Pleosporales - CBS - KNAW

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Fungal Diversity <strong>Pleosporales</strong>, but definite conclusions could only be obtained by further molecular phylogenetic analysis. In this study, we assign it to Dothideomycetes incertae cedis. Zeuctomorpha Sivan., P.M. Kirk & Govindu, Bitunicate Ascomycetes and their Anamorphs: 572 (1984). (Venturiaceae) Generic description Habitat terrestrial, hemibiotrophic. Ascomata small, gregarious, superficial, globose to slightly flattened, ostiolate, covered with setae. Peridium thin, composed of heavily pigmented pseudoparenchymatous cells of textura angularis. Hamathecium of rare, septate, branching and anastomosing pseudoparaphyses. Asci 8-spored, with a short thick pedicel, bitunicate, fissitunicate, broadly clavate to obclavate. Ascospores ellipsoid, dark brown, 1-septate, asymmetrical, deeply constricted at the septum. Anamorphs reported for genus: Acroconidiellina (Sivanesan 1984). Literature: Sivanesan 1984. Type species Zeuctomorpha arecae Sivan., P.M. Kirk & Govindu, in Sivanesan, Bitunicate Ascomycetes and their Anamorphs: 572 (1984). (Fig. 104) Ascomata 175–300 μm diam., gregarious, superficial, globose to slightly flattened, collapsed at the apex when dry, ostiolate, covered with numerous long setae (Fig. 104a). Peridium up to 25 μm wide, composed of heavily pigmented pseudoparenchymatous cells of textura angularis, to7μm diam. Hamathecium of rare, 2–5 μm broad, septate, branching and anastomosing pseudoparaphyses. Asci 83–185×29–40(−50) μm (x ¼ 134 35:3mm, n= 10), 8-spored, bitunicate, fissitunicate, broadly clavate to obclavate, with a short thick pedicel, up to 40 μm long, apically rounded, with a small ocular chamber (to 4 μm wide×7 μm high) (Fig. 104b, c and d). Ascospores 35–43× 12.5–18 μm (x ¼ 36:5 15:4mm, n=10), 2–4 seriate, ellipsoid, dark brown, 1-septate, deeply constricted at the septum, usually slightly asymmetric, smooth (Fig. 104e,f,g,handi). Anamorph: Acroconidiellina arecae (Sivanesan 1984). Material examined: INDIA, Shimogee, on Areca catechu L. leaf, 1 Nov. 1979, H.C. Govindu (IMI 246067, holotype). Notes Morphology Zeuctomorpha was formally established by Sivanesan (1984) based on its superficial setose ascomata, clavate asci, ellipsoid and 1-septate ascospores, and presence of pseudoparaphyses, and was monotypified by Z. arecae. Zeuctomorpha arecae is widely distributed in tropical regions of East South Asia exclusively on the leaves of Areca catechu (Sivanesan 1984). Phylogenetic study None. Concluding remarks This taxon is unusual amongst the Pleosporaceae as it has hairy superficial ascomata, few pseudoparaphyses, broadly clavate to obclavate asci and 1-septate pigmented ascospores. All of these morphological characters are most comparable with species of Acantharia, which might be closely related to Venturiaceae (Zhang et al. data unpublished). Muroia I. Hino & Katum., J. Jap. Bot. 33: 79 (1958). (Ascomycota) Generic description Habitat terrestrial, saprobic or parasitic. Ascostromata erumpent through the host surface in linear rows parallel to the host fibers. Ascomata small- to medium-sized, semiimmersed to erumpent, subglobose to rectangular, black, coriaceous, cells of ascostromata pseudoparenchymatous, cells of peridium composed of pigmented cells of textura angularis. Hamathecium of rare, pseudoparaphyses. Asci bitunicate, clavate to cylindro-clavate. Ascospores oblong to elongated oblong, hyaline, 1-celled, usually slightly curved. Anamorphs reported for genus: none. Literature: Hino and Katumoto 1958. Type species Muroia nipponica I. Hino & Katum., J. Jap. Bot. 33: 79 (1958). (Fig. 105) Ascostroma 1–6 mm long, 360–470 μm broad, linear parallel to the host fibers with several linearly arranged ascomata (Fig. 105a). Ascomata 250–400 μm diam., semi-immersed in substrate to erumpent, subglobose to rectangular with a furrow-shaped ostiole, black, coriaceous, cells of ascostromata pseudoparenchymatous. Peridium composed of pigmented cells of textura angularis. Hamathecium of rare, 3–4.5 μm broad pseudoparaphyses. Asci (120-)150–190×30–45 μm, 8- spored, bitunicate, fissitunicate dehiscence not observed, clavate to cylindro-clavate, with a short, thin, knob-like pedicel, lacking an ocular chamber (Fig. 105b). Ascospores 43–50×13–18 μm (x ¼ 46:6 15:2mm, n=10), biseriate, ob-
Fungal Diversity Fig. 104 Zeuctomorpha arecae (from IMI 246067, holotype). a Gregarious ascomata on host surface. Note the numerous setae on the surface of ascomata. b Asci with ocular chamber and short peduncles. c, d Ascus with ocular chamber and knob-like pedicel. e–i One septate ascospores which are slightly asymmetrical. Scale bars: a=0.5 mm, b–i=20 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
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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
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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
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Fungal Diversity Fig. 21 Chaetomast
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Fungal Diversity
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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 ascospores were br
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Fungal Diversity furcate pedicel an
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Fungal Diversity Anamorph: none rep
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Fungal Diversity
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Fungal Diversity Material examined:
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Fungal Diversity Fig. 46 Lewia scro
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Fungal Diversity Fig. 47 Lichenopyr
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Fungal Diversity Loculohypoxylon M.
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Fungal Diversity cells small heavil
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Fungal Diversity upper place, septa
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Fungal Diversity
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Fungal Diversity (CBS 627.86) was i
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Fungal Diversity Fig. 54 Mamillisph
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Fungal Diversity Fig. 55 Massarina
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Fungal Diversity phaeria as a synon
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Fungal Diversity 5-8 μm diam., ind
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Fungal Diversity cell wall
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Fungal Diversity Fig. 60 Mixtura sa
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Fungal Diversity Fig. 61 Montagnula
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Fungal Diversity spored, bitunicate
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Fungal Diversity Fig. 64 Murispora
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Fungal Diversity Type species Neoph
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Fungal Diversity brown, 8-septate,
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Fungal Diversity Fig. 68 Ohleria mo
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Fungal Diversity Fig. 69 Ohleriella
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Fungal Diversity Fig. 70 Ophiobolus
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Fungal Diversity Type species Ostro
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Fungal Diversity
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Page 175 and 176: Fungal Diversity Fig. 94 Westerdyke
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Page 181 and 182: Fungal Diversity Current name: Astr
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Page 185 and 186: Fungal Diversity Fig. 100 Sporormie
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Page 197 and 198: Fungal Diversity pseudoparenchymato
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Page 201 and 202: Fungal Diversity Type species: Macr
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Page 209 and 210: Fungal Diversity Table 4 (continued
Page 211 and 212: Fungal Diversity 1987b). Based on a
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Page 215 and 216: Fungal Diversity Dennis RWG (1968)
Page 217 and 218: Fungal Diversity Kirk PM, Cannon PF
Page 219 and 220: Fungal Diversity Saccardo PA (1880)
Page 221: Fungal Diversity Winter G (1887) As
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Pleosporales - CBS - KNAW

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