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Three new records of Agaricales species from the Colombian Caribbean region are presented: Agrocybe pediades (Fr.) Fayod, Macrocybe titans (H.E. Bigelow & Kimbr.) Pegler, Lodge & Nakasone, and Podaxis pistillaris (L.) Fr. Descriptions, photographs, and illustrations of the macroscopic and microscopic features of each species are presented, as well as a brief discussion of their distribution.

Bulbothrix ventricosa (Hale & Kurok.) Hale Figure 2A Materials examined. COLOMBIA • Magdalena, Santa Marta, locality of Minca, Bella Vista village, Villa Kelly coffee farm; 11°05.67′N, 074°04.87′W; 1550 m a.s.l.; 28 Jun. 2017; K. Ramírez Roncallo leg.; KRR 231; CBUMAG:LIC:403; KRR 245; CBUMAG:LIC:417 • Santa Marta, locality of Minca, Bella Vista village, Villa del Sol coffee farm; 11°05.95′N, 074°04.75′W; 1600 m a.s.l.; 29 Jun. 2017; K. Ramírez Roncallo leg.; KRR 431; CBUMAG:LIC:603; KRR 442; CBUMAG:LIC:614. Identification. Thallus laciniate and corticolous, with laminar to marginal ciliary bulbs. Isidia abundant and concolorous, brown to black lower cortex, and presence of nordistic acid in the medulla (K + yellow → orange) (Benatti 2012). Ecology and distribution. Bulbothrix ventricosa was recorded only in the Central Cordillera in Risaralda department, at between 1500 and 1725 m a.s.l., but its presence is assumed for the rest of the Colombian Andean region (Wolf 1993; Bernal et al. 2020). In the SNSM it was found on bark in coffee crops in sub-Andean forest between 1550-1600 m a.s.l., Published as part of Ramírez-Roncallo, Kevin, Gómez-Ramírez, Hugo & Negritto, María A., 2020, New records of lichenized fungi in Sierra Nevada de Santa Marta, Colombia, pp. 1421-1431 in Check List 16 (6) on page 1423, DOI: 10.15560/16.6.1421, {"references":["Benatti MN (2012) A review of the genus Bulbothrix Hale: the species with medullary norstictic or protocetraric acids. MycoKeys 2: 1 - 28. https: // doi. org / 10.3897 / mycokeys. 2.2522","Wolf JHD (1993) Diversity patterns and biomass of epiphytic bryophytes and lichens along an altitudinal gradient in the Northern Andes. Annals of the Missouri Botanical Garden 80 (4): 928 - 960. https: // doi. org / 10.2307 / 2399938","Bernal R, Gradstein SR, Celis M (Eds) (2020) Catalogo de Plantas y Liquenes de Colombia. v. 1. 1. Universidad Nacional de Colombia. Dataset / checklist. https: // doi. org / 10.15472 / 7 avdhn"]}

Heterodermia pseudospeciosa (Kurok.) W. L. Culb. Figure 3E Materials examined. COLOMBIA • Magdalena, Santa Marta, locality of Minca, Bella Vista village, Villa Kelly coffee farm; 11°05.67′N, 074°04.87′W; 1550 m a.s.l.; 28 Jun. 2017; K. Ramírez Roncallo leg.; KRR 225; CBUMAG:LIC:397. Identification. Lobes with excavate or pseudocyphellate margins, forming non-convergent lateral soralia; presence of nordistic acid in the medulla (K + red) (Díaz-Escandón 2017). Ecology and distribution. Heterodermia pseudospeciosa has been recorded in the departments of Cauca, Cundinamarca, Risaralda, and Valle del Cauca, in lowlands, foothills of the Andean mountains, and Andean forests, from 900 to 2700 m a.s.l., on bark, rocks, and wooden fences (Díaz-Escandón 2017). In SNSM, it was found in coffee crops in the sub-Andean forest, at 1550 m a.s.l., on bark., Published as part of Ramírez-Roncallo, Kevin, Gómez-Ramírez, Hugo & Negritto, María A., 2020, New records of lichenized fungi in Sierra Nevada de Santa Marta, Colombia, pp. 1421-1431 in Check List 16 (6) on page 1427, DOI: 10.15560/16.6.1421, {"references":["Diaz-Escandon D (2017) La tribu Heterodermieae Trevis. en Colombia. Master tesis, Universidad del Valle, Cali, 115 pp."]}