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Ascomycete.org - Volume 9
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 - Janvier 2017 (en ligne 07/01/2017)

puce Barssia peyronelii comb. nov. (Pezizales) for the old Mattirolo’s species Stephensia peyronelii PDF
  Agnello C., Kaounas V. 1-5
Abstract: Thanks to the study of the original material of Stephensia peyronelii Mattir., recently discovered in the herbarium of the university of Turin, we propose a new combination in the genus Barssia. The work is accompanied by micrographs, an old plate by O. Mattirolo and an updated key to the genus Barssia.
puce Hydropisphaera foliicola, a new species from Martinique PDF
  Lechat C., Fournier J. 6-8
Abstract: A detailed description of Hydropisphaera foliicola sp. nov. is presented, based on a collection on dead leaf of Pouteria pallida (C.F. Gaertn.) Baehni (Sapotaceae) in Martinique (French West Indies). The fungus was cultured and sequenced; no asexual morph was obtained in culture but fertile ascomata occurred after five weeks. This species resembles H. erubescens (Roberge ex Desm.) Rossman & Samuels but differs from it in having significantly smaller ascospores.
puce Combinaisons nouvelles de Pezizales PDF
  Van Vooren N. 9-10
Abstract: Proposal of new combinations of some pezizalean species. Galactinia hypoleuca is combined in the genus Peziza Fr. s. lato, and illustrated microscopically after the revision of the holotype; Pachyphloeus oleiferus is combined in the genus Pachyphlodes Zobel; Pulvinula ovalispora is combined in the genus Boubovia Svrcek; and Aleuria latispora is combined in the genus Melastiza Boud. Comments are provided for each species..
puce Four new species of Ijuhya (Bionectriaceae) from Belgium, metropolitan France and French Guiana PDF
  Lechat C., Fournier J. 11-18
Abstract: Four new species of Ijuhya are described and illustrated based on material collected in Belgium, metropolitan France and French Guiana. The four new species described herein were sequenced and one of them was successfully cultured. They are placed in the Bionectriaceae based on ascomata not changing colour in 3% KOH or lactic acid, acremonium-like asexual morph and phylogenetic affinities of LSU sequences with five morphologically related genera of the Bionectriaceae. Their placement in Ijuhya is based on morphological and phylogenetic comparison with the most similar genera including Lasionectria and Lasionectriella. An updated dichotomous key to Ijuhya is presented.

Fascicule 2 - Février 2017 (en ligne 25/02/2017)

puce Typification of Gyromitra perlata, type-species of the subgenus Discina (Discinaceae) PDF
  Van Vooren N. 19-22
Abstract: Peziza perlata Fr., basionym of Gyromitra perlata, is the type-species of the subgenus Discina. As many old names attached to supposed well-known species, its type is not clearly defined. Based on a sample from Fries’ herbarium, we propose the neotypification of this name to fix the main morphological and microscopic characters of the species
puce First report of a lichenicolous species of Hypomyces (Hypocreaceae), H. peltigericola sp. nov. PDF
  Lechat C., Gardiennet A., Fournier J. 23-26
Abstract: Hypomyces peltigericola sp. nov. is described and illustrated based on material collected in France on thalli of the lichen Peltigera canina. In culture the ascospores yielded a cladobotryum-like asexual morph that was sequenced. The placement of this new species in the aurofusarin-group of the genus Hypomyces is based on the combination of morphological characters of sexual and asexual morphs as well as the comparison of its ITS rDNA sequence with those of this group available in GenBank.
puce Apports à la connaissance de Peziza lilacinoalba, une espèce subalpine PDF
  Dougoud R. 27-31
Abstract: The macroscopic and microscopic characters of Peziza lilacinoalba, an uncommon subalpine species, only known from the original collections, are described and illustrated from fresh material found in Switzerland
puce Additional reports on coprophilous Lasiosphaeriaceae from tropical climates PDF
  Doveri F. 32-58
Abstract: Following a recent work on coprophilous Cercophora species from tropical climates, this paper deals with more species of Lasiosphaeriaceae from the same climates. Coprophilous Lasiosphaeriaceae are divided into groups according to their regularity of growing on dung. Three additional Cercophora species and two Podospora, some of which are vey rare or even never recorded since the original finding, are described in detail and compared with similar taxa. A key is provided to the complex of Cercophora species with a palisade or tufts of swollen and agglutinated neck hairs.

