Full name: Hebeloma claviceps (Fr.) Quél. (1872)
Published: Mém. Soc. Emul. Montbeliard 2éme 5: 251 (1872)
Taxonomic status: This is a Hebeloma but we have not been able to unambiguously determine the species.
Basionym: Agaricus claviceps Fr. (1863)

Types: Batsch, Elench. Fung. 2: 251 (1789) pl. 199a-e, lectotype (icon) designated by Grilli, Micologia e Vegetazione Mediterranea 24 (2): (2010) ["2009"] page 153

The lectotype is described from Germany.

Homotypic synonyms: Agaricus clavus Batsch (1789); Hebelomatis claviceps (Fr.) Locq. (1979) ["1977"]; Hylophila claviceps (Fr.) Quél. (1886); Inocybe claviceps (Fr.) P. Karst. (1879)

Original diagnosis: (Fries) In silvis frondosis passim. Ab A. firmo P. cui hactenus subjunctus, omnino diversus statura omnium partium minore, stipites deorsum fusco, lamellis pallidis, maxime vero conspicue pileo e convexo expanso discoideo, neutiquam e conico campanulato, laxo A. firmi. Persoonii icon A. firmi ceterum haud bona nec meum longe robustiorum, (A. mitratus Holm.) pileo pallidiore bene refert. (Batsch): Stipite elongato, ochraceo-carneo, floccoso-furfuraceo, pileo conico-pulvinato, farto, carneo-lateritio, subunctuoso, lamellis angustis, stipiti concoloribus, pileo propriis. Fungi proportio singularis, similis illi in A. peltigero CXC. et affinibus. Pileus fere totus ex umbone constans, angusto tantum et obtuso margine, et quidam explanatiore cinctus, conico-obtusus, non deflexus, sed totus fartus, plano horizontali, vel excavato, quo stipite affigitur, laminas adnectens, solum in extimo margine paullo citius decrescens et incurvus. Superficies subcartilaginea, siccior in junioribus, unctuosa in adultis. Color saturatus ochraceo-carneus, in lateritium vergens, maculae sicciores in margine albescunt. Stipes opacus, nitoris expers, ochraceo-carneus, sed albentior, in superficie, prasertim inferne, floccoso-squamosus, fere semper varie flexus, et varia erga pileum proprtione instructus. Laminae angustae oblongae, pone obtusatae, vel sensim decrescentes, inaequaliter formatae, stipiti concolores, triplici ordine digestae. Majores eorum 50. Substantia nivea, in pileo farta, in stipite fibrosa, et in ejus bulbo radicali fuscescens. Legi tria huc depicta specimina in pineto ante sylvulam Forst, die 10 Octobris 1788.

English translation: (Fries) Widely [found] in leafy forests. From A. firmus P., in which it was until now included, it is entirely different, in its size being smaller in all parts, by the stipe dark brown below, by the pale lamellae, by the pileus indeed very much conspicuously expanding from convex o discoid, absolutely not from conical to campanulate, loosely like A. firmus. Persoon’s illustration of A. firmus otherwise is not good at all as this is much more robust, it compares well (A. mitratus Mus. Holm.) with a paler pileus. (Batsch) A fungus with an elongate, ochraceous to flesh-coloured, furfuraceous to floccose stipe, a fleshy, conically pulvinate, somewhat greasy, flesh-coloured to brick red pileus and narrow lamellae which are concolourous with the stipe and only attached to the pileus. The proportion of the fungus is particular and similar to the small-pileate red fleshy fungus 190. and its relatives. The pileus is almost exclusively composed of a raised part {umbo} surrounded by a narrow, obtuse and somewhat lower margin. The pileus is completely robust and fleshy, obtuse to conical and fixed to the stipe with a rectilinear or somewhat concave lower surface to which the lamellae are attached. This thickness only decreases abruptly near its extreme, involute, margin. The surface is somewhat cartilaginous, dry in the younger fungi, greasy in the older ones. The colour is saturated ochraceous to flesh-coloured with a tendency to brick red, the drier spots near the margin tend to whitish. The stipe is opaque and not shining, ochraceous to flesh coloured, but somewhat whitish, covered with floccose scales on the surface, especially in the lower part, almost always variously curved, and has an unequal proportion with respect to the pileus. The lamellae are narrow and oblong, obtuse at the inner end, or gradually tapering; their shapes are unequal, they have the same colour as the stipe and have three different lengths. There are roughly 50 of the larger lamellae. The substance is snow-white, robust and fleshy in the pileus, fibrillose in the stipe and brownish in the stipital bulb which is the root. I found the three examples depicted here on the 10 Oct. 1788 in the pine grove in front of the Forst forest.

Commentary: Judging from the original description and plate of Batsch’s Agaricus clavus, this may be a Hebeloma, where it shares the rooting stipe and the presence of a cortina with the species known as Hebeloma pumilum. However, the interpretation is uncertain and Agaricus clavus may be a member of Hebeloma sect. Hebeloma, as many authors have suggested, or may indeed represent a species from another genus.

