Smith, W.W. Patrick (88230) (Holotype. herbarium acc. no. MICH 10797, HJB1000473).

Original diagnosis: Pileus 1-3 cm latus, campanulatus vel + planus, cinereocanescens dein nudus, brunneogriseus demum rufobrunnescens; odor mitis; gustus amarus. Lamellae latae, confertae, adnatae, sordide cinnamomeae. Stipes 1.5-5 cm longus, 2.5-4 mm crassus, deorsum brunnescens, fibrillosus. Velum copiosum, cinereopallidum, evanescens. Sporae 9-11 x 5-6 μm, subellipsoideae, non dextrinoideae. Cheilocystidia 38-46 x 6-9 x 4-6 μm, obtusa; vel subfilmentosa 30-56 x 4 -6 μm.

English translation: Pileus 1-3 cm broad, campanulate or more or less applanate, greyish-hoary then naked, brown-grey then becoming red-brown; smell mild; taste bitter. Lamellae broad, crowded, adnate, dingy cinnamon. Stipe 1.5-5 cm long, 2.5-4 mm thick, discolouring brown downwards, fibrillose. Veil abundant, pale greyish, vanishing. Spores 9-11 x 5-6 μm, subellipsoid, indextrinoid. Cheilocystidia 38-46 x 6-9 x 4-6 μm, obtuse; or more or less filamentous 30-56 x 4-6 μm.

Commentary: Based on molecular, morphological and habitat analysis this is: = Hebeloma excedens (Peck) Sacc.