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Ascomycete.org - Volume 6 & 7
Cette section propose la liste des articles du volume courant, avec le résumé anglais. Pour télécharger ces articles, il faut être membre d'Ascomycete.org, sauf pour les articles proposés en Open Access Open Access


>> Fascicule 1 & 2 sont maintenant disponibles dans la rubrique Archives (voir en bas de cette page).

Vol. 6 - Fascicule 3 - Juillet 2014 (en ligne 01/07/2014)

puce Species diversity of Genea (Ascomycota, Pezizales) in Europe PDF
  Alvarado P., Cabero J., Moreno G., Bratek Z., Van Vooren N., Kaounas V., Konstantinidis G., Agnello C., Merényi Z., Smith M.E. 41-51
Summary: Here we revisit the species diversity within the genus Genea in Europe. Nine new species are proposed: Genea brunneocarpa, G. compressa, G. dentata, G. fageticola, G. oxygala, G. pinicola, G. pseudobalsleyi, G. pseudoverrucosa, and G. tuberculata to accommodate new collections that do not match any previously described taxa. The new species are described with accurate morphological and ecological data. Genea lobulata is also proposed as a new combination to elevate the previously recognized variety, Genea sphaerica f. lobulata, to the species level. Useful macroscopic images and spore drawings of all ten new taxa are included to help discriminate them from closely related species.
puce Revue bibliographique : Ascomycete Fungi of North America  Open Access PDF
  Van Vooren N. 52
puce Two new species of Hypoxylon (Xylariaceae) from French Central Pyrenees occurring on Fagus sylvatica PDF
  Fournier J. 53-60
Summary: In the course of an extensive survey of Xylariaceae in the French Central Pyrenees over the last fifteen years two undescribed species of Hypoxylon were recently discovered, both on Fagus sylvatica. Based on the combination of remarkable ecological and morphological characters that does not match known taxa, both species are recognized as new to science. Hypoxylon cazenavei is distinctive in having brown vinaceous effused-pulvinate stromata turning fuscous, with tubular to lanceolate perithecia and yellow brown KOH-extractable pigments. Hypoxylon invadens is diagnosed on its occurrence on aborted primordia of H. fragiforme, its fulvous stromata soon turning shiny black with strongly exposed perithecial contours, slightly carbonaceous subsurface and yellow brown KOH-extractable pigments.
puce Découverte de Lazuardia lobata (Pezizales) sur l’île de Mayotte PDF
  Van Vooren N., Pélissier M. 61-63
Summary: Lazuardia lobata is an uncommon discomycete, known from tropical or subtropical areas, rarely cited in literature. A late discovery of this species on the Island of Mayotte provides an opportunity to propose a full description, along with microscopic drawings and colored illustrations. A brief history of this taxon is provided and its systematics is also discussed.

Vol. 6 - Fascicule 4 - Octobre 2014 (en ligne 17/10/2014)