Fascicule 3 - Avril 2017 (en ligne 30/04/2017)

puce Hydropisphaera heliconiae, a new species from Martinique (French West Indies) PDF
  Lechat C., Fournier J. 59-62
Abstract: A detailed description of Hydropisphaera heliconiae sp. nov. is presented based on two collections on dead leaves of Heliconia caribea (Heliconiaceae) in Martinique (FWI). The fungus was cultured and sequenced and its placement in the genus Hydropisphaera confirmed by analysis of LSU sequences. This species primarily differs from all known species in having ascomata nearly black when mature and deeply cupulate when dry. The new combination Ijuhya boothii is proposed for a taxon examined during this study that was formerly placed in Hydropisphaera.
puce Beiträge zur Erforschung der Pilzflora Äthiopiens. Operculate Discomyceten, Teil 2: Tricharina aethiopica sp. nov. PDF
  Lindemann U. 63-66
Abstract: Tricharina aethiopica is described as a new species. The morphological features are compared with the hitherto known species of Tricharina.
puce The genus Biscogniauxia (Xylariaceae) in Guadeloupe and Martinique (French West Indies) PDF
  Fournier J., Lechat C., Courtecuisse R. 67-99
Abstract: This survey deals with the Biscogniauxia taxa collected in the French West Indies in the course of an ongoing inventorial work on the mycobiota of these islands initiated in 2003. Based on the evaluation and comparison of their morphological characters, fourteen taxa are described, illustrated and discussed, including four new taxa, viz.: B. breviappendiculata, B. martinicensis, B. nigropapillata and B. sinuosa var. macrospora and a collection of uncertain taxonomic position tentatively regarded as related to B. uniapiculata. The nine known taxa that we recorded include B. capnodes, B. capnodes var. limoniispora, B. capnodes var. theissenii, B. citriformis, B. citriformis var. macrospora, B. grenadensis, B. philippinensis, B. uniapiculata and B. viscosicentra. Only three of the taxa that we report here were already known from the Caribbean, viz.: B. grenadensis, B. uniapiculata and B. cf. uniapiculata, and all are new to the French West Indies, except the latter which was collected in Guadeloupe. A dichotomous identification key and a synoptical table of ascospores are presented as well.
puce Revue bibliographique: Les Terfess et les Truffes du Maroc  Open Access PDF
  Van Vooren N. 100

Fascicule 4 - Juillet 2017 (en ligne 19/07/2017)

