Soňa Jančovičová

Comenius University Bratislava · Department of Botany

Melanoleuca is one of the taxonomically most complicated genera of Agaricomycetes. The aim of this study is a taxonomic revision of European specimens confused with M. angelesiana A.H. Sm. and a delimitation of four species, M. brachyspora Harmaja, M. graminicola (Velen.) K€ uhner & Maire, M. rufipes Bon and M. stridula (Fr.) Singer. The research i...

Melanoleuca is one of the taxonomically most complicated genera of Agaricomycetes. The aim of this study is taxonomic revision of European specimens confused with M. angelesiana A.H. Sm. and delimitation of four species, M. brachyspora Harmaja, M. graminicola (Velen.) Kühner & Maire, M. rufipes Bon and M. stridula (Fr.) Singer. The research is base...

The fifth botanical excursion within the series "Letʼs go to the field" leads to the Pečniansky les (Podunajská nížina Lowland, Bratislava City, right bank of the Danube River). It is focused on bryophytes and non-lichenized macroscopic fungi in association with vascular plants. The route of excursion has five stops with regard to the occurrence of...

Crepidotus applanatus is known as a common wood inhabiting fungus widely distributed throughout the Northern Hemisphere. There have been contrasting opinions about the delimitation and taxonomic treatment of the similar species C. malachius. Our phylogeny did not support the close relationship of these two morphologically similar species and the gr...

Revision of the taxonomically complicated European Melanoleuca taxa with well-developed macrocystidia (subgenus Melanoleuca) is presented. The species are delimited by macro- and micromorphological characters and by multilocus molecular data based on internal transcribed spacer (ITS), second largest subunit of RNA polymerase I (rpb2), and translati...

The great book of plants, rocks, minerals and fossils is a unique, richly illustrated work, which in a comprehensive form gives an image of the flora of the whole of Central Europe. The updated texts present in an engaging way information on the life, reproduction, distribution, occurrence of plants and their importance for humans, as well as data...

The 4th botanical excursion within the series „Let‘s go to the field″ took place in the Malé Karpaty Mts. in the wine-growing town of Svätý Jur and its surroundings. The field trip leads through the deciduous mixed forests and habitats of the cultural landscape, such as vineyards, ruins of the Biely Kameň Castle, anthropogenic and ruderal sites. On...

This is the third of a series of papers intended to introduce the botanical excursions for students that are organised by the Department of Botany, Faculty of Natural Sciences, Comenius University in Bratislava. In this paper, we present our knowledge and experiences gained within the course Botany field practice for students of the second semester...

We present the first phylogenetic evaluation of the genus Dermoloma, which is resolved as monophyletic and closely related to Pseudotricholoma, a poorly known Dermoloma-like lineage within the family Tricholomataceae. The position of Dermoloma is confirmed by the placement of the type species, Dermoloma cuneifolium, represented by multiple samples...

We present the first phylogenetic evaluation of the genus Dermoloma , which is resolved as monophyletic and closely related to Pseudotricholoma , a poorly-known Dermoloma -like lineage within the family Tricholomataceae. The position of Dermoloma is confirmed by the placement of the type species, D. cuneifolium , represented by multiple samples inc...

This study evaluates the morphological concept of Crepidotus variabilis and similar taxa based on basidiospore and cheilocystidia characters. A phylogenetic analysis of the ITS region clearly distinguished C. variabilis var. variabilis from the two other distinct taxa of the same lineage, C. variabilis var. trichocystis and C. neotrichocystis. We a...

This study reports on the discovery of a new subgenus, Russula subg. Glutinosae, having an Eastern North American-East Asian distribution. A multigene phylogeny places this new subgenus sister with strong support to a well-supported clade composed of subgenera Compactae and Archaeae. It holds only two very rare, northern hemisphere species, the Nor...

The study deals with the last unexplored morphological group of the genus Hodophilus defined by absence of distinct odours, absence of yellow colours and absence of darker dots on the stipe. The phylogenetic reconstruction of the whole genus based on nrITS, nrLSU and RPB2 sequences placed all European members having these morphological characters i...

