Pleosporales - CBS - KNAW

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Fungal Diversity Concluding remarks The genera Asteromassaria, Pleomassaria and Splanchnonema of Pleomassariaceae areconsideredtobeclosely related and difficult to separate (Barr 1982b; Crivelli 1983). They all have ascomata which are immersed in bark and are visible as slightly raised pustules with small ostioles, but may eventually become erumpent (e.g. Asteromassaria macrospora). Pseudoparaphyses are cellular, asci are bitunicate, while ascospores vary from 1-septate and pale brown (e.g. Asteromassaria macrospora) tomuriform(e.g.Pleomassaria siparia) and may be symmetrical (e.g. Asteromassaria macrospora) or highly asymmetrical (e.g. Splanchnonema pustulatum). The peridium ranges from thick-walled textura angularis (e.g. Asteromassaria macrospora) to thin-walled compressed cells (e.g. Splanchnonema pustulatum) and medium textura prismatica (e.g. Pleomassaria siparia). Anamorphs also vary distinctly, Prosthemium in Pleomassaria siparia, Scolicosporium in Asteromassaria macrospora but no anamorphic stage reported for Splanchnonema pustulatum. Furthermore, Asteromassaria pulchra clusters in Morosphaeriaceae in this study, thus here we tentatively assign Asteromassaria in Morosphaeriaceae (Plate 1). There seems to be considerable confusion in this family, especially when Pleomassaria siparia forms a robust phylogenetic clade with Melanomma pulvis-pyrius (Melannomataceae). Thus in this study, Pleomassariaceae is restated as a separate family from Melannomataceae. Therefore, fresh collections of the types of these genera are needed for molecular analysis and to establish which characters are important for classification. Pleophragmia Fuckel, Jb. nassau. Ver. Naturk. 23–24: 243 (1870). (Sporormiaceae) Generic description Habitat terrestrial, saprobic (coprophilous). Ascomata smallto medium-sized, gregarious, immersed to erumpent, globose to subglobose, black, coriaceous; apex with a short papilla, or sometimes forming an ostiolar pore. Peridium thin, composed of several layers of thin-walled cells of textura angularis. Hamathecium of dense, delicate pseudoparaphyses. Asci 8-spored, bitunicate, fissitunicate, clavate to cylindro-clavate, with a relatively long pedicel and an ocular chamber. Ascospores muriform, narrow oblong to cylindrical with rounded ends, dark brown, constricted at each septum. Anamorphs reported for genus: none. Literature: von Arx and Müller 1975; Cain 1934. Type species Pleophragmia leporum Fuckel, Jb. nassau. Ver. Naturk. 23–24 (1870) [1869–70]. (Fig. 78) Ascomata 330–480 μm high×320–430 μm diam., gregarious, immersed to slightly erumpent, globose to subglobose, black; apex with a short papilla, sometimes forming a ostiolar pore (Fig. 78a). Peridium 25–35 μm thick at the sides, composed of one cell type of lightly pigmented thin-walled cells of textura angularis, cells 6– 10 μm diam., cell wall 1.5–2 μm thick (Fig. 78b). Hamathecium of numerous, long pseudoparaphyses, 1– 2 μm broad, anastomosing not observed. Asci 160–250× 22.5–27.5 μm (x ¼ 203:6 25mm, n=10), 8-spored, bitunicate, fissitunicate, clavate to cylindro-clavate, with a 20– 50 μm long pedicel and an ocular chamber (to 5 μm wide× 2 μm high) (Fig. 78e and f). Ascospores 42–50×8–10 μm (x ¼ 46 10mm, n=10), biseriate to uniseriate and partially overlapping, narrowly oblong to cylindrical with rounded ends, dark brown, often slightly curved, with 9 transverse septa with two crossing longitudinal septa in the centre, constricted at each septum, smooth-walled (Fig. 78c, d, g and h). Anamorph: none reported. Material examined: GERMANY, between Königstein and Glashütten, on the same dung with Delitschia minuta. s.d. (G, Fungi rhenani n2272, type). Notes Morphology Pleophragmia was formally established by Fuckel (1870) and monotypified by Pleophragmia leporum. The most comparable genus to Pleophragmia is Sporormia, as ascospores of both have no germ slits and the inner layer of wall is considerably thinner than the outer layer (Barr 1990a, b). But the muriform ascospores of Pleophragmia can be readily distinguished from the phragmosporous ascospores of Sporormia. Currently, only four species are accommodated under this genus (http://www.mycobank. org, 28-02-2009). Phylogenetic study None. Concluding remarks The presence of both transverse and crossing longitudinal septa is the most striking character of Pleophragmia, although the phylogenetic significance of this character is unclear. Pleoseptum A.W. Ramaley & M.E. Barr, Mycotaxon 54: 76 (1995). (Phaeosphaeriaceae) Generic description Habitat terrestrial, saprobic? Ascomata medium-sized, scattered, or in small groups, immersed, globose to conoid,
Fungal Diversity Fig. 77 1 Pleomassaria siparia (from BR, type). a Ascomata on the host surface (after removing the cortices). b Section of a partial peridium. c, d Asci with short pedicels. e–g Ascospores with thin sheath. Scale bars: a=0.5 mm, b–d=50 μm, e–g= 20 μm. 2 Prosthemium betulinum (from BR, type). h–j Conidia with arms. Scale bars: h–j=20 μm black, papillate, ostiolate. Peridium 1-layered. Hamathecium of dense, long cellular pseudoparaphyses, septate, branching. Asci 8-spored, bitunicate, fissitunicate, cylindrical to cylindro-clavate, with furcate pedicel. Ascospores obliquely uniseriate and partially overlapping, muriform, ellipsoid, ovoid to fusoid, yellowish to dark brown. Anamorphs reported for genus: Camarosporium (Ramaley and Barr 1995).
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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 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 Anamorph: none rep
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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 Material examined:
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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 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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