Pleosporales - CBS - KNAW

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Fungal Diversity Fig. 41 Katumotoa bambusicola (from HHUF 28663, holotype). a Ascomata scattered on the host surface. b Asci in pseudoparaphyses. c Hyaline ascospore with long terminal appendages. d Clavate ascus with a short pedicel. Scale bars: a=0.5 mm. b–d=20 μm unraveling appendages are the most striking features of this species and readily distinguish it from other pleosporalean taxa. Both Katumotoa bambusicola and Ophiosphaerella sasicola are associated with bambusicolous hosts, which might indicate that host spectrum in this case, has greater phylogenetic significance than some morphological characters (Zhang et al. 2009a). Keissleriella Höhn., Sber. Akad. Wiss. Wien, Math.-naturw. Kl., Abt. 1 128: 582 (1919). (Lentitheciaceae) Generic description Habitat terrestrial or freshwater, saprobic. Ascomata smallto medium-sized, immersed, erumpent to nearly superficial, globose, papillate, ostiolate. Papilla covered by dark setae or small blackened cells. Peridium thick, composed of cells of pseudoparenchymatous and inner layer composed of pale cells. Hamathecium of dense, long pseudoparaphyses, rarely septate, anastomosing and branching. Asci 4- or 8- spored, bitunicate, fissitunicate, cylindro-clavate, with a
Fungal Diversity furcate pedicel and a small ocular chamber. Ascospores hyaline to pale brown, ellipsoid to fusoid, 1-septate, constricted at the septum (Barr 1990a). Anamorphs reported for genus: Dendrophoma (Bose 1961). Literature: von Arx and Müller 1975; Bose 1961; Barr 1990a; Dennis 1978; Eriksson 1967a; von Höhnel 1919; Luttrell 1973; Munk 1957; Zhang et al. 2009a. Type species Keissleriella aesculi (Höhn.) Höhn., Sber. Akad. Wiss. Wien, Math.-naturw. Kl., Abt. 1 128: 582 (1919). (Fig. 42) ≡ Pyrenochaeta aesculi Höhn., Ber. dt. bot. Ges. 35: 249 (1917). Ascomata ca. 250μm high×450 μm diam., gregarious, immersed to erumpent, globose or subglobose, with a small black papilla, ca. 75μm high and 110 μm broad, with short black external setae (Fig. 42a). Peridium ca. 25–40 μm wide laterally, up to 70 μm near the apex, thinner at the base, comprising two types of cells which merge in the middle; outer cells composed of small heavily pigmented thick-walled cells, cells ca. 4 μm diam., cell wall up to 4 μm thick, and thick near the apex and thinner laterally and absent in the immersed part of the ascoma, inner cells less pigmented, comprising lightly pigmented to hyaline cells, 5–7 μm thick (Fig. 42a). Hamathecium of dense, long pseudoparaphyses, 0.8–1.2 μm broad, rarely septate, anastomosing and branching, thicker near the base, ca. 2μm, constricted near the septum (Fig. 42b). Asci 80–120×6–11 μm (x ¼ 101 8:5mm, n=10), 4- or 8-spored, bitunicate, fissitunicate, cylindro-clavate, with a furcate pedicel which is up to 20–40 μm long, with a small ocular chamber (Fig. 42e and f). Ascospores 13–18×4–5.5 μm (x ¼ 14:5 4:8mm, n=10), obliquely uniseriate and partially overlapping, fusoid with narrowly rounded ends, hyaline, 1-septate, constricted at the septum, smooth (Fig. 42c and d). Anamorph: none reported. Material examined: AUSTRIA, Brentenmaistal in the Viennese forest, Aesculus hippocastanum L., 1916, Höhnel (FH, holotype of Otthiella aesculi). (Note: only two slides; setae cannot be seen from the slides but could be seen from the drawings on the cover). Notes Morphology Keissleriella is characterized by ascomata with setae in and over the papilla, asci are cylindrical and ascospores are hyaline, 1-septate. Based on the morphological characters, K. aesculi was regarded as conspecific with K. sambucina; as an earlier epithet, K. sambusina typifies the genus (see comments by Barr 1990a). Munk (1957) placed Trichometasphaeria and Keissleriella in Massarinaceae, and distinguished them by their substrates (Trichometasphaeria occurs on herbaceous plants and Keissleriella on woody substrates). Bose (1961) combined Trichometasphaeria under Keissleriella, which was followed by some workers (von Arx and Müller 1975; Dennis 1978; Eriksson 1967a; Luttrell 1973). Barr (1990a), however, maintained these as distinct genera based on the differences of peridium structure and pseudoparaphyses. Phylogenetic study The phylogeny of Keissleriella is poorly studied. Limited phylogenetic information indicates that K. cladophila forms a robust clade with other species of Lentitheciaceae (Zhang et al. 2009a). Concluding remarks The presence of black setae on the surface of papilla is a striking character of Keissleriella, but phylogenetic significance of setae is undetermined yet. Lentithecium K.D. Hyde, J. Fourn. & Yin. Zhang, Fungal Divers. 