7 results on '"Voitk, A."'
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2. The Pseudoomphalina kalchbrenneri complex in North America
- Author
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Voitk, Andrus, Saar, Irja, Lebeuf, Renee, and Kennedy, Peter
- Subjects
Phylogeny ,Biological sciences - Abstract
Pseudoomphalina kalchbrenneri is a Eurasian species. In North America the Pso. kalchbrenneri complex is represented by Pseudoomphalina anticostica sp. nov. and Pso. compressipes in the east and Pso. intermedia in the west. Pseudoomphalina farinacea and Pso. felleoides are later synonyms for Pso. compressipes. The somewhat similar Pseudolaccaria pachyphylla occupies a temperate band through Eurasia, confirmed by sequencing in both eastern and western North America. It differs from species of the Pso. kalchbrenneri complex by smaller size, finely granular pileus, non-decurrent gills, and lack of hymenial cystidia. All species of the Pso. kalchbrenneri complex are uncommon, and macroscopically similar. Pseudoomphalina kalchbrenneri and Pso. intermedia can be identified by their distribution (Europe and western North America, respectively) and lack of cystidia. The cystidiate eastern North American Pso. anticostica and Pso. compressipes can be differentiated by the smaller spores of the latter. Pseudoomphalina cokeri is the most ancestral species on the Pseudoomphalina lineage, while Clitocybe thujana and Agaricus apertus (Clitocybe/Clitocybula aperta) fall outside Pseudoomphalina and Pseudolaccaria. We add 21 new sequences to GenBank, including six types (Agaricus compressipes, Clitocybe felleoides, C. farinacea, C. intermedia, C. thujana, Agaricus apertus), and one new species (Pso. anticostica). Key words: ITS sequences, holotype barcoding, molecular phylogeny, Tricholoma. Resume : Pseudoomphalina kalchbrenneri est une espece eurasienne. En Amerique du Nord, le complexe Pso. kalchbrenneri est represente par Pseudoomphalina anticostica sp. nov. et Pso. compressipes dans l'est et Pso. intermedia dans l'ouest. Pseudoomphalina farinacea et Pso. felleoides sont des synonymes posterieurs de Pso. compressipes. Pseudolaccaria pachyphylla, assez similaire, occupe une bande temperee a travers l'Eurasie, ce que confirme le sequencage realise dans l'est et l'ouest de l'Amerique du Nord. Il differe des especes du complexe Pso. kalchbrenneri par sa taille plus petite, un chapeau finement granuleux, des lames non decurrentes et l'absence de cystides dans l'hymenium. Toutes les especes du complexe Pso. kalchbrenneri sont rares et similaires a l'echelle macroscopique. Pseudoomphalina kalchbrenneri et Pso. intermedia peuvent etre identifies par leur distribution (Europe et ouest de l'Amerique du Nord, respectivement) et l'absence de cystides. Pseudoomphalina anticostica et Pso. compressipes, especes cystidiees de l'est de l'Amerique du Nord, peuvent etre differencies par les spores plus petites du dernier. Pseudoomphalina cokeri est l'espece la plus ancestrale de la lignee des Pseudoomphalina, alors que Clitocybe thujana et Agaricus apertus (Clitocybe/Clitocybula aperta) se situent a l'exterieur des Pseudoomphalina et Pseudolaccaria. Les auteurs ajoutent 21 nouvelles sequences a GenBank, dont six types (Agaricus compressipes, Clitocybe felleoides, C. farinacea, C. intermedia, C. thujana, Agaricus apertus) et une nouvelle espece (Pso. anticostica). [Traduit par la Redaction] Mots-cles : sequences de l'ITS, codage a barre d'holotypes, phylogenie moleculaire, Tricholoma., Introduction Traditionally, the genus Tricholoma Fr. was the repository for a wide variety of fungi that could not be placed elsewhere, which eventually necessitated dissection of diverse unrelated groups. Singer [...]
- Published
- 2020
- Full Text
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3. Lactarius splendens, a second species with white latex in Lactarius section Deliciosi
- Author
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Nuytinck, Jorinde, Verbeken, Annemieke, Saar, Irja, Lambert, Herman, Berube, Jean, and Voitk, Andrus
- Subjects
Basidiomycota -- Identification and classification -- Physiological aspects ,Biological sciences - Abstract
Abstract: An uncommon, small, orange-capped Lactarius Pers. with white latex was confirmed, using molecular studies of the type specimens, to be Lactarius splendens Hesler & A.H. Sm. Phylogenetic analysis revealed [...]
- Published
- 2017
- Full Text
- View/download PDF
4. The golden chanterelles of Newfoundland and Labrador: a new species, a new record for North America, and a lost species rediscovered
- Author
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Thorn, R. Greg, Kim, Jee In, Lebeuf, Renee, and Voitk, Andrus
- Subjects
Newfoundland and Labrador -- Natural history ,Basidiomycota -- Discovery and exploration ,Biological sciences - Abstract
Abstract: Three species of golden chanterelles were found in Newfoundland and Labrador and were compared with other Cantharellus species by macromorphology, microscopy, and multilocus phylogenetic studies. The commonest species is [...]
