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Search for "KŘÍŽ M.": 20 articles found.
KŘÍŽ M., MAROUNEK D. (2023): First record of Squamanita schreieri (Agaricales) in the Czech Republic. [Amanita strobiliformis, Dissoderma, Basidiomycota, ecology, distribution, North Bohemia.] Czech Mycology 75(1): 53-60 (published: 10th May, 2023)
abstract
The paper reports on the first collection of Squamanita schreieri in the Czech Republic, namely at an interesting locality in North Bohemia. Photographs of the only one fresh fruitbody discovered are included, and the authors present its macro- and microscopic description. Ecology and distribution of this very rare agaric are summarised and a brief overview of finds of other representatives of the genus Squamanita s.l. in the Czech Republic is provided.
HOLEC J., KUNCA V., KŘÍŽ M., ZEHNÁLEK P. (2022): Cyphella digitalis (Fungi, Agaricales) – new data on ITS barcode, ecology and distribution in the Czech Republic and Slovakia. [Cyphellaceae, Abies alba, old-growth forests, substrate, phenology.] Czech Mycology 74(1): 77-92 (published: 22nd April, 2022) Electronic supplement
abstract
Records of Cyphella digitalis from the Czech Republic and Slovakia are summarised and discussed. ITS barcode of two collections was obtained to document their conspecificity with the only so far sequenced sample originating from the Alps. In the study area, C. digitalis is rare with ten localities known from the 20th century and nine recorded in the 21st century. They are situated in the Bohemian Forest and several mountain ranges of the Western and Eastern Carpathians. The elevation range of the records is 525–1200 m a.s.l. All records are from Abies alba, mostly branches attached to freshly fallen trunks and sticking out into the air. Basidiomata occur in Fagus-Abies or Fagus-Abies-Picea forests from September to March with a peak in September–November. Most stands represent old-growth forests under protection. Ecology and distribution are discussed in a broad European context. The much lower number of records in the Czech Republic and Slovakia compared to more western countries could have, among other things, also biogeographical reasons, i.e. decrease in occurrence with increasing continentality to the east.
KŘÍŽ M., JINDŘICH O., KOLAŘÍK M. (2019): Contribution to the knowledge of mycobiota of Central European dry grasslands: Phaeoclavulina clavarioides and Phaeoclavulina roellinii (Gomphales). [Ramaria, rock steppes, description, ecology, Bohemia.] Czech Mycology 71(2): 137-150 (published: 6th November, 2019)
abstract
The paper reports on the occurrence of Phaeoclavulina clavarioides and P. roellinii in dry grasslands of rock steppes in the Czech Republic. Occurrence in this habitat is characteristic of both species, formerly considered members of the genus Ramaria, and they are apparently the only known representatives within the Gomphales with this ecology in Central Europe. The authors present macro- and microscopic descriptions and provide rDNA barcode sequence data for both species based on material collected at localities in Bohemia.
HOLEC J., BĚŤÁK J., DVOŘÁK D., KŘÍŽ M., KUCHAŘÍKOVÁ M., KRZYŚCIAK-KOSIŃSKA R., KUČERA T. (2019): Macrofungi on fallen oak trunks in the Białowieża Virgin Forest – ecological role of trunk parameters and surrounding vegetation. [lignicolous fungi, Quercus robur, Europe, fungal diversity, ecology, wood decay, trunk orientation, forest canopy gaps, heat load.] Czech Mycology 71(1): 65-89 (published: 18th June, 2019) Electronic supplement
abstract
All groups of macrofungi were recorded on 32 large fallen trunks of pedunculate oak (Quercus robur) in various decay stages in the strictly protected zone of Białowieża National Park, Poland. The total number of species was 187 with 4–38 species per trunk. The mycobiota of individual trunks was unique, consisting of a variable set of several frequent species, a high number of infrequent to rare ones, and a considerable proportion of mycorrhizal fungi and species preferring conifer wood. Relations between trunk parameters, surrounding vegetation and fungal occurrences were analysed using multivariate statistical methods. The number of fungal species per trunk was significantly correlated with trunk orientation, which reflects the heat load via forest canopy gap, trunk size parameters, percentage of bark cover and contact with the soil. The species-richest trunks were those covered by bark, of larger volume (thick, long), not exposed to heat from afternoon sun, but, simultaneously, with lower canopy cover. Orientation (azimuth) of the fallen trunks proved to be significant also for the fungal species composition of a particular trunk, which also reflected trunk size characteristics, its moss/bark cover and contact with the soil. Presence of some dominants (Ganoderma applanatum, Mycena inclinata, Kretzschmaria deusta, Xylobolus frustulatus) had a significant effect on fungal community composition. Some herbs requiring nutrient-rich soils occurred in the vicinity of trunks with a larger contact area with the soil and in later stages of decay. The process of oak trunk decay in relation to fungi and surrounding vegetation is outlined.
