Pleosporales - CBS - KNAW

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Fungal Diversity Fig. 10 Barria piceae (from NY 92003, isotype). a Ascoma on the host surface. Note the wide opening ostiole. b Section of the partial peridium with two types of cells. c, d Asci with ocular chambers and short pedicels. e, f Ellipsoid ascospores which are turning brown with thin sheath around them. Scale bars: a=0.5 mm, b=50 μm, c, d=20 μm, e, f=10 μm Ascomata 240–370 μm high×200–320 μm diam., solitary, scattered, immersed, globose, subglobose, coriaceous, apex with or without papilla and with a pore-like ostiole (Fig. 10a). Peridium 20–35 μm thick, comprising two cell types, the outer cells comprising 3–4 layers of brown pseudoparenchymatous cells, cells 4–5 μm diam., cell wall 2–3 μm thick, inner cells comprising 3–4 layers of pale brown compressed cells, cells 2×16 μm diam., cell wall 0.5–1.5 μm thick (Fig. 10b). Hamathecium of dense, long cellular pseudoparaphyses, 2–3 μm broad, septate. Asci 135–200(−220)×14–20 μm (x ¼ 156 16:6mm, n= 10), 8-spored, bitunicate, fissitunicate, cylindrical to clavate, with a short, furcate pedicel, up to 22 μm long, with a large ocular chamber (ca. 4μm wide×3 μm high) (Fig. 10c and d). Ascospores 19–21.5×10–12 μm (x ¼ 20:4 11mm, n=10), uniseriate to partially overlapping, ellipsoid, hyaline or greenish with numerous small guttules at first and olive green to smoky brown at maturity, 1-septate, strongly constricted at the septum, foveolate, surrounded with sheath (Fig. 10e and f). Anamorph: none reported. Material examined: CHINA, Xinjiang Province, Uygur, Urumqi, Tianshan Mountain, on needles of Picea schrenkiana, 1 Jul. 1992, Z.Q. Yuan (NY 92003, isotype).
Fungal Diversity Notes Morphology Barria was established by Yuan (1994) as a monotypic genus represented by B. piceae according to its “two-celled, pigmented ascospores, pseudoparenchymatous peridium and narrowly cellular pseudoparaphyses” thus differing in its combination of characters from all of the morphologically related dothideomycetous genera, such as Didymosphaeria, Didymopleella or Stegasphaeria. The taxon was considered to belong in Phaeosphaeriaceae. Ascomata and colour or shape of ascospores, however, readily distinguish it from other 1-septate Phaeosphaeriaceae genera, i.e. Didymella, Lautitia and Metameris (Yuan 1994). Barria piceae causes blight of spruce needles. Phylogenetic study None. Concluding remarks The status of Barria with its unusual verrucose ascospores and thick gel coating is uncertain. In many ways it resembles Belizeana, with its cylindrical asci, 1-septate, ellipsoid ascospores with sheath and verruculose surface (Kohlmeyer and Volkmann-Kohlmeyer 1987). However, the latter is a marine genus while Barria causes leaf blight of terrestrial Picea (Yuan 1994). The placement in Phaeosphaeriaceae seems logical based on the parasitic life style, thin and simple peridium, wide cellular pseudoparaphyses and brown ascospores. However, molecular data are needed to confirm this. Belizeana Kohlm. & Volkm.-Kohlm., Bot. Mar. 30: 195 (1987). (<strong>Pleosporales</strong>, genera incertae sedis) Generic description Habitat marine, saprobic. Ascomata solitary, scattered, or in small groups, medium-sized, immersed to semiimmersed, subglobose to broadly ampulliform, black, ostiolate, carbonaceous. Peridium thin, comprising several layers of brown thin-walled cells of textura angularis. Hamathecium of dense, filliform pseudoparaphyses, rarely branched. Asci 8-spored, bitunicate, fissitunicate, broadly cylindrical to clavate, with a short pedicel and an ocular chamber. Ascospores uniseriate, broadly ellipsoidal, hyaline, turn pale brown when senescent, 1-septate, constricted at the septum, thick-walled, 2-layered, mature spores with tuberculate ornamentation between the two layers. Anamorphs reported for genus: Phoma-like (Kohlmeyer and Volkmann-Kohlmeyer 1987). Literature: Kohlmeyer and Volkmann-Kohlmeyer 1987. Type species Belizeana tuberculata Kohlm. & Volkm.