38: 234 (2009). (Lentitheciaceae) = Tingoldiago K. Hirayama & Kaz. Tanaka, Mycologia 102: 740 (2010) syn. nov. Generic description Habitat freshwater, saprobic. Ascomata small, scattered or gregarious, immersed, slightly erumpent, depressed spherical to lenticular, ostiolate, papillate or epapillate. Peridium thin. Hamathecium of cellular pseudoparaphyses. Asci 8-ascospored, bitunicate, fissitunicate, clavate, short-stipitate. Ascospores broadly fusoid with broadly rounded ends, 1-septate, constricted, hyaline, usually with sheath. Anamorphs reported for genus: none. Literature: Shearer et al. 2009; Zhang et al. 2009a, b. Type species Lentithecium fluviatile (Aptroot & Van Ryck.) K.D. Hyde, J. Fourn. & Yin. Zhang, Fungal Divers. 38: 234 (2009). (Fig. 43) ≡ Massarina fluviatilis Aptroot & Van Ryck., Nova Hedwigia 73: 162 (2001). Ascomata 230–260 μm high×280–325 μm diam., scattered or gregarious, immersed, slightly erumpent, subglobose to depressed spherical, under a small black pseudostroma originating from the apical part of the peridium, apex slightly papillate, ostiole rounded, 60–70 μm diam. (Fig. 43a and b). Peridium 15–20 μm thick at sides and at base, comprising 4–5 layers of angular cells more thick-walled outwards, 50–55 μm
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Fungal Diversity DOI 10.1007/s13225
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Fungal Diversity Table 1 Major circ
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Fungal Diversity
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Fungal Diversity biocontrol agent o
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Fungal Diversity substrates and man
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Fungal Diversity 2. To investigate
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Fungal Diversity Table 3 (continued
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Fungal Diversity Fig. 2 Aigialus gr
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Fungal Diversity Fig. 3 Amniculicol
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Fungal Diversity Literature: Berkel
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Fungal Diversity Ascorhombispora L.
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Fungal Diversity Fig. 8 Astrosphaer
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Fungal Diversity Fig. 9 Asymmetrico
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Fungal Diversity Type species Ostro
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Fungal Diversity Fig. 76 Platysporo
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Fungal Diversity Fig. 77 1 Pleomass
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Fungal Diversity Fig. 78 Pleophragm
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Fungal Diversity papillate, ostiola
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Fungal Diversity Williams 1963; Mal
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Fungal Diversity Generic descriptio
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Fungal Diversity composed of one ce
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Fungal Diversity Fig. 84 Saccharico
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Fungal Diversity Fig. 94 Westerdyke
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Fungal Diversity Fig. 95 Wettsteini
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Fungal Diversity Fig. 96 Wilmia bra
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Fungal Diversity Current name: Astr
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Fungal Diversity Fig. 100 Sporormie
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Fungal Diversity Fig. 102 Kriegerie
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Fungal Diversity Phylogenetic study
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Fungal Diversity Fig. 105 Muroia ni
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Fungal Diversity Eremodothis Arx, K
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Fungal Diversity Type species: Macr
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Fungal Diversity ascospores of Plat
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Fungal Diversity monoceras Alcorn n
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Fungal Diversity 1987b). Based on a
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Fungal Diversity Dennis RWG (1968)
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Fungal Diversity Kirk PM, Cannon PF
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Fungal Diversity Saccardo PA (1880)
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Fungal Diversity Winter G (1887) As
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Pleosporales - CBS - KNAW

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