ZÍBAROVÁ L., KOUT J., KŘÍŽ M. (2019): First records of Cartilosoma rene-hentic (Polyporales) in the Czech Republic. [Antrodia, Fomitopsidaceae, polypore, brown-rot fungi, lignicolous fungi.] Czech Mycology 71(1): 37-47 (published: 29th March, 2019)
abstract
The recently described polypore Cartilosoma rene-hentic is recorded, described and illustrated from several localities in the Czech Republic for the first time. Its identity was confirmed both based on morphology and by sequencing ITS regions. The species variability and ecology is discussed and a map of its distribution in the Czech Republic is provided
JANDA V., KŘÍŽ M., HOLEC J. (2019): Addendum to the typification of Butyriboletus regius [epitype,lectotype,nomenclature,taxonomy,Czech Republic] Czech Mycology 71(1): 33-35 (published: 5th March, 2019)
abstract
An epitype is designated for Butyriboletus regius. The authors briefly explain this step.
JANDA V., KŘÍŽ M., KOLAŘÍK M. (2019): Butyriboletus regius and Butyriboletus fechtneri: typification of two well-known species [lectotype, epitype, nomenclature, taxonomy, Czech Republic] Czech Mycology 71(1): 1-32 (published: 2nd January, 2019)
abstract
The paper deals with type material of two species of the genus Butyriboletus, which were described from the Czech Republic, originally as Boletus regius (Krombholz 1983) and Boletus fechtneri (Velenovský 1922). For both species lectotypes are designated, for B. fechtneri also an epitype. The authors present macro- and microscopic descriptions of these species based on the study of rich material including collections from the area of the type localities. Characters distinguishing both species from similar taxa are discussed.
KŘÍŽ M. (2018): Pseudobaeospora albidula (Agaricales) found in the Czech Republic [Tricholomataceae, description, ecology, Bohemia] Czech Mycology 70(1): 83-90 (published: 25th June, 2018)
abstract
The paper reports the probably first collections of Pseudobaeospora albidula in the Czech Republic. The author presents a macro- and microscopic description based on material collected at one locality in the Bohemian Karst Protected Landscape Area in Central Bohemia. Characters distinguishing P. albidula from similar species of the genus Pseudobaeospora are discussed.
JANDA V., KŘÍŽ M., KONVALINKOVÁ T., BOROVIČKA J. (2017): Macroscopic variability of Rubroboletus legaliae with special regard to Boletus spinarii. [Boletus legaliae f. spinarii, ITS sequence data, neotype, epitype, Czech Republic] Czech Mycology 69(1): 31-50 (published: 12th May, 2017)
abstract
The paper deals with the macroscopic variability of Rubroboletus legaliae. A detailed macroscopic description of this species is presented, based on collections from the region of the type locality in Central Bohemia. An epitype is selected because of the age and insufficient representativeness of the holotype. The authors point out that Boletus spinarii, a species described by Hlaváček from South Bohemia as a member of the B. regius complex (genus Butyriboletus at present), is conspecific with the previously described Boletus legaliae (genus Rubroboletus at present); therefore the name B. spinarii is a synonymous name. The alleged distinguishing character of B. spinarii – orange, cinnabar to brick-red pores when young, soon changing colour to orange-yellow or yellow – is occasional according to our long-term field observations, caused possibly by external factors and not fixed within individual mycelia of R. legaliae. The taxonomic value of this deviation is not important enough to consider a separate taxon. Comparison of ITS rDNA sequences supports the conspecifity of both species. Although the name B. spinarii was validly published, the holotype was not deposited in the herbarium designated in the protologue. Therefore, a neotype is designated here.
JANDA V., KŘÍŽ M. (2016): Rubroboletus satanas f. crataegi, validly published name for xanthoid form of Rubroboletus satanas. [Boletus satanas, nomenclature, taxonomy] Czech Mycology 68(1): 109-110 (published: 6th June, 2016)
abstract
The name Rubroboletus is a validly published generic name for the group of boletes including Boletus satanas. Its xanthoid form, Boletus satanas f. crataegi, is validly transferred to the genus Rubroboletus with the aim of correcting two invalid earlier attempts.
