µm long, two-celled. Stalk cell of perithecium short, perithecium (110-)(-140) x(45-)(-60) µm, elliptical or long ovate, constricted and dark<strong>en</strong>ed subapically.Studied material [Coleoptera, Carabidae, Harpalinae]:Anthracus consputus (Duftschmid):Tilburg TWM, Kaaistoep-west, 128.8-394.6. Licht, 6.viii.08.Haelewaters 2a, 2b.Specificity and geographical distribution:Mainly on species of the g<strong>en</strong>us Acupalpus Latreille, also on Agonum Bonelli,Atranus Leconte, Badister Schell<strong>en</strong>berg, Baudia Ragusa and Dromius Bonelli inEurope (France, Italy, Germany, Poland), Asia (Korea) and North America(USA) (MAJEWSKI, 1994). Type on Atranus pubesc<strong>en</strong>s Dejean, USA.Remarks:Rhachomyces lasiophorus is new for the mycoflora of The Netherlands.Discussion:Anthracus consputus in this study is host for Rhachomyces lasiophorus. R.lasiophorus only parasitizes Acupalpus species; it is the only repres<strong>en</strong>tative ofthe g<strong>en</strong>us Rhachomyces parasitising Acupalpus species (MAJEWSKI, 1994).Anthracus is a subg<strong>en</strong>us of Acupalpus (pers. comm. PAUL VAN WIELINK, 2010).Concerning to DE KESEL (1997), thalli of Rhachomyces lasiophorus occur onmesothorax, metathorax and legs. In this study, specim<strong>en</strong>s of R. lasiophorushave be<strong>en</strong> collected from the elytra. The hosts of R. lasiophorus are typical forbanks of stagnant water, swamps and marshes (DESENDER et al., 1995), acommon habitat at De Kaaistoep.4.8. STICHOMYCES CONOSOMATIS THAXT.Figure XXII: Thallus of Stichomyces conosomatis (from Sepedophilus nigrip<strong>en</strong>nis, specim<strong>en</strong> 5b, thallus1). Scale bar = 50 µm. Picture by Danny Haelewaters (2010).Thallus (195-)263-295(-315) µm long, brown-yellowish, body of the peritheciumand app<strong>en</strong>dage dark<strong>en</strong>ed. Receptacle 67-95(-120) µm long, cell I about twotimes longer than broad, all superposed cells of the receptacle-app<strong>en</strong>dageaxis isodiametric or slightly elongated; cell II giving rise to one or twoperithecia, cell III to perithecia or – seldom – to antheridial branchlets, or sterile.App<strong>en</strong>dage axis consisting of 1-4 usually elongated cells, gradually smallertowards the <strong>en</strong>d of the axis; the distal cell continuing into antheridial or sterileprimary branch, the other axis cells separating corner cells; antheridialP a g e | 95
anches (15-)34-38(-40) µm long, terminated by 2-5 antheridia which mayproliferate into short branchlets. Perithecium one per thallus, less frequ<strong>en</strong>tly 2-4on both sides of the receptacle; stalk cell as well as secondary stalk cell andone of the basal cells elongated, perithecium (75-)126-130(-152) x (30-)40-43(-45) µm, sl<strong>en</strong>der, with slightly differ<strong>en</strong>tiated neck tapering to narrow, distal partof stalk cell and secondary stalk cell hyaline, rounded apex. Ascospores twocelled,(32-)(-45) x (2-)(-3) µm.Studied material [Coleoptera, Staphylinidae, Tachyporinae]:Sepedophilus nigrip<strong>en</strong>nis (Steph<strong>en</strong>s):Tilburg, TW Kaaistoep. Potval, 13-27.1.2001.Haelewaters 5a, 5b.Specificity and geographical distribution:On species of the g<strong>en</strong>us Sepedophilus Gistel in USA, Algeria, Great Britain,Belgium, Poland, Spain and Japan.Remarks:Stichomyces conosomatis is new for the mycoflora of The Netherlands.Discussion:Most thalli of Stichomyces conosomatis have only one perithecium and none,one or two perithecial primordia. Both TAVARES (1985) and MAJEWSKI (1994)describe the developm<strong>en</strong>t of secondary perithecia upon the cell above cell II.Since cell III basically never bears perithecia (cfr. Part I, 1.3.2. THE RECEPTACLE),this cell should be considered as cell II‟. The thalli studied in this research haveonly perithecia(l primordial) upon cell II, consist<strong>en</strong>t with the Belgian material(DE KESEL, 1997).4.9. STIGMATOMYCES MAJEWSKII H.L. DAINAT, MANIER &BALAZUCFigure XXIII: Thallus of Stigmatomyces majewskii (from Drosophila subobscura, specim<strong>en</strong> 10a, thallus1). Scale bar = 100 µm. Picture by Danny Haelewaters (2010).P a g e | 96Thallus (320-)250-258(-372) µm long, hyaline to brownish-yellow. Receptacle133-148 µm long, sl<strong>en</strong>der, with cell II always shorter than the cell I; cell I long,narrower at the base, remarkably divided in two: granular protoplasmaticmass in the upper part, optically empty hyaline mass in the lower part.App<strong>en</strong>dage (41-)51-76 µm long, its axis consisting of four cells, of which the first
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LABOULBENIALESEXPLORING AND TESTING
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PART IVPRELIMINARY CHECKLIST OF LAB
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SAMENVATTINGINLEIDINGLaboulbeniales
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PART IGENERAL INTRODUCTIONTHESIS OU
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1.3.3. THE PERITHECI UMAscospores o
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The identity of appendages, togethe
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Figure IV: Position of Laboulbeniom
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Substrate is the intermediate facto
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CAVARA (1899, ref. in BENJAMIN, 197
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1. INTRODUCTION1.1. DIFFICULTIES FO
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2. MATERIALS & METHODS2.1. FUNGUS,
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coll1133 Laboulbenia collae IV 608l
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Cladosporium (Ascomycota, Dothideom
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