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Sporobolomyces lactosus is a pink yeast-like fungus that is not congeneric with other members of Sporobolomyces (Basidiomycota, Microbotryomycetes, Sporidiobolales). During our ongoing studies of pink yeasts we determined that S. lactosus was most closely related to Pseudeurotium zonatum (Ascomycota, Leotiomycetes, Thelebolales). A molecular phylogenetic analysis using sequences of the ITS region and the small and large subunit (SSU, LSU) rRNA genes, indicated that four isolates of S. lactosus , including three ex-type isolates, were placed in Thelebolales with maximum support. A new genus is proposed to accommodate S. lactosus , Inopinatum . This is the first pink yeast reported in Leotiomycetes. 

Neotropical cloud forests are biologically and ecologically unique and represent a largely untapped reservoir of species new to science, particularly for understudied groups like those within the Kingdom Fungi. We conducted a three-week fungal survey within Cusuco National Park, Honduras and made 116 collections of fungi in forest habitats at 1287–2050 m a.s.l. Undescribed species are likely to be present in those collections, including members of the genera Calostoma (Boletales), Chlorociboria, Chlorosplenium, Ionomidotis (Helotiales), Amparoina, Cyathus, Gymnopus, Pterula (Agaricales), Lactifluus (Russulales), Mycocitrus (Hypocreales), Trechispora (Trechisporales), and Xylaria (Xylariales). In this paper, we discuss the contributions and impacts of mycological surveys in the Neotropics and propose the establishment of a long-term mycological inventory at Cusuco National Park—the first of its kind in northern Central America. 

Studies of Trochila (Leotiomycetes, Helotiales, Cenangiaceae) are scarce. Here, we describe two new species based on molecular phylogenetic data and morphology. Trochila bostonensis was collected at the Boston Harbor Islands National Recreation Area, Massachusetts. It was found on the stem of Asclepias syriaca , representing the first report of any Trochila species from a plant host in the family Apocynaceae. Trochila urediniophila is associated with the uredinia of the rust fungus Cerotelium fici . It was discovered during a survey for rust hyperparasites conducted at the Arthur Fungarium, in a single sample from 1912 collected in Trinidad. Macro- and micromorphological descriptions, illustrations, and molecular phylogenetic analyses are presented. The two new species are placed in Trochila with high support in both our six-locus (SSU, ITS, LSU, rpb1 , rpb2 , tef1 ) and two-locus (ITS, LSU) phylogenetic reconstructions. In addition, two species are combined in Trochila : Trochila colensoi (formerly placed in Pseudopeziza ) and T. xishuangbanna (originally described as the only species in Calycellinopsis ). This study reveals new host plant families, a new ecological strategy, and a new country record for the genus Trochila . Finally, our work emphasizes the importance of specimens deposited in biological collections such as fungaria. 

A new ectomycorrhizal species was discovered during the first survey of fungal diversity at Brijuni National Park (Croatia), which consists of 14 islands and islets. The National Park is located in the Mediterranean Biogeographical Region, a prominent climate change hot-spot. Inocybe brijunica sp. nov., from sect. Hysterices (Agaricales, Inocybaceae), is described based on morphology and multilocus phylogenetic data. The holotype collection was found at the edge between grassland and Quercus ilex forest with a few planted Pinus pinea trees, on Veli Brijun Island, the largest island of the archipelago. It is easily recognized by a conspicuous orange to orange–red–brown membranaceous surface layer located at or just above the basal part of the stipe. Other distinctive features of I. brijunica are the medium brown, radially fibrillose to rimose pileus; pale to medium brown stipe with fugacious cortina; relatively small, amygdaliform to phaseoliform, and smooth basidiospores, measuring ca. 6.5–9 × 4–5.5 µm; thick-walled, utriform, lageniform or fusiform pleurocystidia (lamprocystidia) with crystals and mostly not yellowing in alkaline solutions; cheilocystidia of two types (lamprocystidia and leptocystidia); and the presence of abundant caulocystidia only in the upper 2–3 mm of the stipe. Phylogenetic reconstruction of a concatenated dataset of the internal transcribed spacer region (ITS), the nuclear 28S rRNA gene (nrLSU), and the second largest subunit of RNA polymerase II (rpb2) resolved I. brijunica and I. glabripes as sister species.