puce Hypoxylon flavocremeum sp. nov. (Xylariaceae), a new species from Mayotte (France Outre-Mer), with notes on some other Hypoxylon spp. collected in this island PDF
  Fournier J., Pélissier M., Lechat C. 65-71
Summary: During a survey of mycobiota in the island of Mayotte situated in the Comores archipelago, a remarkable Hypoxylon with unusual off-white to pale yellowish stromata was collected by one of us (MP). Besides its striking colour it is characterized by small orbicular effused-pulvinate stromata (< 6 mm diam), with conspicuous perithecial contours, papillate ostioles and subsurface with yellow waxy granules yielding orange brown pigments in 10% KOH. Upon microscopical observation, its asci appear devoid of an apical apparatus, thus not reacting with iodine, and its ascospores have a transversely striated perispore dehiscent in 10% KOH. This combination of characters is compared with the Hypoxylon spp. appearing morphologically the most closely related and this comparative study is summarized in a table. As this Hypoxylon features a set of characters deviating from known species, it is described as new, as H. flavocremeum. A culture derived from single spore isolation was obtained and described. The ex-type culture was deposited at the CBS Fungal Biodiversity Center (CBS, Utrecht, the Netherlands). All attempts to obtain the asexual state on various media remained unsuccessful. The few other species of Hypoxylon collected during this survey are listed and briefly commented upon. The rarely recorded H. lividipigmentum is illustrated in colour.
puce Novel collections of Zeus olympius and Cosmospora ganymede (Ascomycota) from Bulgaria and Greece PDF
  Stoykov D.Y., Assyov B., Alexov R., Grazdilov K. 73-80
Summary: First Bulgarian records of Zeus olympius and Cosmospora ganymede, two unusual ascomycetes, described and so far known only from a single locality in Greece, are reported. Zeus olympius is related to Bosnian pine (Pinus heldreichii) and Cosmospora ganymede is associated with dead ascomata of the former. Newly collected specimens of both species from the locus classicus on the Mt Olympus, and of Z. olympius from Mt Pindus were also examined. Description of the Bulgarian and Greek materials is provided, including data from in vivo study, supplemented with illustrations of macroscopic and microscopic features, including the first colour photographs of C. ganymede. Germination of ascospores of Z. olympius was observed for the first time. The new collections significantly extend the geographic area of those apparently endemic ascomycetes. We also provide the first record of Z. olympius on artificially planted P. heldreichii outside its natural range.
puce Une station marseillaise de Tricharina striispora (Pezizales) PDF
  Ivaldi P., Fouchier F. 81-86
Summary: The authors observed for more than three years a site of the infrequent species Tricharina striispora. They describe and illustrate this taxon and give a synthesis of the ecology of T. striispora at this site.
puce Discinella meuriesii, an orthographic mistake for Discinella menziesii overlooked since 1917 PDF
  Quijada L., Valade F., Baral H.-O., Beltrán-Tejera E. 87-88
Summary: The name Discinella "meuriesii" is an incorrect spelling of Discinella menziesii. This misspelling has early been rectified, but was commonly overlooked or misunderstood by databases.
puce Type-revision of Lachnea velenovskyi, a new species in the genus Spooneromyces (Pezizales) PDF
  Van Vooren N. 89-92
Summary: The revision of the holotype of Lachnea velenovskyi confirmed that its microscopic features correspond to those of the genus Spooneromyces, i.e. spores ornamentation, type of hairs and excipulum structure. Thus the new combination Spooneromyces velenovskyi is proposed. Comparison with some other species belonging to this genus revealed that Spooneromyces microsporus is conspecific with S. velenovskyi and considered as a posterior synonym.

Vol. 6 - Fascicule 5 - Décembre 2014 (en ligne 18/12/2014)

