Fungal Planet description sheets: 1550–1613

Novel species of fungi described in this study include those from various countries as follows: <b>Argentina</b>, <i>Neocamarosporium halophilum</i> in leaf spots of <i>Atriplex undulata</i>. <b>Australia</b>, <i>Aschersonia merianiae</i> on scale insect (<i>Coccoidea</i>), <i>Curvularia huamulaniae</i> isolated from air, <i>Hevansia mainiae</i> on dead spider, <i>Ophiocordyceps poecilometigena</i> on <i>Poecilometis</i> sp. <b>Bolivia</b>, <i>Lecanora menthoides</i> on sandstone, in open semi-desert montane areas, <i>Sticta monlueckiorum</i> corticolous in a forest, <i>Trichonectria epimegalosporae</i> on apothecia of corticolous <i>Megalospora sulphurata</i> var. <i>sulphurata</i>, <i>Trichonectria puncteliae</i> on the thallus of <i>Punctelia borreri</i>. <b>Brazil</b>, <i>Catenomargarita pseudocercosporicola</i> (incl. <i>Catenomargarita</i> gen. nov.) hyperparasitic on <i>Pseudocercospora fijiensis</i> on leaves of <i>Musa acuminata</i>, <i>Tulasnella restingae</i> on protocorms and roots of <i>Epidendrum fulgens</i>. <b>Bulgaria</b>, <i>Anthracoidea umbrosae</i> on <i>Carex</i> spp. <b>Croatia</b>, <i>Hymenoscyphus radicis</i> from surface-sterilised, asymptomatic roots of <i>Microthlaspi erraticum</i>, <i>Orbilia multiserpentina</i> on wood of decorticated branches of <i>Quercus pubescens</i>. <b>France</b>, <i>Calosporella punctatispora</i> on dead corticated twigs of <i>Aceropalus</i>. <b>French West Indies (Martinique)</b>, <i>Eutypella lechatii</i> on dead corticated palm stem. <b>Germany</b>, <i>Arrhenia alcalinophila</i> on loamy soil. <b>Iceland</b>, <i>Cistella blauvikensis</i> on dead grass (<i>Poaceae</i>). <b>India</b>, <i>Fulvifomes maritimus</i> on living <i>Peltophorum pterocarpum</i>, <i>Fulvifomes natarajanii</i> on dead wood of <i>Prosopis juliflora</i>, <i>Fulvifomes subazonatus</i> on trunk of <i>Azadirachta indica</i>, <i>Macrolepiota bharadwajii</i> on moist soil near the forest, <i>Narcissea delicata</i> on decaying elephant dung, <i>Paramyrothecium indicum</i> on living leaves of <i>Hibiscus hispidissimus</i>, <i>Trichoglossum syamviswanathii</i> on moist soil near the base of a bamboo plantation. <b>Iran</b>, <i>Vacuiphoma astragalicola</i> from stem canker of <i>Astragalus sarcocolla</i>. <b>Malaysia</b>, <i>Neoeriomycopsis fissistigmae</i> (incl. <i>Neoeriomycopsidaceae</i> fam. nov.) on leaf spots on flower <i>Fissistigma</i> sp. <b>Namibia</b>, <i>Exophiala lichenicola</i> lichenicolous on <i>Acarospora</i> cf. <i>luederitzensis</i>. <b>Netherlands</b>, <i>Entoloma occultatum</i> on soil, <i>Extremus caricis</i> on dead leaves of <i>Carex</i> sp., <i>Inocybe pseudomytiliodora</i> on loamy soil. <b>Norway</b>, <i>Inocybe guldeniae</i> on calcareous soil, <i>Inocybe rupestroides</i> on gravelly soil. <b>Pakistan</b>, <i>Hymenagaricus brunneodiscus</i> on soil. <b>Philippines</b>, <i>Ophiocordyceps philippinensis</i> parasitic on <i>Asilus</i> sp. <b>Poland</b>, <i>Hawksworthiomyces ciconiae</i> isolated from <i>Ciconia ciconia</i> nest, <i>Plectosphaerella vigrensis</i> from leaf spots on <i>Impatiens noli-tangere</i>, <i>Xenoramularia epitaxicola</i> from sooty mould community on <i>Taxus baccata</i>. <b>Portugal</b>, <i>Inocybe dagamae</i> on clay soil. <b>Saudi Arabia</b>, <i>Diaporthe jazanensis</i> on branches of <i>Coffea arabica</i>. <b>South Africa</b>, <i>Alternaria moraeae</i> on dead leaves of <i>Moraea</i> sp., <i>Bonitomyces buffels-kloofinus</i> (incl. <i>Bonitomyces</i> gen. nov.) on dead twigs of unknown tree, <i>Constrictochalara koukolii</i> on living leaves of <i>Itea rhamnoides</i> colonised by a <i>Meliola</i> sp., <i>Cylindromonium lichenophilum</i> on <i>Parmelina tiliacea</i>, <i>Gamszarella buffelskloofina</i> (incl. <i>Gamszarella</i> gen. nov.) on dead insect, <i>Isthmosporiella africana</i> (incl. <i>Isthmosporiella</i> gen. nov.) on dead twigs of unknown tree, <i>Nothoeucasphaeria buffelskloofina</i> (incl. <i>Nothoeucasphaeria</i> gen. nov.), on dead twigs of unknown tree, <i>Nothomicrothyrium beaucarneae</i> (incl. <i>Nothomicrothyrium</i> gen. nov.) on dead leaves of <i>Beaucarnea stricta</i>, <i>Paramycosphaerella proteae</i> on living leaves of <i>Protea caffra</i>, <i>Querciphoma foliicola</i> on leaf litter, <i>Rachicladosporium conostomii</i> on dead twigs of <i>Conostomium natalense</i> var. <i>glabrum</i>, <i>Rhamphoriopsis synnematosa</i> on dead twig of unknown tree, <i>Waltergamsia mpumalanga</i> on dead leaves of unknown tree. <b>Spain</b>, <i>Amanita fulvogrisea</i> on limestone soil, in mixed forest, <i>Amanita herculis</i> in open <i>Quercus</i> forest, <i>Vuilleminia beltraniae</i> on <i>Cistus symphytifolius</i>. <b>Sweden</b>, <i>Pachyella pulchella</i> on decaying wood on sand-silt riverbank. <b>Thailand</b>, <i>Deniquelata cassiae</i> on dead stem of <i>Cassia fistula</i>, <i>Stomiopeltis thailandica</i> on dead twigs of <i>Magnolia champaca</i>. <b>Ukraine</b>, <i>Circinaria podoliana</i> on natural limestone outcrops, <i>Neonematogonum carpinicola</i> (incl. <i>Neonematogonum</i> gen. nov.) on dead branches of <i>Carpinus betulus</i>. <b>USA</b>, <i>Exophiala wilsonii</i> water from cooling tower, <i>Hygrophorus aesculeticola</i> on soil in mixed forest, and <i>Neocelosporium aereum</i> from air in a house attic. Morphological and culture characteristics are supported by DNA barcodes. <b>Citation</b>: Crous PW, Costa MM, Kandemir H, et al. 2023. Fungal Planet description sheets: 1550-1613. Persoonia 51: 280-417. doi: 10.3767/persoonia.2023.51.08.