- Published
- 2017
- Full Text
- View/download PDF
5. The Pseudoomphalina kalchbrenneri complex in North America
- Author
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Andrus Voitk, Irja Saar, Renée Lebeuf, and Peter G. Kennedy
- Subjects
0106 biological sciences ,0301 basic medicine ,Ecology ,biology ,Tricholoma ,Plant Science ,Pseudoomphalina ,biology.organism_classification ,010603 evolutionary biology ,01 natural sciences ,Pseudoomphalina kalchbrenneri ,03 medical and health sciences ,030104 developmental biology ,Molecular phylogenetics ,Botany ,Ecology, Evolution, Behavior and Systematics - Abstract
Pseudoomphalina kalchbrenneri is a Eurasian species. In North America the Pso. kalchbrenneri complex is represented by Pseudoomphalina anticostica sp. nov. and Pso. compressipes in the east and Pso. intermedia in the west. Pseudoomphalina farinacea and Pso. felleoides are later synonyms for Pso. compressipes. The somewhat similar Pseudolaccaria pachyphylla occupies a temperate band through Eurasia, confirmed by sequencing in both eastern and western North America. It differs from species of the Pso. kalchbrenneri complex by smaller size, finely granular pileus, non-decurrent gills, and lack of hymenial cystidia. All species of the Pso. kalchbrenneri complex are uncommon, and macroscopically similar. Pseudoomphalina kalchbrenneri and Pso. intermedia can be identified by their distribution (Europe and western North America, respectively) and lack of cystidia. The cystidiate eastern North American Pso. anticostica and Pso. compressipes can be differentiated by the smaller spores of the latter. Pseudoomphalina cokeri is the most ancestral species on the Pseudoomphalina lineage, while Clitocybe thujana and Agaricus apertus (Clitocybe/Clitocybula aperta) fall outside Pseudoomphalina and Pseudolaccaria. We add 21 new sequences to GenBank, including six types (Agaricus compressipes, Clitocybe felleoides, C. farinacea, C. intermedia, C. thujana, Agaricus apertus), and one new species (Pso. anticostica).
- Published
- 2020
6. Lactarius splendens, a second species with white latex in Lactarius section Deliciosi
- Author
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Annemieke Verbeken, Herman Lambert, Jorinde Nuytinck, Irja Saar, Andrus Voitk, and Jean A. Bérubé
- Subjects
0301 basic medicine ,Ecology ,biology ,fungi ,Lactarius rubrilacteus ,Plant Science ,030108 mycology & parasitology ,biology.organism_classification ,White (mutation) ,03 medical and health sciences ,030104 developmental biology ,Lactarius ,Botany ,Lactarius porninsis ,Ecology, Evolution, Behavior and Systematics - Abstract
An uncommon, small, orange-capped Lactarius Pers. with white latex was confirmed, using molecular studies of the type specimens, to be Lactarius splendens Hesler & A.H. Sm. Phylogenetic analysis revealed that the species falls within Lactarius section Deliciosi (Fr.) Redeuilh, Verbeken & Walleyn., very closely related to L. rubrilacteus Hesler & A.H. Sm. and L. porninsis Rolland. Hitherto L. porninsis was the only white-latex species known in the otherwise orange-latex section Deliciosi; both are associated with Larix Mill.
- Published
- 2017
7. The golden chanterelles of Newfoundland and Labrador: a new species, a new record for North America, and a lost species rediscovered
- Author
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Renée Lebeuf, Andrus Voitk, Jee In Kim, and R. Greg Thorn
- Subjects
0301 basic medicine ,03 medical and health sciences ,Ecology ,biology ,Phylogenetics ,Botany ,Phylogenetic study ,Plant Science ,030108 mycology & parasitology ,biology.organism_classification ,Ecology, Evolution, Behavior and Systematics ,Cantharellus - Abstract
Three species of golden chanterelles were found in Newfoundland and Labrador and were compared with other Cantharellus species by macromorphology, microscopy, and multilocus phylogenetic studies. The commonest species is a member of the C. cibarius group, usually found with Picea, and is differentiated from European C. cibarius by its pinkish-orange rather than yellow hymenium, and from both C. cibarius and C. roseocanus of the Pacific Northwest by its ITS and TEF1 sequences. We describe it as a new species, Cantharellus enelensis; published sequences extend its range to Michigan and Illinois. An uncommon species with reduced, merulioid hymenophore, found growing only with Betula, has rDNA and TEF1 sequences nearly identical to C. amethysteus, but only occasionally shows the amethyst scales on its cap characterizing that species in Europe. Ours is the first report of this species from North America. A third species was recognized by its sequences as C. camphoratus, but our collections, found with Abies balsamea, lack the odour of camphor for which this species was named and have longer and more slender spores than in the original description. This species has not been reported since its description from a single collection in Nova Scotia. All three species are edible.
- Published
- 2017
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