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BOLETELLUS":
6 articles found in Index.
GHOSH A., KUMAR A., HEMBROM M.E., CHAKRABORTY D. (2024): Amanita indovaginata, a new species from tropical Sal forest in India. [Amanitaceae, Basidiomycota, 3-locus phylogram, Shorea robusta, Vaginatae.] Czech Mycology 76(1): 1-15 (published: 2nd February, 2024)
abstract
Macrofungal explorations conducted in several Sal (Shorea robusta)-dominated tropical forests in West Bengal and Jharkhand, India, unveiled a noteworthy and previously unknown member of Amanita sect. Vaginatae, here proposed as Amanita indovaginata. This newly discovered species is substantiated by both morphological characteristics and sequence data from three genes (ITS, LSU, and tef 1-α). A comprehensive morphological description, complemented by illustrations, is provided to enhance the understanding of this novel species.
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., SKÁLA E. (2007): Boletus marekii, a new species with truncate spores from the Boletus chrysenteron group. [Boletus marekii spec. nov., Boletus subgen. Xerocomus, Boletaceae, Czech Republic] Czech Mycology 59(1): 11-24 (published: 28th June, 2007)
abstract
Boletus marekii, a new species which was found in northwestern Bohemia (Czech Republic), is described. This species, belonging to the Boletus chrysenteron group (Boletus subgen. Xerocomus), is characterised mainly by its xerocomoid appearance, red-coloured, soon coarsely rimose-areolate pileus and smooth, truncate spores. Characters distinguishing Boletus marekii from other species of this group, e.g. Boletus armeniacus, Boletus rubellus, Boletus porosporus, Boletus fennicus, Boletus ripariellus and Boletus declivitatum, are discussed. A new combination, Boletus fennicus, is 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.
KUBIČKA J. (1960): Fungi trebonenses II. Česká Mykologie 14(3): 164-176 (published: 20th July, 1960)
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