Hebeloma strophosum - A non-current Hebeloma species

According to our data Hebeloma strophosum is not the name of a current valid species of Hebeloma. Our database has records for the following similar names

Full name: Hebeloma strophosum (Fr.) Sacc. (1887)
Published: Syll. Fung. 5: 808 (1887)
Taxonomic status: Heterotypic synonym of H. mesophaeum
Basionym: Agaricus strophosus Fr. (1838)

Types: Not designated. Described from Sweden, Småland.

Homotypic synonyms: Hebeloma mesophaeum var. strophosum (Fr.) Quadr. (1985) ["1984"]; Roumeguerites strophosus (Fr.) P. Karst. (1879); Hylophila versipellis var. strophosa (Fr.) Quél. (1886)

Original diagnosis: A. strophosus pileo carnoso convexo-plano disco subumbonato, obscuriori, versus marginem laevem superficiali sericeo, stipite cavo curto aequali sericeo ipso apice floccoso-annulato, lamellis ex adnexo liberis confertis ventricosis e pallide aquoso cinnamomeis. In Smolandiae pinetis locis graminosis. A punctato maxime affinis (pileus primo viscidus crustallinus, margine subalutaceo, etiam disco guttati legitur). sed stipes (1-2 unc l. sordide pallidus deorsum intusque fuscescit) apice annulatus. Lamellae subliberae, primo carneae.

English translation: Agaricus strophosus, with a fleshy pileus, with indistinctly somewhat umbonate disc, towards the smooth margin somewhat ash-coloured, with a hollow, short, equal, ash-coloured stipe, with a fluffy annulus at apex, with the crowded, swollen lamellae adnexed then free, from pale to watery reddish brownish. In pine forests with grassy places in Småland. Very much related to A. punctatus (pileus at first viscid, bread-crust coloured, with a more or less pale brown margin, however, it has been collected also with a spotted disk), but the stipe (2.5–5 cm long, dirty pale, downwards and inside is dark) at the apex annular. The lamellae are nearly free, at first flesh-coloured.

Commentary: Based on the protologue where this species is described from Sweden with a veil, in pine forests, it appears highly likely that this is: = Hebeloma mesophaeum (Pers.) Quél.

Full name: Hebeloma strophosum var. occidentale A.H. Sm., V.S. Evenson & Mitchel (1983)
Published: The Veiled Species of Hebeloma in the Western United States: 63 (1983)
Taxonomic status: Heterotypic synonym of H. alpinicola
Types: UNITED STATES: Idaho: Payette Lake, Payette National Forest, Valley County (approx. 44.9117°N, 116.125°W, alt. approx. 1530 m a.s.l.) on soil in woodland roadside verge under Picea engelmannii, 25 Jun. 1954, A.H. Smith (44190) (Holotype. herbarium acc. no. MICH 5563, HJB1000479).

Original diagnosis: Pileus 1.5-3 cm latus, late umbonatus, subviscidus, valde fibrillosus, tarde subglabrescens, pallide argillaceus; odor et gustus raphaninus. Velum pallidum demum pallide argillaceum. Lamellae confertae, latae, adnatae, pallidae demum cinnamomeae. Stipes 3-5 cm longus, 3-6.5 mm crassus, deorsum brunnescens, multizonatus vel subannulatus. Sporae 8.5-10.5 x 5-5.5 μm, Cheilocystidia 28-53 (65) x 4-10 μm.

English translation: Pileus 1.5-3 cm broad, broadly umbonate, subviscid, strongly fibrillose, becoming almost glabrous in age, pale argillaceous ; smell and taste raphanoid. Veil pale then pale argillaceous. Lamellae crowded, broad, adnate, pale then cinnamon. Stipe 3-5 cm long, 3-6.5 mm thick, discolouring brown downwards, multi-zonate or subannulate. Spores 8.5-10.5 x 5-5.5 μm, cheilocystidia 28-53 (65) x 4-10 μm.

Commentary: Based on molecular, morphological and habitat data this is: = Hebeloma alpinicola A.H. Sm., V.S. Evenson & Mitchel