puce “The story so far...” An Interim Bibliography of Hans-Otto Baral for the Years 1981-2014  Open Access PDF
  Bemmann M. 95-98
puce Cistella helvetica Baral (Hyaloscyphaceae), une espèce rare récoltée pour la première fois en France PDF
  Capoen B. 99-101
Summary: Cistella helvetica, a rare species of the Hyaloscyphaceae on ferns is described and illustrated after a collection from Britanny (France). This collection seems to be the first one from France. A summary of the history of the genera Cistella Quél. is given along with a few notes about other species growing on the same substrate.
puce Errata  Open Access PDF
puce About Lasiosphaeria s. l. (3). Lizonia sphagni Cooke collected in Europe PDF
  Declercq B. 103-104
Summary: Recent collections of a lasiosphaeriaceous species on Sphagnum showed to be conspecific with Lizonia sphagni Cooke for which the new combination Hilberina sphagni (Cooke) Declercq was recently made.
puce Une nouvelle espèce coprophile, Cheilymenia laevispora sp. nov. (Pezizales, Pyronemataceae) PDF
  Dougoud R. 105-108
Summary: Cheilymenia laevispora sp. nov. is described and illustrated as a new coprophilous species collected in alpine zone. The distinct cellular structures composing the layers of the flesh and the smooth spores, confirmed by SEM pictures, place this species in the section Villosae J. Moravec. The new series Brevipilae is proposed to take into account the peculiar nature of the hairs.
puce Contribution à la connaissance de Unguiculariopsis ravenelii subsp. hamata (Chenant.) W.Y. Zhuang PDF
  Hairaud M. 109-112
Summary: An illustrated description of the tiny helotialean Unguiculariopsis ravenelii subsp. hamata (Chenant.) W.Y. Zhuang, is proposed after a new living collection in Center West of France, not far from its discovery by J.-E. Chenantais almost one century ago. A short nomenclatural history of the taxon is given and the species distribution is initiated.
puce Micropeziza curvatispora sp. nov., M. fenniae sp. nov. and M. zottoi sp. nov. (Helotiales) – three new species of the genus Micropeziza from Western Siberia, Finland, Germany and Belgium PDF
  Lindemann U., Helleman S., Filippova N., Krieglsteiner L., Pennanen M. 113-124
Summary: Three Micropeziza species, Micropeziza fenniae, M. curvatispora and M. zottoi, collected in Western Siberia, Finland, Germany and Belgium are described as new to science. The similarities and differences from the known Micropeziza species are discussed. A key to the accepted species of Micropeziza is provided. M. zottoi is dedicated to the German mycologist Hans-Otto Baral who celebrated his 60th birthday in 2014.
puce The genus Polycephalomyces (Hypocreales) in the frame of monitoring Veternica cave (Croatia) with a new segregate genus Perennicordyceps PDF
  Matocec N., Kušan I., Ozimec R. 125-133
Summary: During the regular biospeleological monitoring in the Veternica cave (Mt. Medvednica, Croatia), particular synnematous entomogenous fungus parasitizing on an imago of the subtroglophilic fly Heteromyza sp. have been found. Specimens found in the dark zone of the cave were sampled, microclimate data were recorded and photo documentation performed. The fungus was identified as Polycephalomyces ramosus. Detailed description, based on living material, supplemented with drawings and photographs is given. Microscopic study includes morphological, histo- and cyto-chemical data in order to improve future diagnostics on generic and species level. The new genus Perennicordyceps is described to accommodate four species of Polycephalomyces with superficial perithecia and hirsutella-like or acremonium-like anamorphs. A key to the species of Perennicordyceps gen. nov. and Polycephalomyces is provided. Remarks on life history and ecology on both genera are discussed.
puce Un hôte du sureau yèble (Sambucus ebulus) : Trichopezizella rubroguttata comb. nov. (Helotiales) PDF
  Moyne G. 135-137
Summary: Description and illustration of Trichopezizella rubroguttata comb. nov., a species of Helotiales that seems common on dead stems of Sambucus ebulus.
puce Geoglossaceae de France : Trichoglossum octopartitum Mains, récolté en France PDF
  Priou J.-P., Dechaume J.-P. 138-142
Summary: Description and illustration of Trichoglossum octopartitum Mains (1940), reported as new to France and compared with other Trichoglossum species having seven-septate ascospores. A key to Trichoglossum species known in France is given.
puce Is Psilocistella quercina (Velen.) Svrcek a good taxon? PDF
  Quijada L., Huhtinen S., Hairaud M., Beltrán-Tejera E. 143-146
Summary: Since Psilocistella quercina was described in 1977, it is considered a doubtful taxon, and therefore not currently accepted. A bibliographic revision, together with recent studies on collections from France and the Canary Islands (Spain) are used to provide evidence about its relevance. A provisional key to the genus is also given.
puce Sclerotinia spermophila Noble – ein Labor-Insasse auf Abwegen PDF
  Richter T., Vega M. 147-150
Summary: Sclerotinia spermophila Noble only known from cultures obtained from seeds of White Clover, Trifolium repens L., is reported from collections in natural habitat growing on seeds of Rabbit-Foot-Clover, Trifolium arvense L.
puce A rare desiccation-tolerant species with single-spored asci: Mellitiosporium propolidoides (Rhytismatales) PDF
  Senn-Irlet B. 151-153
Summary: Descriptions and illustrations are given from Mellitiosporium propolidoides (Rhytismatales, Leotiomycetes) outstanding with single-spored asci, based on three recent collections from the subalpine zone of France and Switzerland.
puce Typification of Hymenoscyphus sulphuratus (Ascomycota, Helotiales) PDF
  Van Vooren N. 154-157
Summary: Hymenoscyphus sulphuratus is an uncommon species growing on conifer litter, but is typically found on Picea abies needles. As with many other historically described species, this name lacks a clearly defined type. The purpose of this note is to provide a type which covers all the features that agree with the protologue and our modern interpretation of this name.

Vol. 7 - Fascicule 1 - Février 2015 (en ligne 12/02/2015)

