66 research outputs found
Phylogeny and morphology of Phaeosphaeriopsis triseptata sp. nov., and Phaeosphaeriopsis glaucopunctata
No full textThambugala, Kasun M., Camporesi, Erio, Ariyawansa, Hiran A., Phookamsak, Rungtiwa, Liu, Zuo-Yi, Hyde, Kevin D. (2014): Phylogeny and morphology of Phaeosphaeriopsis triseptata sp. nov., and Phaeosphaeriopsis glaucopunctata. Phytotaxa 176 (1): 238-250, DOI: 10.11646/phytotaxa.176.1.23, URL: http://dx.doi.org/10.11646/phytotaxa.176.1.2
Towards a natural classification of Dothideomycetes 6: The genera Dolabra, Placostromella, Pleosphaerellula, Polysporidiella and Pseudotrichia (Dothideomycetes incertae sedis)
No full textThambugala, Kasun M., Ariyawansa, Hiran A., Liu, Zuo-Yi, Chukeatirote, Ekachai, Hyde, Kevin D. (2014): Towards a natural classification of Dothideomycetes 6: The genera Dolabra, Placostromella, Pleosphaerellula, Polysporidiella and Pseudotrichia (Dothideomycetes incertae sedis). Phytotaxa 176 (1): 55-67, DOI: 10.11646/phytotaxa.176.1.8, URL: http://dx.doi.org/10.11646/phytotaxa.176.1.
FIGURE 4 in Towards a natural classification of Dothideomycetes 6: The genera Dolabra, Placostromella, Pleosphaerellula, Polysporidiella and Pseudotrichia (Dothideomycetes incertae sedis)
No full textFIGURE 4. Polysporidiella iranica (holotype). a. Herbarium material. b–c. Ascomata on host surface. d. Section through ascoma. e. Peridium. f. Arrangement of asci in ascomata. g–h. Bitunicate asci with many spores. i–j. Ascospores. Scale bars: d = 50 µm, e–h = 25 µm, i–j = 20 µm.Published as part of Thambugala, Kasun M., Ariyawansa, Hiran A., Liu, Zuo-Yi, Chukeatirote, Ekachai & Hyde, Kevin D., 2014, Towards a natural classification of Dothideomycetes 6: The genera Dolabra, Placostromella, Pleosphaerellula, Polysporidiella and Pseudotrichia (Dothideomycetes incertae sedis), pp. 55-67 in Phytotaxa 176 (1) on page 63, DOI: 10.11646/phytotaxa.176.1.8, http://zenodo.org/record/514406
Confusion surrounding Didymosphaeria-phylogenetic and morphological evidence suggest Didymosphaeriaceae is not a distinct family
No full textAriyawansa, Hiran A., Camporesi, Erio, Thambugala, Kasun M., Mapook, Ausana, Kang, Ji- Chuan, Alias, Siti A., Chukeatirote, Ekachai, Thines, Marco, Hyde, Kevin D. (2014): Confusion surrounding Didymosphaeria-phylogenetic and morphological evidence suggest Didymosphaeriaceae is not a distinct family. Phytotaxa 176 (1): 102-119, DOI: 10.11646/phytotaxa.176.1.12, URL: http://dx.doi.org/10.11646/phytotaxa.176.1.1
FIGURE 2 in Phylogeny and morphology of Phaeosphaeriopsis triseptata sp. nov., and Phaeosphaeriopsis glaucopunctata
No full textFIGURE 2. Phaeosphaeriopsis glaucopunctata (E00074283, syntype) a. Herbarium label and specimens of Phaeosphaeriopsis glaucopunctata. b. Ascomata on host surface. c. Section through ascoma. d. Section through peridium. e. Squash mount showing asci with pseudoparaphyses. f–j. Asci. k–o. Ascospores. Scale bars: c = 50 µm, d, e, = 20 µm, f–o = 10 µm.Published as part of Thambugala, Kasun M., Camporesi, Erio, Ariyawansa, Hiran A., Phookamsak, Rungtiwa, Liu, Zuo-Yi & Hyde, Kevin D., 2014, Phylogeny and morphology of Phaeosphaeriopsis triseptata sp. nov., and Phaeosphaeriopsis glaucopunctata, pp. 238-250 in Phytotaxa 176 (1) on page 243, DOI: 10.11646/phytotaxa.176.1.23, http://zenodo.org/record/514438
Perenniporiopsis srijayewardenepurana Thambugala & Karunarathna & Zhao & Elgorban & Tennakoon & Konara 2023, sp. nov.
