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8 results for “Pezizomycetes”
The genera Helvella and Dissingia (Ascomycota: Pezizomycetes) in Europe – Notes on species from Spain
<p>Phylogenetic analyses of 115 newly collected <i>Helvella</i> specimens from Spain using three genetic markers [heat shock protein 90 (<i>hsp</i>), RNA polymerase II second largest subunit (<i>rpb2</i>) and the nuclear large subunit ribosomal DNA (LSU)] confirm the assignment of the Spanish collections to one <i>Dissingia</i> and 30 <i>Helvella</i> species. The analyses were supplemented with an additional sample of 65 Spanish and extralimital <i>Helvella</i> specimens from the fungaria of Oslo (O), Trondheim (TRH), Copenhagen (C), Uppsala (UPS), Stockholm (S) and Venice (MCVE). Nine species are described as new, <i>i.e. Helvella fuscolacunosa</i>, <i>H. hispanica</i>, <i>H. iberica</i>, <i>H. inexpectata</i>, <i>H. neopallescens</i>, <i>H. phlebophoroides</i>, <i>H. poculiformis</i>, <i>H. retinervis</i>, and <i>H. terricola</i>. We present photographs of a selection of fresh specimens and provide descriptions of all species of this diverse South European Mediterranean element of the genera in Europe.</p>
The genera Helvella and Dissingia (Ascomycota: Pezizomycetes) in Europe – Notes on species from Spain
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FIGURE 2 in Geopyxis carolinae sp. nov. (Pezizomycetes, Ascomycota) from Mexico
FIGURE 2. Geopyxis carolinae (Holotype: DCGONZÁLEZSÁNCHEZ-01-ITCV). A, B. Gregarious apothecia. C. Mature apothecia. D, E. Young apothecia.
FIGURE 1 in Geopyxis carolinae sp. nov. (Pezizomycetes, Ascomycota) from Mexico
FIGURE 1. Maximum-likelihood phylogenetic tree based on combined ITS and nrLSU nucleotide sequences (Wang et al. 2016). Bootstrap values (BP) ≥ 90% from ML analysis and Bayesian posterior probabilities (BPP) ≥ 0.90 are shown on the branches. The new species Geopyxis carolinae is shown in black bold.
FIGURE 1 in A new species of Helvella (Helvellaceae, Pezizomycetes) within the H. macropus group from China
FIGURE 1. Maximum likelihood (ML) tree of Helvella and its allies within Helvellaceae inferred from a combined LSU, TEF and HSP90 dataset. Bootstrap support values for ML ≥ 80 of SH-aLRT or 95 of UFB and posterior probability for BIPP ≥ 0.95 are indicated above the nodes and separated by '-/-/-' (SH-aLRT/UFB/BIPP). Specimens of the current study are given in red. Type specimens are in bold. The letter ET after the sample stands for epitype, HT for holotype, and IET for isoepitype.
FIGURE 2. Helvella guttata. a–e in A new species of Helvella (Helvellaceae, Pezizomycetes) within the H. macropus group from China
FIGURE 2. Helvella guttata. a–e Typical mature specimens (a HKAS 67836; b HKAS 87759; c HKAS 69046; d, e HKAS 69733); f–g Receptacle surface of pileus; h Stipitipellis; i,j Asci and paraphyses; k–n Asci; o,p Ascospores. Scale bars: a–e = 1 cm; f–h = 50 μm; i–p = 20 μm.
FIGURE 3 in Geopyxis carolinae sp. nov. (Pezizomycetes, Ascomycota) from Mexico
FIGURE 3. Geopyxis carolinae (Holotype: DCGONZÁLEZSÁNCHEZ-01-ITCV). A. Longitudinal section of the apothecium. B. Ectal excipulum. C. Paraphyses. D. Asci. E. Ascospores in 5% KOH.
FIGURE 3. Helvella macropus. a in A new species of Helvella (Helvellaceae, Pezizomycetes) within the H. macropus group from China
FIGURE 3. Helvella macropus. a Typical mature specimen (HKAS 78756); b Receptacle surface of pileus; c Stipitipellis; d Asci and paraphyses; e–i Asci; j, k Ascospores. Scale bars: a = 1 cm; b, c = 50 μm; d–k = 20 μm.
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