puce Emendation of the genus Tricharina (Pezizales) based on phylogenetic, morphological and ecological data PDF
  Van Vooren N., Lindemann U., Healy R. 101-123
Abstract: Tricharina is one of the most difficult genera of Pezizales because it is hard to distinguish morphologically among species. To provide a more robust taxonomy, new investigations on the genus were conducted, both morphologically and phylogenetically. This study focuses on the four key species of the genus: T. ascophanoides, T. gilva, T. ochroleuca and T. praecox. The type material of these species was reviewed. In the literature, T. gilva is considered to be close or even identical to T. ochroleuca. The phylogenetic analysis shows that all recent collections identified as T. ochroleuca appear to be T. gilva. Furthermore, the morphological study of the type material of T. ochroleuca leads to the conclusion that the name is a nomen dubium. The presence of several endophytes sequences in the Tricharina-core clade suggests that this genus has an endophytic lifecycle. The confusion between T. gilva and T. praecox, both considered as pyrophilous species, is now resolved thanks to phylogenetic analyses and new data based on vital taxonomy. In contrast to T. gilva, which can occasionally grow on burnt places, T. praecox is a strictly pyrophilous taxon and belongs genetically to a different clade than T. gilva. In agreement with art. 59 of ICN, the anamorphic genus Ascorhizoctonia is used to accommodate the species belonging to the “T. praecox clade”. T. ascophanoides, an extra-limital species, is excluded from the genus Tricharina and combined in the genus Cupulina based on the phylogenetic results. The genetic exploration of some other tricharinoid species, i.e. Leucoscypha semi-immersa and L. patavina, confirms they do not belong to the genus Leucoscypha in its original sense, and deserve their own genus. The name Sepultariella is validated to accommodate the latter.
puce Further interesting lichens and lichenicolous fungi from Fuerteventura, Canary Islands (Spain), with three new species and notes on Mixtoconidium PDF
  Van den Boom P.P.G., Etayo J. 124-134
Abstract: Fifty-two taxa of lichens and lichenicolous fungi from Fuerteventura (Canary Islands) are presented as a result of recent fieldwork. For each taxon, information about habitat and substrata is given. Forty-seven species are newly recorded from the island, including the rare lichenicolous fungi Arthonia follmanniana and Stigmidium epistigmellum, the latter previously only known from America, and three new species described here: Lecania euphorbiae, Staurothele alboterrestris and Stigmidium seirophorae. The new combination Variospora fuerteventurae is proposed for Caloplaca fuerteventurae. In a revision of the genus Mixtoconidium the new combinations Mixtoconidium insidens and M. nashii are proposed.
puce Pseudotricharina lanigera (Pezizales), a new species from the Patagonian region of Argentina PDF
  Healy R., Pfister D.H., Mujic A.B., Torres D., Nouhra E., Furci G., Smith M.E. 135-138
Abstract: A species of Pseudotricharina, similar in sequence and morphology to the type species P. intermedia, is described from a soil bank in a Nothofagus forest of the Andes Mountains of Argentina. This is only the second species of Pseudotricharina to be described and the first known from the Southern Hemisphere.
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Tous les éléments | 15 mars 2016 - Par Roth J.-J., Van Vooren N.
Gibellula pulchra is a parasitic fungus on Arachnids, rather common and widely distributed worldwide. This notice provides a full description based on several collections, accompanied by illustrations in colors and SEM photographs of the main microscopic characters. A brief history of hyphomycetes growing on spiders is proposed. The systematics of this species is discussed, especially through the article 59 of ICN (Melbourne)
Tous les éléments | 15 mars 2016 - Par Rubio E., Marcote J.M.C., Costa J.M.
Xylaria crozonensis on twigs of Quercus robur and Fagus sylvatica is reported for the first time from Spain. A description and illustrations of both macroscopic and microscopic characters are provided
Tous les éléments | 15 mars 2016 - Par Fournier J., Gardiennet A., Lechat C.
A distinctive aquatic fungus belonging to the Sordariomycetes was recently collected twice on submerged wood in a peat bog and in a small brook in Morvan region (France). Based on its more or less immersed perithecial and ostiolate ascomata, cylindrical unitunicate asci with a massive inamyloid apical apparatus and brown, two-celled fusiform ascospores with small bipolar cap-like appendages, this fungus was identified as Submersisphaeria aquatica K.D. Hyde. This species, so far known only from Australia and USA, is reported from France and Europe for the first time. Herein, we provide a detailed morphological description of this fungus and compare it with material from the USA. The presence of minute germ pores beneath the bipolar appendages of the ascospores is assessed for the first time, in American and European material as well. Repeated attempts to grow the ascospores in culture on artificial media were unsuccessful
Tous les éléments | 15 mars 2016 - Par Lechat C., Fournier J.
Lasionectriella rubioi gen. and sp. nov. and L. herbicola sp. nov. are described and illustrated based on collections from France and Spain. The asexual morph of L. rubioi was obtained in culture and cultures of both species were sequenced. The genus is placed in the Bionectriaceae based on ascomata not changing colour in 3% KOH or lactic acid, acremonium-like asexual morph and phylogenetic comparison of LSU sequences with species in 13 genera of the Bionectriaceae. Lasionectriella is primarily characterized by subglobose, pale yellow, pale orange to dark brownish orange, non-stromatic ascomata with a conical apex and ascomatal surface covered by thick-walled hyphae proliferating from base and agglutinating to form a fringe around the upper margin of ascomata. It is morphologically and phylogenetically compared with the most similar genera Ijuhya, Lasionectria and Ochronectria
Tous les éléments | 15 mars 2016 - Par Lechat C., Fournier J.
A detailed description of Hydropisphaera znieffensis sp. nov. is presented, based on a collection on dead leaf of Cyathea arborea (L.) Sm. in Martinique (French West Indies). The asexual morph has been obtained in culture and sequenced. This species has coarsely verrucose ascospores, an unusual feature in the genus Hydropisphaera
Tous les éléments | 16 févr. 2016 - Par Fournier J., Lechat C.
This survey deals with Annulohypoxylon spp. collected in two French Guiana locations during two weeks in June 2012. Two species, A. leptascum var. macrosporum and A. stygium, previously reported, were collected. In addition, we collected A. moriforme s.l., A. purpureopigmentum (first collected in Brazil), and three new species, A. fulvum, A. nouraguense and A. subnitens. All species are described and illustrated; a dichotomous key is provided. In conclusion, some problems in description of morphological features of Annulohypoxylon, especially the ostiolar discs, are discussed
Tous les éléments | 16 févr. 2016 - Par Lechat C., Fournier J., Richter T.
Protocreopsis caricicola sp. nov. is described and illustrated based on a collection on Carex acutiformis in Germany. The placement of P. caricicola in Protocreopsis is supported by morphological characters of both sexual and asexual morphs and analysis of LSU sequences. This species has smooth ascospores as does Protocreopsis korfii Lechat & J. Fourn. But differs from it in having significantly smaller ascospores and a different ecology
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