Full name: Hebeloma hetieri Boud. (1917)
Published: Bulletin trimestriel de la Société Mycologique de France 33: 8 (1917)
Taxonomic status: Heterotypic synonym of H. odoratissimum
Types: Boudier, Bulletin trimestriel de la Société Mycologique de France 33: 8 (1917) pl. ll, fig. 1, lectotype (icon) designated by Beker et al., Hebeloma (Fr.) P. Kumm.: (2016) page 602 (MBT202533)

No holotype could be located; it is presumed lost. The icon, selected as lectotype, is mentioned within the protologue and hence suitable as a lectotype.

Original diagnosis: Majus, 6-8 cm. altum, fuscum. Pileus convexus, squamulis minutissimis crebre granulosus, expansus saepe transversim rimosus. Pediculus ad basim paululum attenuatus fusco-fibrillosus, ad apicem pallidiorem furfuraceus, solidus sed saepe parte supera cavus. Lamellae latae, adnatae, cinnamomeae. Basidia clavata, 2-4 spora, 40-45 μ long, 8-10 μ crassa. Sporae majores fulvaee, ovato-fusiformes, utrinque subapiculatae, minutissime verruculosae, intus saepius biguttulatae, 20-21 μ long., 8-10 μ crassae. Caro pallida sed in stipite precipue ad basim paululum fusco-rubescens. Odor gravis exacte Heb. sacchariolentis simulans sed gravior. Arbois primo legit Octobro amicus Hetier cui dicavi, dein prope Lugdunum a Dr. Riel repertum.

English translation: Large, 6–8 cm high, dark brown. Pileus convex, with minute squamules densely granulose, expanding often rimose. Stipe slightly attenuated towards base, dark brown, fibrillose, at apex paler furfuraceous, solid but in upper part often hollow. Lamellae broad, adnate, cinnamon coloured. Basidia clavate, 2–4 spored, 40–45 m long, 8–10 μm wide. Spores in mass reddish brown, ovate-fusiform, subapiculate at both ends, minutely warted, biguttulate, 20–21 μm long, 8–10 μm wide. Context pallid, but in stipe, especially at base, weakly turning reddish brown. Odour strong (heavy), exactly like that of Hebeloma sacchariolens but stronger. First collected in Arbois in October by my friend Hetier to whom this species is dedicated, then reported from Lyon by Dr. Riel.

Commentary: Unfortunately, we have been unable to locate original material. However, based on the protologue, where we suspect the spore size has been exaggerated, there is no doubt that this is: = Hebeloma odoratissimum (Britzelm.) Sacc.