Scientific name:Hebeloma marginatulum (J. Favre) Bruchet 1970 Synonyms:Species Fungorum 01.06.2016: Hebeloma marginatulum var. fallax A.H. Sm., V.S. Evenson & Mitchel 1983 Hebeloma marginatulum var. marginatulum (J. Favre) Bruchet 1970 Hebeloma marginatulum var. proximum A.H. Sm., V.S. Evenson & Mitchel 1983 Hebeloma versipelle var. marginatulum J. Favre 1955 Habit of Growth:
Mushroom is not protected Trees: Salix (Willow)d0d0
, Salix herbacea (Dwarf willow)
, Salix polaris (Polar willow)
Cap: 1-2,5 cm across, first hemispherical, later campanulate to plano convex, usually umbonate, if wet smooth, silky, nearly unicolored cinnamon to yellow brown, sometimes viscid, margin is incurved for a long time, even, sometimes hung with white velar remnants, joined to the stem by a filamentous cortina if very young.
Hymenophore: lamellae are first cream beige, later increasing dark brown, broad, narrow to almost broadly attached, edges are smooth to finely whitish ciliate.
Spore print: brown
Spore: elliptic to oval, weak verrucose, 8,7-12,2 x 5,2-7,3
Stem: 2-3 x 0,3-0,6 cm, cylindric, young solid, old hollow, longitudinally white fibrillose on a gray brown background if young, later glabrescent and gray brown, apex is white pruinose to finely floccose.
Flesh: whitish to light brown, thin, odor is raphanoid, taste is bitter and litle astringent.
Habitat: solitary to gregarious in alpine dwarf shrubs, among vegetation of springs, on calcareous and siliceous soils, under willow, grows in summer.