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According to our data Hebeloma domardianum is not the name of a current valid species of Hebeloma. Our database has records for the following similar names
Full name: Hebeloma domardianum (Maire) Beker, U. Eberh. & Vesterh. (2005)
Published: Fungi N. Eur. 3. 3: 102 (2005)
Taxonomic status: Heterotypic synonym of H. album
Basionym: Hebelomina domardiana Maire (1935)

Types: ALGERIA: Foret de L'Alma (36.7167°N, 3.4°E, alt. approx. 75 m a.s.l.) under Quercus sp., 15 Dec. 1933, R. Maire (11028) (Holotype. held at herbarium MPU, HJB1000106).

Original diagnosis: Carpophora solitaria l. gregaria, vix nevix hygrophana: caro alba, leviter amara, odorem rapaceum laevum, interdum obsoletum, spirans. Sporae in cumulo tenui albae; in cumulo crasso non visae. Stipes teres subaequalis, plus minusve flexuosus, 3-4 cm longus, 5-6 mm crassus, cum pileo confluens, fibroso-carnosus, solidus sed mox intus plus minusve spongiosus, cute fibrilloso-striata, sericea, adnata, sicca glabra l. interdum leviter floccoso-squamulosa, sub lamellis valde pruinosa, undique alba, vestitus, cum pileo vestigiis veli admodum carens. Pileus convexus, demum applanatus, obsolete umbonatus, 2.5-4 cm diam., praeter discum crassiusculum tenuis, carnosus, subfragilis; cutis leviter viscosa, usque ad discum plus minusve secernibilis, glabra, alba, in disco rufescens; margo incurvus, pruinosus, albus. Lamellae confertae, cum pileo confluentes, ventricosae, utrinque plus minusve rotundatae, adnatae leviter emarginatae, latiusculae (3 mm), tenues, albae; acies plus minusve denticulata pruinosa; intervenatio nulla; lamellulae plus minusve adtenuatae, l. interdum subrotundatae. Lamellarum acies pilis longis filiformibus, flexuosis, apice subclavatis, base interdum inflatis, permutatis, confertis, 32-50 x 5,5-7 μm, membrana tenui hyalina, interdum apice dilute mellea et leniter incrassata praeditis, heteromorpha. Mediostratum versus basim lamellalarum valde intertextum, versus aciem subregulare ex hyphis elongatis, subcylindraceis, fibuligeris, 7-10 μm diam., nonnulis inflatis usque ad 18 μm diam. constans. Subhymenium ramosum, subcellulosum, crassiusculum (hymenium c aequans); hymenopodium haud conspicuum. Cystidia nulla. Basidia clavata, 4-spora, 32-35 x 8-9 μm. Sporae juvenis membrana chloralii iodati ope purpureo-violascens, adulte immutabilis. Sporae hyalinae, amygdaliformes, episporio levissimae incrassato rigido laevi tunicatae, apice conspicue papillatae binucleatae, 11-5 x 8 μm. Pilei cutis ex hyphis gelificatis gracilibus (2-3 μm diam.) intertextis, fibruligeris, subcylindraceis, elongatis, stratum viscosum efformantibus, stratum internum hypharum haud gelificatorum, intertextarum, 6-10 μm diam., elantibus, constans. Stipitis cutis ex hyphis parallelis gracilibus (3-5 μm diam.), fibuligeris, cylindraceis, laevibus, hyalinis, constans, versus apicem stipitis pilis longe claviformibus, usque ad 7-8 μm diam., caespitosus, praedita. Hab. In quercetis suberis Mauretaniae, autumno exeunte.

English translation: Basidiomes solitary or in groups, hardly hygrophanous, context white, slightly bitter, with slight raphanoid odour, sometimes stronger when old. Spore print white in thin layer, not seen in thick layer. Stipe cylindrical, subequal, more or less flexuous, 3–4 cm long, 5–6 mm wide, confluent with pileus, fibrous-fleshy, solid but soon spongy in inner part, with fibrillose-striate, shiny, adnate, dry, glabrous to sometimes slightly floccose-squamulose surface, between lamellae strongly pruinose, white all over, like the pileus lacking veil. Pileus convex then applanate, finally umbonate, 2.5–4 cm broad, thin, apart from thickish centre, fleshy, subfragile; surface slightly viscous, peeling to almost the centre, glabrous, white, becoming reddish at centre; margin incurved, pruinose, white. Lamellae crowded, confluent with pileus, ventricose, rounded to both sides, adnate, slightly emarginate, moderately wide (3 mm), thin, white; with more or less denticulate, pruinose edge; not interveined; lamellulae more or less attached, sometimes rounded. Lamella edge with long, filiform, flexuous hairs with subclavate apex and sometimes inflated basal part, variable, dense, 32–50 × 5.5–7 μm, thin-walled, sometimes with slightly thickened, yellowish apex, heteromorphous. Mediostratum towards base of lamella strongly interwoven, towards edge subregular, made up of elongate, subcylindrical, clamped hyphae, 7–10 μm diam., sometimes inflated, up to 18 μm diam. Subhymenium ramose, subcellular, very thick, about equal to hymenium; hymenopodium inconspicuous. Cystidia absent. Basidia clavate, fourspored, 32–35 × 8–9 μm. Spores when young turning purple-violaceous in chloral hydrate with iodine [Melzer’s reagent]; when mature not changing. Spores hyaline, amygdaloid, with slightly thickened, smooth, rigid epispore, with conspicuous apical papilla, binucleate, 11–15 × 8 μm. Pileipellis a cutis of slender, gelatinized hyphae, 2–3 μm wide, intermixed, clamped, subcylindrical, elongate, making a viscid layer; internal hyphal layer not gelatinized, made up of interwoven hyphae, 6–10 μm diam. Stipitipellis a cutis of parallel, slender, 3–5 μm wide, clamped, cylindrical, smooth, hyaline hyphae, towards apex of stipe with clustered, long, clavate, up to 7–8 μm wide hairs. Growing in oak woodlands (Quercus suber) in Mauretania, in autumn.

Commentary: Original material as well as Maire’s notes and watercolour drawings (fig. 1) have been recovered. While we have been unable to amplify DNA from the type, we have studied the material morphologically and are confident that this collection is conspecific with Hebeloma fragilipes (Beker et al.2016). Although the spores are typical ‘Hebelomina’ spores, i.e. smooth and of inflated appearance, they have the correct length for Hebeloma fragilipes, and the cheilocystidia exhibit the typical median thickening of this species. The name Hebelomina domardiana was published earlier than the name Hebeloma fragilipes, but having hyaline spores it is hardly typical. As a result, we have made a proposal (Beker et al. 2015) to conserve the name Hebeloma fragilipes against the name Hebeloma domardianum. Hebeloma fragilipes has recently been recommended for conservation by the Nomenclatural Committee (May 2017). Beker et al. (2016), anticipating this decision, list Hebeloma domardianum as a synonym of Hebeloma fragilipes. However, since that time we have uncovered an even older name for this taxon which is: = Hebeloma album Peck.

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