Camille Truong

Usnea galapagona is a species of beard lichen in the family Parmeliaceae. It is endemic to the Galápagos Islands. The lichen is easily recognized by its special structure. It has a tough, glass-like outer layer, a thick central core, and a very faint, almost invisible inner layer. This lichen stands upright and has a reddish colour near its base. Its branches split unevenly and are generally few in number, without any small, hair-like structures.

Usnea subdasaea is a species of beard lichen in the family Parmeliaceae. It has an erect, shrubby growth form, typically reaching about 7 cm (2.8 in) long, and often has a faint reddish tinge due to an orange pigment layer beneath the surface. The species bears minute powdery patches and abundant fine outgrowths on its branches. It occurs in the Galápagos Islands and in the tropical Andes from Bolivia to Venezuela, with an outlying record from Florida.

Usnea grandisora is a species of beard lichen in the family Parmeliaceae. It is known from the Galápagos Islands and has also been reported from Venezuela. It has an erect, shrubby growth form reaching about 8 cm (3 in) long, with an orange pigment layer beneath the surface and large powdery patches used for reproduction. The species grows on bark and wood in open habitats, from farmland edges to humid-zone woodlands.

Usnea crocata is a species of beard lichen in the family Parmeliaceae. It has an erect to somewhat hanging, shrubby growth form, reaching up to 20 cm (8 in) long, and bears minute powdery patches used for reproduction. The species is distinguished by an orange pigment layer beneath the outer surface that can give the whole thallus an orange tinge. It is endemic to the tropical Andes, where it grows on trees and shrubs in mountainous cloud forests and open pastures.

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Usnea subcomplecta is a species of fruticose lichen in the family Parmeliaceae. It is found in the Galápagos Islands. It is characterized by its flaccid branches, blackened trunk, and pruinose cortex surface.

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Usnea mayrhoferi is a species of fruticose lichen in the family Parmeliaceae. It is found in the Galápagos Islands.

Usnea leana is a species of fruticose lichen in the family Parmeliaceae. Found in the Galápagos Islands, it characterized by its pendulous thallus, branches covered with point-like pseudocyphellae, and the presence of galbinic acid. This lichen is currently known to be endemic to the Galápagos, with only two known localities representing its distribution.

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Amanita nouhrae is a rare mushroom in the Amanita genus.

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