KŘÍŽ M., JANDA V. (2016): First records of Tricholoma bresadolanum (Agaricales) in the Czech Republic. [Tricholomataceae, description, ecology, Bohemia, Moravia] Czech Mycology 68(1): 97-108 (published: 31st May, 2016)
abstract
The paper reports on the first collections of Tricholoma bresadolanum in the Czech Republic. The authors present a macro- and microscopic description based on a study of material collected at two localities in the Bohemian Karst Protected Landscape Area in Central Bohemia. The species was also documented from another two sites in Moravia. The characters distinguishing T. bresadolanum from similar species of the genus Tricholoma are discussed.
KŘÍŽ M., ZÍTA V. (2016): First records of gasteromycete Queletia mirabilis in the Czech Republic. [tulostomatoid fungi, Agaricaceae, Basidiomycota, ecology, distribution, North Bohemia] Czech Mycology 68(1): 85-95 (published: 31st May, 2016)
abstract
The paper reports on the first collections of Queletia mirabilis in the Czech Republic, supplemented with photographs of fresh fruitbodies. The authors present a macro- and microscopic description of this species based on a study of material collected at a locality in North Bohemia. Ecology and distribution of this very rare gasteroid fungus are summarised and potential confusion with similar species is discussed.
HOLEC J., KŘÍŽ M., POUZAR Z., ŠANDOVÁ M. (2015): Boubínský prales virgin forest, a Central European refugium of boreal-montane and old-growth forest fungi. [Mt. Boubín, Bohemian Forest, Czech Republic, Basidiomycota, Ascomycota, diversity, ecology, distribution] Czech Mycology 67(2): 157-226 (published: 10th September, 2015)
abstract
Boubínský prales virgin forest is the best-preserved montane Picea-Fagus-Abies forest in the Czech Republic. Its core area (46.67 ha), grown with original montane forest never cut nor managed by foresters, has been protected since 1858. It represents the centre of the present-day nature reserve (685.87 ha). A detailed inventory of its fungal diversity was carried out in 2013–2014. Ten segments differing in habitat and naturalness were studied (235 ha). The total number of species was 659, with the centre of diversity in the core area (503 species) followed by the neighbouring segments grown by natural forests minimally influenced by man. When literature and herbarium data are added, the total diversity reaches a total of 792 taxa. The locality represents a unique refugium for some borealmontane fungi (e.g. Amylocystis lapponica, Laurilia sulcata, Pholiota subochracea), a high number of rare species preferring old-growth forests (Antrodia crassa, A. sitchensis, Baeospora myriadophylla, Chrysomphalina chrysophylla, Fomitopsis rosea, Ionomidotis irregularis, Junghuhnia collabens, Skeletocutis odora, S. stellae, Tatraea dumbirensis), wood-inhabiting and mycorrhizal fungi confined to Abies (Panellus violaceofulvus, Phellinus pouzarii, Pseudoplectania melaena, Lactarius albocarneus), and a high number of indicators of well-preserved Fagus forests (e.g.Climacodon septentrionalis, Flammulaster limulatus, Pholiota squarrosoides). Several very rare fungi are present, e.g. Chromosera cyanophylla, Cystoderma subvinaceum and Pseudorhizina sphaerospora. The value of the local mycobiota is further emphasised by the high number of protected and Red List species. Comparison with other Central European old-growth forests has confirmed that Boubínský prales is a mycological hotspot of European importance.
JANDA V., KŘÍŽ M., REJSEK J. (2014): Supplementary notes on Xerocomus chrysonemus (Boletaceae): bluing context and distribution in the Czech Republic. [Xerocomus chrysonemus, Boletaceae, distribution, ecology, bluing context, Czech Republic] Czech Mycology 66(2): 147-155 (published: 23rd December, 2014)
abstract
The paper summarises the current state of knowledge of the distribution and ecology of Xerocomus chrysonemus in the Czech Republic. The authors present information on newly discovered localities in the Czech Republic and a yet unobserved feature of the species – bluing of the context. A distribution map based on the collections from the Czech Republic is presented and features suitable for field identification are summarised, especially with regard to X. subtomentosus, which frequently occurs together with the species in question.
JANDA V., KŘÍŽ M., GRACA M. (2014): First records of Xerocomus silwoodensis (Boletaceae) in the Czech Republic. [Xerocomus silwoodensis, Boletaceae, description, ecology, Czech Republic] Czech Mycology 66(2): 135-146 (published: 23rd December, 2014)
abstract
The paper contains a report on the first collections of Xerocomus silwoodensis in the Czech Republic. The authors present a macro- and microscopic description of this species based on a study of material collected from one Bohemian and one Moravian locality. Characters distinguishing X. silwoodensis from related species of the genus Xerocomus Quél. s. str. (X. ferrugineus, X. subtomentosus, and X. chrysonemus) are discussed.
