Full name: Agaricus latericolor Mont. [as "A. (Hebeloma) latericolor"] (1856)
Published: Sylloge generum specierumque cryptogamarum, quas in. variis operibus descriptas iconibusque illustratas, nunc ad. diagnosim reductas, nonnullasque novas interjectas: 118 (1856)
Taxonomic status: This is a Hypholoma.
Is basionym of: Hebeloma latericolor (Mont.) Sacc. (1887)

Types: UNITED STATES: Ohio: Columbus (approx. 39.9612°N, 82.9988°W, alt. approx. 230 m a.s.l.), 1846, J. Robinson (319), det: W.S. Sullivant (Holotype. herbarium acc. no. no reference number, HJB1000545; Isotype. herbarium acc. no. WTU-F-39537, HJB1000580).

Commentary: See Hebeloma latericolor (Mont.) Sacc.

Full name: Hebeloma latericolor (Mont.) Sacc. (1887)
Published: Syll. Fung. 5: 803 (1887)
Taxonomic status: This is a Hypholoma.
Basionym: Agaricus latericolor Mont. [as "A. (Hebeloma) latericolor"] (1856)

Types: UNITED STATES: Ohio: Columbus (approx. 39.9612°N, 82.9988°W, alt. approx. 230 m a.s.l.), 1846, J. Robinson (319), det: W.S. Sullivant (Holotype. herbarium acc. no. no reference number, HJB1000545; Isotype. herbarium acc. no. WTU-F-39537, HJB1000580).

Original diagnosis: Pileo carnoso convexo; margine primitus involuto, glabro laevi rubricoso; stipite cylindrico e fibroso farcto demum cavo basi incrassato; cortina contexta fugaci; lamellis latis tridymis emarginato-adfixis subdecurrentibus subsecedentibus e griseo lurido-cinnamomeis acie albis; sporis pallide ochraceis ovoideo-oblongis.

English translation: Pileus fleshy convex; margin at first involute, glabrous, smooth reddish-brown; stipe cylindrical fibrous to stuffed then hollow enlarged at base; cortina intertwined vanishing; lamellae broad tridynamous (threesome) emarginate-adnate subdecurrent slightly seceding grey to dingy cinnamon edge white; spores pale ochraceous ovoid-oblong.

Commentary: Murrill (1924) concluded his study with: “The types at Paris are well preserved and resemble Hypholoma perplexum more than they do any species of Hebeloma.” Our morphological study plus our study of the protologue and icon confirm this to be a species of Hypholoma, although we hesitate to confirm any particular species. Hesler in his unpublished manuscript on the Hebeloma of North America, commented that this: “… is probably the same as Naematoloma sublateritium [Hypholoma lateritium].” The latin diagnosis utilises the term Tridynamous (threesome) meaning In groups of three. THis should probably be interpreted as that between two entire lamellae there are three lamellulae the one in the middle longer than the two on the sides. We diid not attempt to generate DNA sequence data.