Palicella is a genus of crustose lichens in the family Lecanoraceae. It contains six species.
Astrothelium stromatofluorescens is a species of corticolous (bark-dwelling) lichen in the family Trypetheliaceae. It is only known to occur in a few locations in Brazil and Bolivia.
Astrothelium bullatum is a rare species of corticolous (bark-dwelling) lichen in the family Trypetheliaceae. Found in Bolivia, it was formally described as a new species in 2016 by lichenologists Adam Flakus and André Aptroot. The type specimen was collected in the Cotapata National Park and Integrated Management Natural Area at an altitude of 1,700 m (5,600 ft); there, in a mountainous Yungas cloud forest, it was found growing on bark. It is only known to occur at the type locality. The lichen has a strongly bullate thallus, and it is this feature to which the species epithet bullatum refers.
Astrothelium elixii is a rare species of corticolous (bark-dwelling) lichen in the family Trypetheliaceae. It is found in the Beni Biological Station Biosphere Reserve in Bolivia.
Astrothelium nigrocacuminum is a species of corticolous (bark-dwelling) lichen in the family Trypetheliaceae. Found in Bolivia, it was formally described as a new species in 2016 by lichenologists Adam Flakus, Martin Kukwa, and André Aptroot. The type specimen was collected between Apolo and Mapiri villages at an altitude of 1,120 m (3,670 ft); there, in a sub-Andean Amazon forest, it was found growing on bark. It is only known to occur in the type locality. The species epithet alludes to the blackened tops of the ascomata, which protrude from the thallus. Astrothelium megochroleucum is most similar in appearance, but, unlike A. nigrocacuminum, that species has apical ostioles and stroma that fluoresce when lit with a long-wavelength UV light.
Astrothelium pallidoflavum is a species of corticolous (bark-dwelling) lichen in the family Trypetheliaceae. Found in Bolivia, it was formally described as a new species in 2016 by lichenologists Adam Flakus and André Aptroot. The type specimen was collected from Noel Kempff Mercado National Park at an altitude of 220 m (720 ft); there, in a Beni savanna with trees, the lichen was found growing on bark. It is only known to occur at the type locality. The species epithet refers to the characteristic pale yellow colour of the pseudostromata. Astrothelium pallidoflavum is similar to A. cinnamomeum, but has larger ascospores than that species.
Astrothelium pyrenuliforme is a species of corticolous (bark-dwelling) lichen in the family Trypetheliaceae. Found in Bolivia, it was formally described as a new species in 2016 by lichenologists Adam Flakus and André Aptroot. The type specimen was collected by the first author from Kaa-Iya del Gran Chaco National Park and Integrated Management Natural Area at an altitude of 340 m (1,120 ft), where it was found growing on bark in a Chiquitano dry forest. It is only known to occur at the type locality. The species epithet pyrenuliforme refers to its resemblance to genus Pyrenula.
Astrothelium variabile is a species of corticolous (bark-dwelling) lichen in the family Trypetheliaceae. Found in Bolivia, it was formally described as a new species in 2016 by lichenologists Adam Flakus and André Aptroot. The type specimen was collected near the biological station in the Beni Biological Station Biosphere Reserve at an altitude of 175 m (574 ft); there, in a lowland Amazon forest, it was found growing on bark in Beni savanna. It is only known to occur in this type of habitat in Bolivia. The species epithet variabile alludes to the variable amounts of lichexanthone in different regions of the thallus. This is a lichen product that causes parts of the lichen to fluoresce when lit with a long-wavelength UV light. Astrothelium ochroleucoides is somewhat similar in external appearance, but it has smaller ascospores than A. variabile.
Astrothelium carrascoense is a species of corticolous (bark-dwelling) lichen in the family Trypetheliaceae. Found in Bolivia, it was formally described as a new species in 2016 by lichenologists Adam Flakus, Martin Kukwa, and André Aptroot. The type specimen was collected by the first author near Sehuencas in Carrasco National Park at an altitude of 2,250 m (7,380 ft); there it was found growing on bark along a river in a Yungas cloud forest. Its species epithet refers to the type locality, the only place it is known to occur. The lichen has large, singly occurring ascomata that are completely covered by the green thallus. Its ascospores are narrowly ellipsoid and slightly curved, measuring 150–210 by 40–50 μm. Astrothelium meristosporum is somewhat similar in appearance, but can be distinguished by its narrower (25–40 μm) ascospores than have a distinct septum in the middle, and the ostioles (pores) of its ascomata.
Bathelium pruinosum is a species of corticolous (bark-dwelling) lichen in the family Trypetheliaceae. Found in Bolivia, it was formally described as a new species in 2016 by lichenologists Adam Flakus, Martin Kukwa, and André Aptroot. The type specimen was collected north of San Borja ) at an altitude of 190 m (620 ft); there, the lichen was found growing on bark in a lowland Amazon forest surrounded by Beni savanna. It contains lichexanthone, a lichen product that causes it to fluoresce yellow when lit with a long-wavelength UV light. The species epithet refers to the pruina on both the thallus and pseudostromata.
