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Search for "BOLETUS|pulverulentus": 12 articles found in Index.

ŠUTARA J. (1989): The delimitation of the genus Leccinum.  Česká Mykologie 43(1): 1-12   (published: 6th February, 1989)
  abstract   The International Botanical Congress in Berlin 1987 accepted a change of Art. 63 of the nomenclatural rules. According to the new, changed wording of Art. 63 the generic name Leccinum is now legitimate. This fact is respected by the author of this paper and therefore Leccinum is here used as a correct name for the genus in question. The genus Leccinum S. F. Gray (Boletaceae) is distinguished from the other boletes by a peculiar arrangement of the surface tissues of the stipe. This peculiar type of the stipe covering is here described. The differences between the stipe coverings of the genera Leccinum and Boletus Fries are discussed in detail. A list of the examined material with notes on some species is appended. The following new combinations are proposed: Leccinum depilatum, Leccinum fragrans, Leccinum luteoporum, Leccinum niveum, Leccinum pseudoscabrum and Leccinum rufescens.

DERMEK A. (1968): A contribution toward a mycoflora of the Boletaceae of Záhorská nížina and the environs of Bratislava (tab. 68).  Česká Mykologie 22(2): 106-111   (published: 1968)
  abstract   The author lists Boletaceae species collected in 1963–1967 in the Záhorská lowlands and around Bratislava, and describes the rare species Xerocomus armeniacus (Quél.) Quél.

KOTLABA F., POUZAR Z. (1962): Agarics and Boleti (Agaricales) from the Dobročský Virgin Forest in Slovakia.  Česká Mykologie 16(3): 173-191   (published: 6th July, 1962)

RAMSHAJ Q., RUSEVSKA K., TOFILOVSKA S., KARADELEV M. (2021): Checklist of macrofungi from oak forests in the Republic of Kosovo.   [fungi, taxa, Balkan Peninsula, diversity, ecology, rare species.]  Czech Mycology 73(1): 21-42   (published: 12th February, 2021)   Electronic supplement
  abstract   In the period from 2017 to 2019 a survey of the diversity of fungi in oak forests in the Republic of Kosovo was conducted. The survey included 31 localities, mainly in Quercetum frainetto-cerris and Querco-Carpinetum orientalis communities. As a result of the fieldwork performed in various seasons, a first checklist of fungi from oak forests in the country is provided. A total of 220 taxa (219 species and one forma) were identified. The majority of the identified taxa belong to Basidiomycota (206) and only 14 species to Ascomycota. The paper provides a list of all recorded species with data on locality, altitude, time of collection, forest association and type of substrate. Distribution and ecology of selected rare or threatened species are briefly discussed.

ŠUTARA J. (2014): Anatomical structure of pores in European species of genera Boletus s.str. and Butyriboletus (Boletaceae).   [Boletaceae, anatomy, pores, cheilocystidia]  Czech Mycology 66(2): 157-170   (published: 23rd December, 2014)
  abstract   One of the characteristic features of European species of genera Boletus s.str. and Butyriboletus is a conspicuous development of their cheilocystidia covering their pores in youth. The development of this type of cheilocystidia is partly supported by the growth of hyphae of the hymenophoral trama under the cheilocystidia. This special arrangement of cheilocystidia is an important diagnostic character distinguishing European species of the above-mentioned genera from other groups of boletes in Boletaceae. The microscopical structure of this type of pores is described in detail.

ŠUTARA J. (2008): Xerocomus s. l. in the light of the present state of knowledge.   [Boletaceae, Xerocomus, Xerocomellus, Hemileccinum, generic taxonomy, anatomy, histology]  Czech Mycology 60(1): 29-62   (published: 4th July, 2008)
  abstract   The definition of the generic limits of Xerocomus s. l. and particularly the delimitation of this genus from Boletus is very unclear and controversial. During his study of European species of the Boletaceae, the author has come to the conclusion that Xerocomus in a wide concept is a heterogeneous mixture of several groups of species. These groups are separated from each other by different anatomical and some other characters. Also recent molecular studies show that Xerocomus s. l. is not a monophyletic group. In agreement with these facts, the European species of Xerocomus s. l. whose anatomy was studied by the present author are here classified into the following, more distinctly delimited genera: Xerocomus s. str., Phylloporus, Xerocomellus gen. nov., Hemileccinum gen. nov. and Pseudoboletus.Boletus badius and Boletus moravicus, also often treated as species of Xerocomus, are retained for the present in the genus Boletus. The differences between Xerocomus s. str., Phylloporus, Xerocomellus, Hemileccinum, Pseudoboletus and Boletus (which is related to this group of genera) are discussed in detail. Two new genera, Xerocomellus and Hemileccinum, and necessary new combinations of species names are proposed.