Full name: Hebeloma claviceps f. nigrescens Killerm. (1925)
Published: Denkschriften der Bayerischen Botanischen Gesellschaft in Regensburg 16: 97 (1925)
Taxonomic status: Heterotypic synonym of H. velatum
Types: GERMANY: Bavaria, Eisenstein, Bayerischer Wald, Regensberg (approx. 49.12°N, 13.2°E, alt. approx. 700 m a.s.l.), Aug. 1912, S. Killermann (Lectotype. herbarium acc. no. M-0155738, HJB1000216). Lectotype designated by Beker et al., Hebeloma (Fr.) P. Kumm.: (2016) page 581 (MBT202527).

The lectotype is one of apparently two collections mentioned in the protologue and hence satisfies the requirement with regard to original material.

Original diagnosis: Stiel unten schwärzlich; Sporen ähnlich.

English translation: Stipe blackish below; spores similar.

Commentary: A microscopical examination of the lectotype shows that this is: = Hebeloma dunense L. Corb. & R. Heim.

Full name: Agaricus claviceps Fr. (1863)
Published: Monographia Hymenomycetum Sueciae Vol 2 2: 346 (1863)
Taxonomic status: This is a Hebeloma but we have not been able to unambiguously determine the species.
Notes: Replacement name for Agaricus clavus Batsch, Elench. fung., 2: 41 (1789), non Agaricus clavus L., Sp. Pl. 2: 1175 (1753) [= Collybia clavus (L.) Bull.].

Is basionym of: Hebeloma claviceps (Fr.) Quél. (1872); Hebelomatis claviceps (Fr.) Locq. (1979) ["1977"]; Hylophila claviceps (Fr.) Quél. (1886); Inocybe claviceps (Fr.) P. Karst. (1879)

Types: Batsch, Elench. Fung. 2: 346 (1789) pl. 199a-e, lectotype (icon) designated by Grilli, Micologia e Vegetazione Mediterranea 24 (2): (2010) ["2009"] page 153

The lectotype is described from Germany.

Homotypic synonyms: Agaricus clavus Batsch (1789)

Commentary: See Hebeloma claviceps (Fr.) Quél.

Full name: Hebelomatis claviceps (Fr.) Locq. (1979) ["1977"]
Published: Flore Mycologique Vol III - Text. Cortinariales A: 146 (1979) ["1977"]
Taxonomic status: This is a Hebeloma but we have not been able to unambiguously determine the species.
Notes: Nom. inval. (Art. 41.5 - Melbourne).

Basionym: Agaricus claviceps Fr. (1863)

Types: Batsch, Elench. Fung. 2: 146 (1789) pl. 199a-e, lectotype (icon) designated by Grilli, Micologia e Vegetazione Mediterranea 24 (2): (2010) ["2009"] page 153

The lectotype is described from Germany.

Homotypic synonyms: Hylophila claviceps (Fr.) Quél. (1886)

Homotypic synonym of: Hebeloma claviceps (Fr.) Quél. (1872); Agaricus clavus Batsch (1789); Hylophila claviceps (Fr.) Quél. (1886)

Commentary: See Hebeloma claviceps (Fr.) Quél.

Full name: Hylophila claviceps (Fr.) Quél. (1886)
Published: Enchiridion Fungorum in Europa Media et Praesertim in Gallia Vigentium: 99 (1886)
Taxonomic status: This is a Hebeloma but we have not been able to unambiguously determine the species.
Basionym: Agaricus claviceps Fr. (1863)

Types: Batsch, Elench. Fung. 2: 99 (1789) pl. 199a-e, lectotype (icon) designated by Grilli, Micologia e Vegetazione Mediterranea 24 (2): (2010) ["2009"] page 153

The lectotype is described from Germany.

Homotypic synonyms: Hebelomatis claviceps (Fr.) Locq. (1979) ["1977"]

Homotypic synonym of: Hebeloma claviceps (Fr.) Quél. (1872); Agaricus clavus Batsch (1789); Hebelomatis claviceps (Fr.) Locq. (1979) ["1977"]

Commentary: See Hebeloma claviceps (Fr.) Quél.

Full name: Inocybe claviceps (Fr.) P. Karst. (1879)
Published: Bidrag Kännedom Finlands Natur Folk 32: 459 (1879)
Taxonomic status: This is a Hebeloma but we have not been able to unambiguously determine the species.
Basionym: Agaricus claviceps Fr. (1863)

Types: Batsch, Elench. Fung. 2: 459 (1789) pl. 199a-e, lectotype (icon) designated by Grilli, Micologia e Vegetazione Mediterranea 24 (2): (2010) ["2009"] page 153

Homotypic synonym of: Hebeloma claviceps (Fr.) Quél. (1872)

Commentary: See Hebeloma claviceps (Fr.) Quél.