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6 results for “Helicascus”
FIGURE 2 in Helicascus alatus (Morosphaeriaceae), a new freshwater species from southwestern China
FIGURE 2. Helicascus alatus (HKAS 99554, holotype). a Material. b Ascomata on host. c Ascoma d Ascoma in vertical section. e Neck in transverse section with periphyses f Peridium. g Asci with pseudoparaphyses. h Ascus i–l Ascospores with gelatinous sheath (arrowed). Note: Figs k–l stained in Congo red reagent. Scale bars: d = 200 μm, e, g–h = 50 μm, f, i–l = 20 μm.
FIGURE 1. A in Helicascus alatus (Morosphaeriaceae), a new freshwater species from southwestern China
FIGURE 1. A maximum likelihood tree of combined LSU, ITS, SSU and TEF1-α sequences data. Bootstrap support values for maximum likelihood (ML, black) and maximum parsimony (MP, blue) greater than 75% are indicated above the nodes. Bayesian posterior probabilities (BYPP, yellow) greater than 0.95 are indicated above the nodes. Names in red indicate new species mentioned in this study and names in bold stand for type strains. Montagnula opulenta was used as outgroup.
FIGURE 3 in Helicascus gallicus sp. nov., a new freshwater pleosporalean ascomycete from France
FIGURE 3. Helicascus gallicus (BJFUCC200224). Upper (A) and reverse (B) views of colony on MEA 40 days after inoculation. Bars: 1 cm.
FIGURE 4 in Helicascus gallicus sp. nov., a new freshwater pleosporalean ascomycete from France
FIGURE 4. Maximum parsimony (MP) tree generated from sequence analysis of the combined 28S and ITS nrDNA dataset. Designated outgroup taxon is Montagnula opulenta. Maximum parsimony bootstrap support values above 60% are shown at nodes and based on 1,000 replicates. Bayesian support above 90% is shown under the branches.
FIGURE 2. Helicascus gallicus. M–T in Helicascus gallicus sp. nov., a new freshwater pleosporalean ascomycete from France
FIGURE 2. Helicascus gallicus. M–T: Paratype BJFC 200033. M, N: Mature and immature asci in Pelikan black ink showing the pedicels; O: Ascus base with coiled endoascus, in Pelikan black ink; P: Apex of an immature ascus showing the faint ocular chamber,in Pelikan black ink; Q: Hamathecium in India ink, showing cellular pseudoparaphyses embedded in mucilage; R: Two typical ascospores in water; S: Deviating ascospores with two additional septa, in water; T: Ascospore in India ink, with remnants of mucilage after being
FIGURE 1. Helicascus gallicus. A–D, G–L in Helicascus gallicus sp. nov., a new freshwater pleosporalean ascomycete from France
FIGURE 1. Helicascus gallicus. A–D, G–L: Paratype BJFC 200033; E, F: Paratype JF 02202-2. A: Blackened host surface; B: Host surface in close up showing the pseudostromata; C, D: Ostioles in close-up; E: Vertical section of a fully immersed pseudostroma; F: Vertical section of a pseudostroma mounted in chloral-lactophenol showing the multilocular arrangement of ascomata and the common ostiole surrounded by orange material; G: Vertical section of a papillate ostiole in close-up showing the ostiolar canals merging beneath surface; H, I: Vertical sections of pseudostromata showing the multilocular arrangement and the thick clypeus; J–L: Sections of periderm and clypeus mounted in chloral-lactophenol. Scale bars: A: 5 mm; B: 1 mm; E: 0.5 mm; C, D, F, G: 100 µm; H, I: 200 µm; J: 50 µm; K, L: 20 µm.
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