ŠUTARA J. (2005): Central European genera of the Boletaceae and Suillaceae, with notes on their anatomical characters.   [Boletaceae, Suillaceae, generic taxonomy, anatomical characters]  Czech Mycology 57(1-2): 1-50   (published: 31st August, 2005)
  abstract   A taxonomic survey of Central European genera of the familiesBoletaceae and Suillaceae with tubular hymenophores, including the lamellate Phylloporus, is presented. Questions concerning the delimitation of the bolete genera ar ediscussed. Descriptions and keys to the families and genera are based predominantly on anatomical characters of the carpophores. Attention is also paid to peripheral layers of stipe tissue, whose anatomical structur ehas not been sufficiently studied. The study of these layers, above all of the caulohymenium and the lateral stipestratum, can provide information important for a better understanding of relationships between taxonomic groups in these families. The presence (or absence) of the caulohymenium with spore-bearing caulobasidia on the stipe surface is here considered as a significant generic character of boletes. A new combination, Pseudoboletus astraeicola (Imazeki) Šutara, is proposed.

HOLEC J. (1994): The ultrastructure of the spore wall and ornamentation in the Xerocomus group of Boletus.   [Xerocomus, Boletus, Strobilomyces, ultrastructure, transmission electron microscope, spore wall, ornamentation, taxonomy]  Czech Mycology 47(3): 173-184   (published: 17th June, 1994)
  abstract   The spore wall of five selected species of the Xerocomus group of Boletus was studied with a transmission electron microscope (TEM). The wall is composed of five layers in all the species studied: a very thin electron-dense outer layer 1 (ectosporium), a moderately electron-dense layer 2 (perisporium), a thick and amorphous electron-dense middle layer 3a (exosporium) that passes gradually into a thinner, granular or granular-fibrillar and moderately electron-dense layer *3b (episporium), and an almost electron-transparent layer 4 (endosporium). A smooth spore surface was found in Boletus pulverulentus and B. chrysenteron. A striate exosporium covered by the ectosporium and the perisporium was found in B. pruinatus, rough warts originating from a disrupted perisporium and ectosporium in B. parasiticus, and very fine warts composed of outgrowths of the ectosporium and part of the perisporium in B. subtomentosus. A species of an other group of the Boletales with conspicuous ornamentation (Strobilomyces strobilaceus) was examined as comparative material. The results of this TEM study are compared with SEM photographs of the spores of Xerocomus published by other authors, and methodologicalproblems with the examination of spore wall ornamentation are discussed. The data revealed confirm the high value of spore wall architecture and ornamentation in the taxonomy of this genus. The separation of B. parasiticus in a new genus Pseudoboletus Sutara is supported by its spore wall ornamentation that is unique in the Boletaceae.

ŠUTARA J. (1991): Pseudoboletus, a new genus of Boletales.  Česká Mykologie 45(1-2): 1-9   (published: 15th May, 1991)
  abstract   The stipe surface of the boletes which have been placed usually in the genera Boletus and Xerocomus was studied. It was found that members of both these genera have the stipe surface fertile, composed of a caulohymenium with sporulating caulobasidia. An exception in this group is the species Boletus parasiticus whose stipe surface is sterile, covered with a trichodermium. This species is here separated into a new genus named Pseudoboletus. A new combination, Pseudoboletus parasiticus, is proposed. The species Pseudoboletus parasiticus is described in detail. Several notes on anatomy and taxonomy of this group of boletes are appended.

KOTLABA F. (1969): Congressus mycologorum Daniae and Assens anno 1968.  Česká Mykologie 23(3): 197-202   (published: 15th July, 1969)
  abstract   Danish mycologists have for many years organized a small annual national mycological congress, dedicated exclusively to collecting and identifying fungi. In 1968, the author was invited as the sole foreign participant. The congress, supported by the Flora Agaricina Danica foundation, was excellently organized with superior technical facilities. The author expresses gratitude to his Danish hosts and shares comparisons between Danish and Czechoslovak mycoflora.

LUKAVEC A. (1954): Hřib nachový - Boletus purpureus Fr. a jeho problematika.  Česká Mykologie 8(1): 26-30   (published: 18th February, 1954)

PILÁT A. (1953): Suchohřib hvězdákožijný - Xerocomus astereicola Imazeki.  Česká Mykologie 7(3): 103   (published: 15th September, 1953)

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