Fungi named in 2023

Agroathelia rolfsii is a corticioid fungus in the order Amylocorticiales. It is a facultative plant pathogen and is the causal agent of "southern blight" disease in crops.

Exidia nothofagi is a species of fungus in the family Auriculariaceae. Basidiocarps (fruit bodies) are gelatinous, pallid, minute and pustular at first then coalescing and becoming irregularly effused. It grows on dead branches of southern beech and is known from New Zealand.

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Transdrakea is a small genus of lichen-forming fungi in the family Teloschistaceae. It comprises two species of crustose lichens that grow on rocks. The genus is characterised by its poorly developed thallus, zeorine apothecia (fruiting bodies), and small ascospores with thin septa. Chemically, Transdrakea species contain anthraquinones, particularly parietin.

Tamasia is a fungal genus in the family Ramalinaceae. It comprises the single species Tamasia fijiensis, a foliicolous (leaf-dwelling) crustose lichen.

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

Paracoccidioides lutzii is a dimorphic fungus that is one of the causal agents of paracoccidioidomycosis, together with Paracoccidioides brasiliensis. Unlike P. brasiliensis, which is found throughout Central and South America, P. lutzii is found only in Brazil and Ecuador. It is less virulent than P. brasiliensis.

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Chaenotricha is a small genus of lichen-forming fungi in the family Coniocybaceae. Species live fungicolously, growing on the fruiting bodies of the poroid bracket fungus Trichaptum, and produce tiny, pin-like, dust-sporing fruiting bodies typical of calicioid lichens. The genus was established in 2023 to accommodate a distinct lineage of Trichaptum specialists. These lichens occur on standing dead conifer trunks and snags in boreal and hemiboreal forests of northern Europe and North America. The two described species are distinguished primarily by stalk length and ascospore size, though DNA

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Astrothelium chulumanense is a little-known species of corticolous (bark-dwelling), crustose lichen in the family Trypetheliaceae. Found in the Yungas montane forest of Bolivia, it was formally described as a new species in 2023. It is characterized by pseudostromata not differing in colour from the thallus, perithecia immersed for the most part in the thallus with the upper part elevated above and covered with orange pigment, apical and fused ostioles, the absence of lichexanthone, a clear hamathecium, eight-spored asci, and large, muriform ascospores with a thickened median septum.

Agroathelia coffeicola is a sclerotial fungus, commonly called Sclerotium coffeicola, now classified in the order Amylocorticiales. It is a facultative plant pathogen and is the causal agent of target-spot disease of coffee and other tropical plants. It is known from Brazil, Costa Rica, Guyana, Mexico, Puerto Rico, Suriname, Trinidad, Tobago, Venezuela, Panama and Sierra Leone.

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Thaxterogaster artosoides is a species of fungus that is endemic to Aotearoa New Zealand and it is in the genus Thaxterogaster.

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