Full name: Hebeloma deflectens P. Karst. (1879)
Published: Bidrag Kännedom Finlands Natur Folk 32: 475 (1879)
Taxonomic status: This is a Naucoria.
Types: FINLAND: Tammela, Heinemaa (approx. 60.8°N, 24.12°E), Sep. 1879, P.A. Karsten (4001) (Lectotype. herbarium acc. no. H 5015786, HJB13787). Lectotype designated by Beker et al., Hebeloma (Fr.) P. Kumm.: (2016) page 587 (MBT202531).

Original diagnosis: I början blekaktig, sedan sämskfärgad med dragning åt rostbrunt eller okragult, torr utbleknande, hatten slutl. i ytan söndersprucken till fjäll, lukten m. stark, lik den af rättika. Hatten n. köttig, i början klockformigt kullrig, sedan utbredd, med en bred, låg upphöjning eller puckel i midten, oregelbunden, slutl. i kanten inskuren, yngre öfverdragon met ett fint ludd eller puder, torr, 3-10 cm. bred; foten pipig, jemntjock, flerböjd, often skrufvriden, n. finträdigt strimmig, slutl. ljust umbrabrun, 3-9 cm. lång, 2-3 mm., tjock; lamellerna fastväxta, tättsittande, i början bleka, sedan ler- eller sämskfärgade, skiftante mer eller mindre I brunt; sporerna aflångt ovala, 7-9 mmm. långa, 3-6 mmm. Tjocka. Till storlek og utseende lik N. escharoides. Växer flock- eller tufvis.

English translation: Pale in the beginning, later medium brown (leather-coloured) with rusty brown tinge or ochre yellow, pallescent on drying, finally breaking up into small squamules; odour very strong, raphanoid. Pileus somewhat fleshy, in the beginning campanulate-hemispherical then expanding, with a broad, low umbo of papilla at centre, irregular, finally incised at margin; when young covered with a fine tomentum or powder, dry, 3–10 cm broad; stipe hollow, equal, curved, often twisted, finely fibrillose-striate, finally pale umber brown, 3–9 cm long, 2–3 cm broad; lamellae adnate, crowded, pale at first, then leather or pale brown coloured, more or less tending to brown; spores elongate-ovate, 7–9 μm long, 3–6 μm wide. Thick. In habit and size similar to Naucoria escharoides. Growing in groups or caespitose.

Commentary: Two original collections have been studied: No 4000 ‘Fennia, Tavastia australis, Tammela, Mustiala, in pascuo, 23 Aug. 1878, leg. et det. P.A. Karsten’; and No 4001 ‘ Fennia, Tavastia australis, Tammela, Heinämaa, Sep. 1879, leg. et det. P.A. Karsten’, both deposited in H. The latter collection has been split into two, one part labelled ‘zonata’ and the other part labelled ‘non zonata’. Having examined all the material, this species belongs in the genus Naucoria (Fr.) P. Kumm., as already suggested by Vesterholt (1989). We have a good ITS sequence for the collection labelled 4001, ‘non zonata’, and as this is very likely to be (at least a part of) the original material mentioned in the protologue, this was designated as lectotype.