-Kohlm., Bot. Mar. 30: 196 (1987). (Fig. 11) Ascomata 170–300 μm high×160–290 μm diam., solitary, scattered, or in small groups of 2–3, immersed to semiimmersed, subglobose to broadly ampulliform, carbonaceous, black, pale brown on the sides, ostiolate, epapillate or shortly papillate, ostiolar canal filled with a tissue of hyaline cells (Fig. 11a). Peridium 25–35 μm wide, comprising several layers thin-walled cells of textura angularis, which are hyaline inwardly, near the base composed of a hyaline hyphal mass producing asci, up to 20 μm thick (Fig. 11b, c and e). Hamathecium of dense, ca. 2 μm broad, filliform pseudoparaphyses, rarely branched, embedded in mucilage (Fig. 11g). Asci 145–170×20–30 μm (x ¼ 163 25mm, n= 10), 8-spored, bitunicate, fissitunicate, broadly cylindrical to clavate with a short pedicel, thick-walled, with a small ocular chamber (Fig. 11d, f and h). Ascospores 21–26 × 13–18 μm (x ¼ 22 15mm, n = 10), uniseriate, broadly ellipsoidal, hyaline, turn pale brown when senescent, 1-septate, constricted at the septum, thick-walled, 2-layered, mature spores with tuberculate ornamentation between the two layers (Fig. 11i and j). Anamorph: Phoma-like (Kohlmeyer and Volkmann- Kohlmeyer 1987). Material examined: BELIZE, Twin Cays, on Laguncularia sp., 7 Apr. 1983, leg. & det. J. Kohlmeyer (Herb. J. Kohlmeyer No. 4398, holotype); AUSTRALIA, Towra Point, New South Wales, trunk of eroded tree with oysters and shipworms, intertidal zone, Botany Bay, 23 Aug. 1981 (Herb. J. Kohlmeyer No. 4209, paratype). Notes Morphology Belizeana was formally established to accommodate B. tuberculata, an obligate marine fungus, which is characterized by verrucose ascospores (Kohlmeyer and Volkmann- Kohlmeyer 1987). Belizeana tuberculata canbeassignedto Pleosporaceae (<strong>Pleosporales</strong>) according to Luttrell’s (1973) treatment and keys of von Arx and Müller (1975), but cannot resolve a proper family based on Barr (1979a, 1983). The unique morphology together with obligate marine habitat makes B. tuberculata readily distinguishable from all other taxa of Pleosporaceae. Phylogenetic study None. Concluding remarks The ascospores of Belizeana tuberculata are most comparable with those of Acrocordiopsis patilii, but the superficial
Page 1 and 2: Fungal Diversity DOI 10.1007/s13225
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Page 73 and 74: Fungal Diversity Fig. 33 Hadrospora
Page 75 and 76: Fungal Diversity Fig. 34 Halotthia
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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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Fungal Diversity (Shoemaker and Bab
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Fungal Diversity ium thin, composed
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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 and nearly black a
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Fungal Diversity dense, long trabec
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Fungal Diversity Anamorphs reported
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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 spores are actuall
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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. 104 Zeuctomor
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Fungal Diversity Fig. 105 Muroia ni
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Fungal Diversity pseudoparenchymato
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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 tomataceae, Melano
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Fungal Diversity Table 4 (continued
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Fungal Diversity 1987b). Based on a
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Fungal Diversity only do so under v
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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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