ŠUTARA J., JANDA V., KŘÍŽ M., GRACA M., KOLAŘÍK M. (2014): Contribution to the study of genus Boletus, section Appendiculati: Boletus roseogriseus sp. nov. and neotypification of Boletus fuscoroseus Smotl. [Boletus roseogriseus sp. nov., Boletus fuscoroseus, morphology, molecular phylogeny, neotypification, distribution] Czech Mycology 66(1): 1-37 (published: 4th June, 2014)
abstract
The paper deals with Boletus roseogriseus and Boletus fuscoroseus, two closely related species of the genus Boletus, section Appendiculati. B. roseogriseus is described as a new species based on a morphological and molecular study of collected material. B. fuscoroseus, validly published by Smotlacha in 1912, has been often incorrectly named Boletus pseudoregius. This name, however, does not have priority because B. pseudoregius was validly published as late as 1988. In order to contribute to clarification of some controversial questions concerning B. fuscoroseus, the authors have selected a neotype for this species. Descriptions of B. roseogriseus and B. fuscoroseus are accompanied by results of a molecular study (ITS and LSU rDNA sequences) and a discussion of characters distinguishing these species from other representatives of section Appendiculati.
JANDA V., KŘÍŽ M., REJSEK J. (2013): First records of Xerocomus chrysonemus (Boletaceae) in the Czech Republic. [Xerocomus chrysonemus, Boletaceae, description, ecology, Czech Republic] Czech Mycology 65(2): 157-169 (published: 20th December, 2013)
abstract
The paper details the first collections of Xerocomus chrysonemus in the Czech Republic. The authors present a macro- and microscopic description of this species based on the study of material collected at five different localities. Characters distinguishing X. chrysonemus from related species of the genus Xerocomus s. str. (X. ferrugineus, X. subtomentosus, and X. silwoodensis) are discussed. The Latin name X. chrysonemus is a combination of the words ‘chryso’ = golden and ‘nema’ = mycelium, which very accurately describes the characteristic feature of this species, the golden yellow mycelium at the base of stipe.
HOLEC J., KŘÍŽ M. (2012): Tricholoma borgsjoeënse found in the Czech Republic and Tricholoma luridum documented in Slovakia. [Fungi, Agaricales, taxonomy, ecology, distribution] Czech Mycology 64(2): 223-232 (published: 7th December, 2012)
abstract
For the first time, the rare species Tricholoma borgsjoeënse and T. luridum are reported from the Czech Republic and Slovakia, respectively. Tricholoma borgsjoeënse, a species of the T. terreum group, is unique for its thick, distant and grey lamellae with a lilaceous tinge, dark grey pileus with a tomentose-squamulose surface, yellowing stipe base, and unusually large basidiospores and basidia. It was found in a man-made forest composed of Picea abies with admixed Pinus sylvestris. Tricholoma luridum, recognisable by its olive yellow-green tinges on the pileus, distinctly grey lamellae, uniformly ellipsoid, unusually large spores, and 4-spored basidia, was found in a Picea abies–Corylus avellana forest on calcareous soil. It is compared with T. guldeniae, its North European sibling. Notes on taxonomy, ecology and distribution of both species are added.
BĚŤÁK J., PÄRTEL K., KŘÍŽ M. (2012): Ionomidotis irregularis (Ascomycota, Helotiales) in the Czech Republic with comments on its distribution and ecology in Europe. [Ionomidotis irregularis, distribution, ecology, indicator species, old-growth forests] Czech Mycology 64(1): 79-92 (published: 2nd July, 2012)
abstract
The first collections of the rare ascomycete Ionomidotis irregularis from the Czech Republic are described and illustrated with colour photos and drawings of the most important microscopic characters. Data on ecology and occurrence at 17 localities throughout Europe including some unpublished data are summarised. Evidently, I. irregularis prefers strongly decayed trunks of Fagus sylvatica as its substrate within the European beech distribution area. In North-eastern Europe, where Fagus is missing, the occurrence of the fungus is documented on decayed wood of several other deciduous tree species (Alnus incana, Betula sp., Carpinus betulus, Ulmus glabra). Because of its strong preferences for unmanaged, old-growth forests, I. irregularis should be considered an indicator and flagship species of such habitats throughout Europe.
HOLEC J., LANDA J., KŘÍŽ M., DANEŠ P. (2013): Index to fungal genera and species published in Czech Mycology, formerly Česká Mykologie, Volumes 1-64. Czech Mycology 62(2): 103-384 (published: 19th April, 2013)
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