The Russula globispora lineage is a morphologically and phylogenetically well-defined group of ectomycorrhizal fungi occurring in various climatic areas. In this study we performed a multi-locus phylogenetic study based on collections from boreal, alpine and arctic habitats of Europe and Western North America, subalpine collections from the southea...

Phylogenetic reconstruction of Hodophilus species with a yellow colour on the stipe based on nrITS, nrLSU and rpb2 sequences revealed six European species. All these species correspond to the widely accepted European concept of a single species Hodophilus micaceus. Four of these species are described and illustrated. H. micaceus and H. phaeoxanthus...

Among 45 Russula species and infraspecific taxa described by J. Blum, only few are currently accepted. Here we present a case study on R. formosa nom. illeg. (homotypic synonym of R. blumiana), R. decipiens var. ochrospora nom. inval. and R. roseobrunnea. The study is based on sequences and morphological observations of authentic herbarium material...

In this paper, the authors present modern microscopical studies for 28 type specimens of Russula species described by C.H. Peck, thereby completing the revision of all 44 Russula taxa described by this author and for which type specimens were available. Our results suggest that with eventual exception of R. granulata var. lepiotoides (a likely syno...

Crepidotus stenocystis and C. brunnescens are morphologically similar species defined by globose to subglobose spores, the presence of clamp connections in all tissues and bottle-like or flask-like cheilocystidia. They are also similar in the pileal aspect which is hygrophanous, glabrous or white-fibrillose, at first white but becoming brownish wit...

Seven Melanoleuca taxa related to M. exscissa were studied based on macromorphological and micromorphological characters, and DNA sequences of three genes of recent collections and herbarium specimens. One species, M. griseobrunnea from the Korea is described as new to science. The type specimens of M. cinerascens, M. diverticulata, M. kuehneri, M....

Hodophilus atropunctus is traditionally defined as the only species of this genus with dark brown or black dots on the stipe. Multi-locus phylogenetic reconstruction recognised two distinct clades morphologically corresponding to this species concept. The limited morphological description in the protologue of H. atropunctus and absence of a type sp...

Russula is one of the most speciose genera of mushroom-forming fungi, but phylogenetic relationships among species and subgeneric groupings are poorly understood. Our multi-locus phylogenetic reconstruction places R. firmula, R. rubra, R. rutila and R. veternosa in a well-supported Rubrinae clade, belonging to the Integrae clade of the Crown clade...

Species Panellus ringens and P. violaceofulvus are similar in some respects and different in others. They look alike macroscopically, especially in having pleurotoid habit and violet-brown and/or red-brown colours of basidiomata, but differ microscopically, distinctly in size of spores. For each species, description and illustration of macroscopic...

Four European Hodophilus species with an odour similar to naphthalene, a strong unpleasant odour similar to that of mothballs, are recognized based on sequence and/or morphological data. The traditional concept defines Ho. foetens as the only Hodophilus species with a naphthalene odour in Europe. This name is now assigned to one of the studied spec...

Five North American Hodophilus species with naphthalene-like odours are now recognized based on sequence and (or) morphological data and molecular annotation of type collections. Two well-supported eastern North American species do not match any of the studied types and are described here as new: Hodophilus hesleri and Hodophilus smithii. The previ...

The current generally accepted concept of Russula maculata defines the species by yellow-brownish spots on the basidi-omata, an acrid taste, a yellow spore print and a red pileus. This concept was tested using collections originating from various geographical areas mainly in Europe. Analyses of the ITS region suggested that there were three species...

In Slovakia, two species of the genus Callistosporium are known, C. luteo-olivaceum and C. pinicola, both only with low number of collections and a brief description of macroscopic and microscopic characters. In this paper, information about all Callistosporium collections from Slovakia is gathered and data on species ecology, distribution and thre...

Melanoleuca brevipes (basionym Agaricus brevipes) represents one of the most frequently identified Melanoleuca species. However, there are several concepts of this taxon, and thus the identity of this species is unclear. This species was studied, based on the original table by Bulliard, macromorphological and micromorphological characters, and DNA...

