Pleosporales - CBS - KNAW

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Fungal Diversity transverse septa, 1 longitudinal septum in each central cell, 1 oblique septum in each end cell, constricted at all septa, granulate, with a sheath 2–3 μm wide (as reported in Shoemaker and Babcock 1992) (Fig.76f, g and h). Anamorph: none reported. Material examined: GERMANY, Budenheim, Leopold Fuckel, Nassau’s Flora, on old paper (G NASSAU: 210558 (a), as Sphaeria chartarum Wallr., type). Notes Morphology Platysporoides was introduced as a subgenus of Pleospora by Wehmeyer (1961) and was typified by Pleospora chartarum. Shoemaker and Babcock (1992) raised Platysporoides to generic rank and placed it in the Pleosporaceae based on its “applanodictyospore” and “terete pored beak of the ascomata”. Currently, eleven species are included in this genus (Shoemaker and Babcock 1992). Another comparable pleosporalean family is Diademaceae, which is distinguished from Platysporoides by its ascoma opening as “an intraepidermal discoid lid” (Shoemaker and Babcock 1992). Phylogenetic study None. Concluding remarks Aigialus grandis is another pleosporalean fungus with flattened and muriform ascospores as well as papilla and ostioles, which belongs to Aigialaceae, a phylogenetically well supported marine family (Suetrong et al. 2009). Thus, it is highly likely that flattened and muriform ascospores are of little phylogenetic significance. Pleomassaria Speg., Anal. Soc. cient. argent. 9: 192 (1880). (Pleomassariaceae) Generic description Habitat terrestrial, saprobic. Ascomata medium to large, solitary, scattered, or in small groups, immersed, erumpent by a minute slit or a small conical swelling in the bark, flattened, papillate, ostiolate. Hamathecium of dense, cellular pseudoparaphyses, embedded in mucilage. Asci bitunicate, fissitunicate, broadly cylindrical to broadly cylindro-clavate, with a short, thick pedicel. Ascospores muriform, brown, constricted at the septa. Anamorphs reported for genus: Prosthemium and Shearia (Barr 1982b; Sivanesan 1984). Literature: Barr 1982b, 1990b, 1993a; Clements and Shear 1931; Eriksson 2006; Lumbsch and Huhndorf 2007; Shoemaker and LeClair 1975; Sivanesan 1984; Tanaka et al. 2005. Type species Pleomassaria siparia (Berk. & Broome) Sacc., Syll. fung. 2: 239 (1883) (Fig. 77) ≡ Sphaeria siparia Berk. & Broome, Ann. Mag. nat. Hist., Ser. 2 9: 321 (1852). Ascomata 150–410 μm high×440–740 μm diam., solitary, scattered, or in small groups, immersed, erumpent by a minute slit or a small conical swelling in the bark, depressed globose, papillalte, ostiolate (Fig. 77a). Peridium 45–60 μm wide, thicker at the apex, thinner at the base, 1-layered, composed of small pigmented thickwalled compressed cells, cells ca. 15×3μm diam., cell wall 2–3.5 μm thick, apex cells larger, base composed of small pigmented thick-walled cells of textura angularis, ca. 5μm diam. (Fig. 77b). Hamathecium of dense, cellular pseudoparaphyses, 1–2 μm broad, embedded in mucilage, anastomosing or branching not observed. Asci 180–250× 28–42 μm (x¼206:3 36:8mm, n=10), 8-spored, bitunicate, fissitunicate, broadly cylindrical to broadly cylindroclavate, with a short, thick pedicel, 15–45 μm long, with inconspicuous ocular chamber (Fig. 77c and d). Ascospores 45–58×12.5–17.5 μm (x ¼ 50:5 14:8mm, n=10), biseriate, narrowly oblong with broadly to narrowly rounded ends, brown, muriform with 5–8 transverse septa and 1–2 vertical septa in some cells, smooth to verrucose, constricted at the septa, surrounded by a mucilaginous sheath (Fig. 77e, f and g). Anamorph: Prosthemium betulinum Kunze (Sivanesan 1984). Conidia to 120 μm diam., with 3–5 arms, each arm 3–5- septate, 40–55×13–16 μm, connected to a central cell (Fig. 77h, i and j). Material examined: UK, Wiltshire, Spye Park, on branch of Betulina with Hendersonia polycystis Berk., et Br. leg. C.E. Broome, 1850? (BR, type). Notes Morphology Pleomassaria as characterized by Barr (1982b) has medium- to large-sized, immersed ascomata, cellular pseudoparaphyses, clavate to oblong asci and large, muriform ascospores (Barr 1982b; Sivanesan 1984). The muriform and somewhat asymmetrical ascospores with a submedian primary septum distinguish Pleomassaria from Asteromassaria in the family Pleomassariaceae, while in Splanchnonema ascospores have distinct bipolar asymmetry. Barr (1982b) included five North American species in the genus, while Kirk et al. (2008) listedfourspecies.
Fungal Diversity Fig. 76 Platysporoides chartarum (from G NASSAU: 210558, type). a, b Ascomata scattered among fibers. Note the central ostioles. c Asci in numerous cellular pseudoparaphyses. d, e Cylindro-clavate asci with short pedicels. f–h. Muriform ascospores. Scale bars: a, b=200 μm, c–e=20 μm, f–h=10 μm Barr (1993a) treated Pleomassaria as a synonym of Splanchnonema based on a morphological cladistic analysis, but this proposal was not followed by later workers (Eriksson 2006; Lumbsch and Huhndorf 2007; Tanaka et al. 2005). Phylogenetic study Pleomassaria siparia forms a robust phylogenetic clade with Melanomma pulvis-pyrius (generic type) (Schoch et al. 2009; Zhang et al. 2009a), which might represent a phylogenetic family (or suborder?).
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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 Notes Morphology B
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Fungal Diversity Generic descriptio
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Fungal Diversity Fig. 14 Bimuria no
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Fungal Diversity Fig. 15 Bricookea
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Fungal Diversity Fig. 16 Byssolophi
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Fungal Diversity Notes Morphology B
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Fungal Diversity the reaction of pe
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Fungal Diversity Fig. 21 Chaetomast
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Fungal Diversity Fig. 23 Cilioplea
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Fungal Diversity with one or two ve
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Fungal Diversity Moreau 1953; Munk
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Fungal Diversity Fig. 28 Dothidotth
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Fungal Diversity Fig. 29 Dubitatio
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Fungal Diversity assigned Entodesmi
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Fungal Diversity fusoid to somewhat
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Fungal Diversity Fig. 33 Hadrospora
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Fungal Diversity Fig. 34 Halotthia
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Fungal Diversity Notes Morphology H
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Fungal Diversity some effused Hypox
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Fungal Diversity Fig. 38 Isthmospor
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Fungal Diversity Fig. 39 Kalmusia e
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Fungal Diversity ascospores were br
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Fungal Diversity Fig. 105 Muroia ni
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Fungal Diversity Type species: Macr
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Fungal Diversity ascospores of Plat
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Fungal Diversity 1987b). Based on a
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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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