Leidy Yasmín Vargas

Dictyonema giganteum is a species of lichen-forming fungus in the family Hygrophoraceae. It is a basidiolichen—its fungal partner belongs to the Basidiomycota rather than the more typical Ascomycota. The species was discovered and described in 2014 from specimens collected in the cloud forests of Colombia's eastern Andes. As its name suggests, it forms unusually large, shelf-like lobes that can reach up to 12 cm (4.7 in) across. The lichen is covered with dense white hairs that give it a frosted appearance and is known only from a small area of sub-montane cloud forest in Casanare Department,

Cora undulata is a rare species of basidiolichen in the family Hygrophoraceae. It is found in Colombia. Its dark olive-green thalli are foliose, measuring up to 9 cm and comprising 5 to 15 semicircular lobes. This lichen gets its name from the wavy, rippled surface of its lobes and is characterised by whitish to pale orange-brown fertile patches on its underside that form rings mirroring the ridges above. Described as new to science in 2014 from a single location in Casanare Department at 1400 metres elevation, it is currently known only from its type locality where it grows on rocks among

Cora setosa is a rare species of basidiolichen in the family Hygrophoraceae. It is found in Colombia. Its thallus is emerald-green when fresh, measuring up to 8 cm across and comprising four or five circular lobes arranged in layers above each other. The lichen is distinguished by its broad concentric ridges on the upper surface and distinctive white bristles along the edges of its lobes, with pale yellow reproductive patches forming concentric lines on the underside.

Cora fuscodavidiana is a species of basidiolichen in the family Hygrophoraceae. Found in Colombia, it was formally described as a new species in 2016 by Robert Lücking, Bibiana Moncada, and Leidy Yasmín Vargas-Mendoza. The specific epithet fuscodavidiana combines the Latin word fuscus ("brown") with the first name of mycologist David Leslie Hawksworth. The lichen is only known to occur at the type locality in the Sumapaz Páramo, where it grows on rocks and in shaded bryophyte and lichen mats.

Cora fimbriata is a rare species of basidiolichen in the family Hygrophoraceae. It is found in Colombia. This small lichen forms leaf-like rosettes up to 3 cm across that grow on tree bark, distinguished by distinctive white hair-like fringes along the edges of its lobes that give the species its name. Described as new to science in 2014 from a single location in Casanare Department at 1450 metres elevation, it is currently known only from its type locality where it grows among mosses in partially shaded microhabitats.

Cora elephas, the elephant heart lichen, is a species of basidiolichen in the family Hygrophoraceae. It was formally described as a new species in 2016 by Robert Lücking, Bibiana Moncada, and Leidy Yasmín Vargas-Mendoza. The specific epithet elephas refers the "grey colour and elephant skin-like consistency" of the lichen. It occurs at elevations greater than 3,000 m (9,800 ft) in the northern Andes of Colombia and Ecuador, where it grows mostly on rocks, but sometimes with mosses and other lichens. Cora elephas is one of the largest species in genus Cora.

Cora davidia is a species of basidiolichen in the family Hygrophoraceae. It was formally described as a new species in 2016 by Bibiana Moncada, Leidy Vargas-Mendoza, and Robert Lücking. The specific epithet davidia honours mycologist David Leslie Hawksworth, "in recognition of his nomenclatural work on Dictyonema." The lichen occurs above elevations of 3,000 m (9,800 ft) in the northern Andes of Colombia and Ecuador, where it grows as an epiphyte on the twigs of small trees and shrubs in somewhat shaded locales.

Cora casanarensis is a rare species of basidiolichen in the family Hygrophoraceae. It is found in Colombia. This distinctive lichen forms neat, leaf-like rosettes up to 8 cm across that grow directly on bare rock, with five to eight broad lobes that change from dark grey-brown when wet to pale grey-white when dry. Described as new to science in 2014 from a single location in Casanare Department at 1400 metres elevation, it is known only from its type locality where it grows alongside mosses and other lichen species.