In this second contribution on native American species in Russula subsect. Decolorantes, the authors focus on four additional species that exhibit a blackening context: two species from the West Coast, R. californiensis and R. occidentalis, and two species from the East Coast, R. rubescens and R. rubriceps. A key to the species in Decolorantes is p...

A short history to the study of Russula in the Western United States is provided and for the first time an exhaustive list of all 49 taxa described from this part of the country has been compiled. As a start to a revision of these species, a first series of four holotypes (one from California and three from the Pacific Northwest) have here been stu...

Crepidotus malachioides was described based on Ukrainian material in 2008. It is similar to some other Crepidotus species in having globose to subglobose spores with a truncate-baculate surface, but is unique by its hymenidermic pileipellis structure with capitate pileocystidia. A detailed description along with illustrations of basidiomata and mic...

In a recent paper, Lepiota rufipes ss. orig. (a North American taxon) was synonymised with Cystolepiota seminuda. Accordingly, Lepiota coloratipes sp. nov. is here described for the taxon usually referred to as L. rufipes in Europe. On the basis of recent collections from Europe and China, a full description, colour pictures of basidiomata, line dr...

The diversity and frequency of Russulaceae basidiomata (Lactarius, Russula) were studied in the phytocoenologically defined oak forests of three selected localities in the western part of Slovakia in years 2005–2009. Based on the ecological amplitude and the frequency, common and rare, as well as characteristic species were defined for each localit...

Entoloma jahnii – a species of the Entoloma subgen. Claudopus, sect. Claudopus – is reported from Slovakia for the first time. Diagnostic characters are discussed, illustrated and compared with those of similar and/or misidentified Entoloma taxa, especially of E. byssisedum. Data on the ecology and occurrence of E. jahnii in Europe are provided.

The types or authentic material of four members of Russula subsect. Maculatinae recognized by Romagnesi were studied: R. decipiens, R.decipiens var. vermiculata nom. inval., R. deceptiva and R. romagnesii. All studied specimens showed several similar micromorphological characters, particularly important one-celled pileocystidia, suggesting their cl...

Rare species, Tectella patellaris, is documented by three collections from Slovakia – two from Stolické vrchy Mts (2000, 2012) and one from Poľana Mts (2012). We present description and illustration of macro- and micromorphological characters of the collections and compliment data on incidence and ecology in Europe.

Pseudobaeospora terrayi is described and illustrated as a new member of the genus defined by (1) yellowish-greenish discoloration in 5 % KOH, (2) pileipellis with a well developed suprapellis of narrower aeriferous hyphae and wider hyphae in the subpellis, (3) relatively small, slender white basidiomata with distant gills, and (4) with cheilocystid...

A taxonomic and nomenclatural revision of some representatives of Clavariaceae is presented based on extensive collecting in central and western Europe. Five species originally described from Europe are identified, redescribed and delimited: Clavaria fragilis, Ramariopsis crocea, R. corniculata, R. helvola and R. pulchella. Lectotypes, epitypes or...

D. (2011): The ecological knowl-edge on Crepidotus kubickae – a case study from central Slovakia. – Czech Mycol. 63(2): 215–241. The ecological knowledge on Crepidotus kubickae is not only insufficient in Slovakia but also in the rest of Europe. In the years 2008–2011, a case study was therefore carried out in central Slovakia to find out more data...

Multivariate morphometric analyses of micromorphological characters measured on 35 specimens of Flammulina fennae and related species show that only a combination of spore dimensions and ixohyphidia characters are suitable for delimitation of this species. In order to confirm species identifications based on micromorphology, ribosomal ITS DNA seque...

S. (2010): Crepidotus ehrendorferi in Slovakia and taxo-nomic notes on related species. Czech Mycol. 61(2): 175–185. Described in 1988 from Austria, Crepidotus ehrendorferi Hauskn. et Krisai was recorded in Slovakia in 2009 for the first time. It was found on Tilia cordata, a hitherto unknown host. Macro– and micromorphological characters of the Sl...