puce Varicosporella, a new aquatic genus in the Nectriaceae from France PDF
  Lechat C., Fournier J. 1-8
Summary: Varicosporella aquatica gen. and sp. nov. is described and illustrated based on six collections on submerged wood in South of France. A fusarium-like asexual morph was obtained in culture and sequenced. The genus is placed in the Nectriaceae based on its asexual morph and phylogenetic comparison of ITS and LSU sequences with species in 22 genera of Hypocreales including 16 genera in the Nectriaceae. It is primarily characterized by obpyriform, greyish yellow to pale orange nonstromatic ascomata, short-ribbed ascospores and freshwater habitat.
puce Three distinctive neotropical species of Hypoxylon (Xylariaceae) with purple KOH-extractable pigments, including two new taxa H. cypraeisporum sp. nov. and H. sclerophaeum var. parvisporum var. nov. PDF
  Fournier J., Lechat C. 9-21
Summary: Three species of Hypoxylon collected in the French West Indies that release violaceous to purple KOH-extractable pigments are described and compared with their known relatives. Two of them exhibit a combination of morphological characters that supports their status of new taxa as H. cypraeisporum and H. sclerophaeum var. parvisporum. The former is diagnosed by black rosellinioid stromata and ascospores with conspicuously pitted epispore and the latter by its ascospores significantly smaller than in the typical variety. Two ancient herbarium specimens of H. sclerophaeum have been studied for comparison and are illustrated. The third species dealt with, occurring on bamboo, appeared conspecific with H. rugulosporum, a species known from Papua New Guinea, based on examination of the isotype and reinterpretation of some of its morphological characters. Hypoxylon rugulosporum is recorded here for the first time from the Neotropics. An updated dichotomous key to the Hypoxylon spp. with purple KOH-extractable pigments is provided.
puce Preliminary phylogenetic and morphological studies in the Plectania melastoma lineage (Ascomycota, Pezizales) PDF
  Carbone M., Loizides M., Alvarado P. 23-29
Summary: Phylogenetic studies conducted on one collection from Greece and two from Cyprus, the latter morphologically matching Plectania zugazae and Plectania melastoma respectively, reveal that the delimitation of these two species is still far from clear. The authors choose to keep the two species separate on phylogenetic and microscopic basis only. The presence of P. zugazae is confirmed for the first time for Cyprus and Greece and only for the second time worldwide. Useful macro- and microscopic pictures are provided and a tentative key of the accepted Plectania species is proposed.
puce Typification of Peziza sicula  Open Access PDF
  Agnello C., Baglivo A., Carbone M. 30
Summary: The authors revise their typification of Peziza sicula made in a previous article, in order to avoid conflict with ICN rules.
puce Kirschsteiniothelia thujina (Peck) D. Hawksw. (Kirschsteiniotheliaceae), reported from Europe for the first time PDF
  Zhang Y., Fournier J. 31-37
Summary: A dothideomycete repeatedly collected on stubs of dead branches of Abies alba in the French Pyrénées and once on the Spanish side of the Pyrénées was identified as Kirschsteiniothelia thujina based on morphological and ecological characters. This fungus was known from North America and had not been reported from Europe. A sample was isolated in artificial culture and three loci of genes sequenced. A phylogenetic analysis based on the results confirmed its placement in Kirschsteiniothelia and revealed its affinities with other taxa known in that genus. The peculiar ecology of K. thujina is briefly commented.
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Tous les éléments | 15 mars 2014 - Par Konstantinidis G., Kaounas V.
Two hypogeous Ascomycetes recently observed in Greece are presented: Hydnotrya tulasnei and Mattirolomyces terfezioides. Descriptions based on specimens found are given, accompanied by macroscopic and microscopic images
Tous les éléments | 15 mars 2014 - Par Van Vooren N.
Tous les éléments | 16 mai 2014 - Par Fournier J., Román A., Balda J., Rubio E.
Xylaria violaceorosea is described as a new species based on the combination of distinctive macroscopic and microscopic characters. It is a lignicolous Xylaria with stromata roughly recalling those of X. hypoxylon but with a purplish pink outer layer that yields olivaceous yellow pigments in 10% KOH and relatively large ascospores provided with gelatinous secondary appendages
Tous les éléments | 15 mars 2014 - Par Rubio E., Delpont M.
The authors describe and illustrate a rare coprophilous fungus, Cheilymenia catenipila J. Moravec, collected for the first time in Spain and France
Tous les éléments | 15 mars 2014 - Par Carbone M., Agnello C., Alvarado P.
New phylogenetic studies focused on the genus Pseudoplectania confirm the independence of the already known species Pseudoplectania nigrella, P. melaena, and P. ericae, although there seems to exist a species complex around both P. nigrella and P. melaena. The status of Peziza spongiosa is discussed. In addition, molecular results support the independence of P. sphagnophila in the sense of European authors. However, the original diagnosis of the latter does not fit the modern concept of this species, and so P. episphagnum is proposed as a substitute for the species growing in bogs on Sphagnum spp. Finally, the new species P. affinis and P. tasmanica are proposed to accomodate material from New Zealand and Tasmania, respectively. A review on the remaining known species of the genus is also discussed
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