Calocybe cyanea Singer ex Redhead & Singer

de la Fuente, Javier Isaac, García-Jiménez, Jesús, López, Caribell Yuridia, Oros-Ortega, Iván, Vela-Hernández, Reyna Yazuly, Guevara-Guerrero, Gonzalo, Garza Ocañas, Fortunato, Chay Casanova, Jesús Antonio, Ibarra Garibay, León Esteban & Bandala, Victor Manuel, 2020, An annotated checklist of the macrofungi (Ascomycota, Basidiomycota, and Glomeromycota) from Quintana Roo, Mexico, Check List 16 (3), pp. 627-648 : 644

Calocybe cyanea Singer ex Redhead & Singer

Material studied. MEXICO - Quintana Roo • J.I. de la Fuente and Yuridia López 72 ( ITCV); Chetumal; 18°31′N, 088°18′’ W; alt. 8 m; 05 Oct. 2011 .

Habit and habitat. Scattered on humus in secondary vegetation.

Identification. This species can be identified by the purple pileus and the free yellowish lamellae, the greyish stipe, microscopically shows globose spores 3–5 × 2–4 µm, hyaline in KOH without cystidia. Our material agrees with the descriptions provided by Guevara- Guerrero et al. (1985) and Baroni et al. (1999), but our material has more intensely yellow lamellae. Calocybe cyanocephala (Pat.) Pegler is a similar species but with lilac lamellae. Calocybe cyanella Singer ex Redhead & Singer also has a purple pileus but its lamellae are white (Baroni et al. 1999).