Study and analysis of type and other specimens of Crepidotus kubickae and related taxa support the name as a distinct species.

Two specimens from Germany and one from South Dakota, USA, were identified as Flammulina rossica during the examination of the München herbarium (M) material of the genus Flammulina. Micromorphological characters of these specimens are described and illustrated. The variability and delimitation of F. rossica is discussed and the knowledge of its di...

Although described in 1977 from Germany, Flammulina ononidis Arnolds was found in Slovakia in 2002 for the first time. Macro– and micromorphological characters of the Slovak collections are described and illustrated. The delimitation of F. ononidis is discussed and the knowledge of its distribution, ecology, biology and threat is summarised.

Ripková S., Adamčík S. and Kučera V. (2007): New, rare and less known macro-mycetes in Slovakia II. – Czech Mycol. 59(2): 185–199. Data on ecology, occurrence and endangerment of six rare and/or less known macromycetes col-lected in Slovakia are given. Although described more than a hundred years ago, only recent collec-tions of Ascotremella fagine...

Three species of the genus Pseudobaeospora were determined from the material collected in Slovakia: P. mutabilis, P. basii and P. celluloderma. All three species have a similar structure of the pileipellis: erected chains of inflated cells forming a transition between hymeniderm and epithelium. Pseudobaeospora celluloderma and P. mutabilis are rede...

Kalchbrenner's illustration of Agaricus fodiens is the only part of the original material available for a taxon currently accepted in Rhodocollybia . The incorrectly designated neotype is replaced here with a lectotype (illustration). A specimen collected in the area of the type locality is proposed as epitype and R. fodiens is re-described.

43–66. Russulaceae taxa were studied in selected (nine) localities in the Vihorlatské vrchy Mts. (Slovakia) in the years 2001–2003. The study was focused on their diversity, ecology and distribution. A total of 75 spe-cies were identified, from which four species, Lactarius romagnesii, Russula odorata, R. sericatula and R. zvarae, were not publishe...

Taxa of the genus Pholiota described by C. Kalchbrenner Ð all of them described from the area of present day Slovakia Ð are revised and identified. Agaricus decussatus subsp. illustris is conspecific with Pholiota lubrica, and Agaricus punctulatus represents Pholiota gummosa. The specimen collected from the area of the type locality is designated a...

Taxa of Hygrophorus described by Kalchbrenner from Slovakia were studied. Original descriptions were compared with data of recently collected specimens from type areas and current taxonomic concepts. Kalchbrenner's illustrations of Hygrophorus erubescens var. capreolarius, H. hypothejus var. mendax and H. lucorum were selected for lectotypes. Epity...

Many species of the agaric genus Crepidotus are distinguished based on single, potentially variable morphological characters. Numerous collections of Crepidotus belonging to a species complex that includes C. crocophyllus and C. nephrodes were examined from Central and Eastern Europe and North America. Morphological observations were supplemented b...

During the fourth meeting of young mycologists in the Protected Landscape Area of Třeboňsko (16. – 19. October 2003) we found a taxon of the genus Pseudobaeospora characterized by the absence of clamp-connections. Comparing our specimen with the two other European species without clamp-connections, P. oligophylla (Singer) Singer and P. pillodii (Qu...

Pseudobaeospora basii is described on the basis of specimens from the Biele Karpaty Mts. in Slovakia. Typical characters of this taxon are almost exclusively pale brown tints of basidiocarps, pileipellis palisoderm composed of chains of inflated cells and various shapes of cheilocystidia and caulocystidia. Delimitation of the species is based on co...

Crepidotus macedonicus is reported for the first time in Slovakia and Central Europe. The collections are described, illustrated, and compared with European orange gilled Crepidotus species.

Research on biodiversity of macrofungi of Danube islands Sihoť and Sedláčkov ostrov (city of Bratislava) resulted in 26 species of Ascomycetes. Ecology, chorology and taxonomy of selected taxa of Discomycetes and Pyrenomycetes was studied.