Adriano Afonso Spielmann

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Allographa itatiaiensis is a little-known species of lichen-forming fungus in the family Graphidaceae. Originally described in 2011 as a member of the genus Graphis, it was later transferred to Allographa in 2018 during a major reorganization of script lichen genera. The species forms thin, greenish-grey crusts on tree bark, distinguished by small spherical outgrowths and star-shaped clusters of slender, branching fruiting bodies. It is known only from humid Atlantic Forest environments in southeastern Brazil, where it grows on tree bark in shaded, moist conditions.

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Lepraria brasiliensis is a species of dust lichen in the family Stereocaulaceae. Found in Brazil, it was formally described as a new species in 2010 by John Elix, Adriano Spielmann, and Dag Øvstedal. It has a thin, greyish-green leprose (powdery) thallus up to 10 cm (4 in) wide that grows on bark. The holotype was collected in April 2006 from Caraça Natural Park (Parque Natural do Caraça) in Catas Altas, Minas Gerais, Brazil. The specimen, designated as Spielmann, Canez & Marcelli 2345, was found growing on the trunk of a Eucalyptus tree in open forest at 1,265 m (4,150 ft) elevation. The

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Leptogium marcellii is a species of gelatinous lichen in the family Collemataceae. It was described in 2018 from the South Shetland Islands, Antarctica. It has overlapping lobes with small, flattened lobules (little flap-like outgrowths used for vegetative reproductio), a distinctly hairy underside, and a soft, gelatinous interior that swells when wet. Internally, its fungal threads (hyphae) are arranged in a loose, sponge-like network around the cyanobacteria rather than as neat vertical "columns", a key trait used to separate it from similar Antarctic species. Apothecia, when present, have

Dictyonema obscuratum is a species of basidiolichen in the family Hygrophoraceae. Originally discovered in Brazil and later recorded in Bolivia and Colombia, its cryptic, olive-green thallus sets it apart from similar species like Dictyonema phyllophilum and D. schenckianum.

Cora campestris is a species of basidiolichen in the family Hygrophoraceae. It was formally described as a new species in 2016 by Manuela Dal Forno, Sionara Eliasaro, and Adriano Afonso Spielmann. The specific epithet campestris refers to its habitat in the high-altitude fields (campos de altitude) of southeastern Brazil, where it grows on exposed rock outcrops. It forms rosettes up to 8 cm across with dark olive-grey lobes that have light grey rolled-in edges and orange-brown reproductive patches arranged in a net-like pattern on the underside.

Acantholichen campestris is a species of basidiolichen in the family Hygrophoraceae. Found in Brazil, it was formally described as a new species in 2016 by Manuela Dal-Forno, Adriano Spielmann, and Robert Lücking. The type specimen was collected in Campos do Quiriri (Campo Alegre, Santa Catarina) at an altitude of 1,380 m (4,530 ft). Here, at the top of the mountain on exposed rocky outcrops, it was found growing on rocks growing amongst liverworts and other lichens. The specific epithet, which contains the Latin word campis (meaning "plains" or "fields"), refers to the habitat of the lichen.

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