Bathelium boliviense is a species of corticolous (bark-dwelling) lichen in the family Trypetheliaceae. Found in Bolivia, it was formally described as a new species in 2016 by lichenologists Adam Flakus and André Aptroot. The type specimen was collected from the Plan de Manejo AISU in the Ríos Blanco y Negro Wildlife Reserve, at an altitude of 242 m (794 ft); there, it was found growing on bark in a lowland Amazon rainforest. It is only known to occur in similar habitats near the type locality, and in islands of Amazon forest located within Beni savanna. The lichen is somewhat similar to Bathelium lineare, but unlike that species, B. boliviense contains isohypocrellin in its pseudostromata. This lichen product is quite rare in the family Trypetheliaceae, known to occur only in another two Bolivian Bathelium species.
Bathelium flavostiolatum is a species of corticolous (bark-dwelling) lichen in the family Trypetheliaceae. Found in Bolivia, it was formally described as a new species in 2016 by lichenologists Adam Flakus and André Aptroot. The type specimen was collected from the Plan de Manejo AISU in the Ríos Blanco y Negro Wildlife Reserve (Guarayos Province, Santa Cruz Department at an altitude of 240 m ; there, it was found growing on bark in a lowland Amazon forest. It is only known to occur in similar habitats in Bolivia. The pseudostromata ostioles have nearby white spots that contain lichexanthone; this is a lichen product that causes these spots to fluoresce yellow when lit with a long-wavelength UV light. The species epithet flavostiolatum refers to this property.
Phylloblastia bielczykiae is a species of foliicolous (leaf-dwelling) lichen in the family Verrucariaceae. Found in Bolivia, it was formally described as a new species in 2008 by lichenologists Adam Flakus and Robert Lücking. The type specimen was collected near lake Copaiba ; there, in an isolated island of lowland Amazon rainforest along a savanna, it was found growing on the leaves of a vascular plant. It is only known from the type locality. The species epithet honours the Polish lichenologist Urszula Bielczyk.
Robert Lücking is a German lichenologist, known for his extensive research on foliicolous lichens and his significant contributions to the taxonomy, ecology, and biodiversity of fungi and lichens. He earned his master's and PhD from the University of Ulm, focusing on foliicolous lichens. He has received numerous awards for his work, including the Mason E. Hale Award for his doctoral thesis, the Augustin Pyramus de Candolle prize for his monograph, and the Tuckerman Award twice for his publications in the scientific journal The Bryologist.
Dictyomeridium is a genus of corticolous (bark-dwelling), crustose lichens in the family Trypetheliaceae. It has nine species.
Polymeridium xanthoexcentricum is a species of corticolous (bark-dwelling), crustose lichen in the family Trypetheliaceae. It is found in southwestern Bolivia.
Aspidothelium is a genus of lichen-forming fungi in the family Thelenellaceae. All species in the genus have a tropical distribution and are crustose with a chlorococcoid photobiont partner. Most Aspidothelium species are foliicolous (leaf-dwelling), although some corticolous (bark-dwelling) species are known, as well as a single saxicolous (rock-dwelling) member.
Dictyomeridium lueckingii is a species of corticolous (bark-dwelling) lichen in the family Trypetheliaceae. Found in Bolivia, it was formally described as a new species in 2016 by Adam Flakus and André Aptroot. The type specimen was collected by the first author from Entre Ríos near Soledad at an elevation of 1,700 m (5,600 ft). It is only known to occur at the type locality, in the Tucumano-Boliviano montane forest. The species epithet honours German lichenologist Robert Lücking, "for his magnificent contribution to the knowledge of tropical lichens, on the occasion of his 50th birthday".
Palicella lueckingii is a species of corticolous (bark-dwelling) lecideoid lichen in the family Lecanoraceae. Found in Chile, it was formally described as a new species in 2018 by Pamela Rodriguez-Flakus. The type specimen was collected from the Malalcahuelo National Reserve, where it was found growing on the bark of Araucaria araucana in Valdivian temperate rain forest. It is only known to occur at the type locality. The species epithet honours German lichenologist Robert Lücking, "who has made an outstanding contribution to the knowledge of Neotropical lichens".
Pseudolepraria is a fungal genus in the family Ramalinaceae. It comprises the single species Pseudolepraria stephaniana, a corticolous (bark-dwelling) leprose lichen found only in lowland tropical forests of Bolivia. First described as Lepraria stephaniana in 2010, the species was reclassified into its own genus in 2023 after molecular studies revealed its distinct phylogenetic position. The lichen is characterised by its thick, powdery, green-grey to creamy-white thallus lacking defined edges, and is notable for containing the rare compound 4-O-methylleprolomin. Unlike related Bolivian Lepraria species that occur at higher elevations, P. stephaniana is found only at altitudes between 300 and 470 metres above sea level in transitional zones between Chaco and Amazon rainforest types.