No full text<i>Perenniporiopsis srijayewardenepurana</i> Thambugala & Karunarathna <i>sp</i>. <i>nov</i>. <p>MycoBank no.: MB849640</p> <p>Etymology: The specific epithet “srijayewardenepurana” refers to the University of Sri Jayewardenepura, one of the leading universities in Sri Lanka.</p> <p> <i>Synopsis</i>: Differs from <i>Perenniporiopsis minutissima</i> by having 6–8cm size, yellowish brown rubbery pileus, 17.5–40 × 8–12.5 µm size basidia, and 12–15.5× 6.0–7.5 µm size basidiospores.</p> <p> <i>Basidiocarps</i> annual, pileate; <i>pileus</i> solitary or imbricate, rubbery, bony upon drying, applanate, projecting up to 5.5 cm, 9 cm wide, and 2.5 cm thick at base; pileal surface yellowish orange, azonate, rough, without taste when fresh; margin yellowish brown to white, blunt; pore surface white when fresh, becoming pale white to cream when dry; pores round, 4–6 per mm; dissepiments thin, entire; context whitish to cream, firmly bony, azonate, up to 2 cm thick; tubes white to cream buff, firmly bony, up to 1.5 cm long. <i>Hyphal system</i> trimitic; generative hyphae thin-walled, hyaline, with clamp connections, rarely branched, 3–5 µm in diam; skeletal and binding hyphae thick-walled, hyaline, skeletal hyphae has a distinct lumen, rarely branched, interwoven, 4.5–7 µm in diam, binding hyphae thick-walled with a narrow lumen, frequently branched, interwoven, 1.5–2.5 µm in diam, CB– in the context, CB+ in the hymenophoral trama, unchanged in KOH; <i>Cystidia</i> and <i>Cystidioles</i> absent. <i>Basidia</i> clavate, with four sterigmata and a basal clamp connection, 17.5–40 × 8–12.5 µm; basidioles dominant, shape similar to basidia. <i>Basidiospores</i> oblong to ellipsoid, truncate, hyaline, thick-walled, smooth, dextrinoid, CB+, (10.5–)12–15.5(–17) × (5.5–)6.0–7.5(–9) µm, L = 13.0 µm, W = 7.0 μm, Q = 1.73–1.79 (n = 60/2).</p> <p> <i>L = mean spore length (arithmetic average of all spores), W = mean spore width (arithmetic average of all spores), Q = variation in the L/W ratios between the specimens studied, and n (a/b) = number of basidiospores (a) measured from given number (b) of specimens.</i></p> <p> <b>Specimens examined:</b> Sri Lanka, Western Province, Gampaha District, Kadawatha, on a dead unidentified wood piece, 14.09.2022, Kasun Thambugala, KTSL016, (USJ-H-119, <b>holotype</b>), <i>ibid</i>., KTSL020 (USJ-H-120).</p> <p> <i>Notes</i>: <i>Perenniporiopsis srijayewardenepurana</i> is described here as the second species of <i>Perenniporiopsis</i>. <i>Perenniporiopsis minutissima</i> differs from <i>P</i>. <i>srijayewardenepurana</i> in having orange-brown to dark reddish-brown rubbery basidiocarps, 18.5–30 × 8–13µm size basidia and 12–15 × 6.5–8 µm size basidiospores. In the phylogeny presented here, <i>P</i>. <i>srijayewardenepurana</i> formed a distinct and highly supported clade (BS/BPP = 100%/1.00) which is sister to <i>P</i>. <i>minutissima</i> (Figure 1).</p>Published as part of <i>Thambugala, Kasun M., Karunarathna, Samantha C., Zhao, Chang-Lin, Elgorban, Abdallah M., Tennakoon, Danushka S. & Konara, Ushari A., 2023, Perenniporiopsis srijayewardenepurana sp. nov. and validation of Pyrrhoderma nigrum in Sri Lanka, pp. 123-136 in Phytotaxa 619 (2)</i> on pages 130-131, DOI: 10.11646/phytotaxa.619.2.1, <a href="http://zenodo.org/record/8425855">http://zenodo.org/record/8425855</a>
The status of Myriangiaceae (Dothideomycetes)
No full textDissanayake, Asha J., Jayawardena, Ruvishika S., Boonmee, Saranyaphat, Thambugala, Kasun M., Tian, Qing, Mapook, Ausana, Senanayake, Indunil C., Yan, Jiye, Li, Yan Mei, Li, Xinghong, Chukeatirote, Ekachai, Hyde, Kevin D. (2014): The status of Myriangiaceae (Dothideomycetes). Phytotaxa 176 (1): 219-237, DOI: 10.11646/phytotaxa.176.1.22, URL: http://dx.doi.org/10.11646/phytotaxa.176.1.2
FIGURE 4 in Towards a natural classification of Dothideomycetes 6: The genera Dolabra, Placostromella, Pleosphaerellula, Polysporidiella and Pseudotrichia (Dothideomycetes incertae sedis)
No full textFIGURE 4. Polysporidiella iranica (holotype). a. Herbarium material. b–c. Ascomata on host surface. d. Section through ascoma. e. Peridium. f. Arrangement of asci in ascomata. g–h. Bitunicate asci with many spores. i–j. Ascospores. Scale bars: d = 50 µm, e–h = 25 µm, i–j = 20 µm.Published as part of Thambugala, Kasun M., Ariyawansa, Hiran A., Liu, Zuo-Yi, Chukeatirote, Ekachai & Hyde, Kevin D., 2014, Towards a natural classification of Dothideomycetes 6: The genera Dolabra, Placostromella, Pleosphaerellula, Polysporidiella and Pseudotrichia (Dothideomycetes incertae sedis), pp. 55-67 in Phytotaxa 176 (1) on page 63, DOI: 10.11646/phytotaxa.176.1.8, http://zenodo.org/record/514406
FIGURE 3 in Towards a natural classification of Dothideomycetes 2: The genera Cucurbidothis, Heterosphaeriopsis, Hyalosphaera, Navicella and Pleiostomellina (Dothideomycetes incertae sedis)
No full textFIGURE 3. Pleiostomellina pernambucensis (holotype). a. Close-up of ascostroma. b. Section of ascostroma. c. Close-up of the peridium. d–f. Mature and immature asci without a pedicel. g–h. Dark brown to chestnut-brown ascospores. Scale bars: b = 100 µm, c = 10 µm, d–f = 10 µm, g–h = 5 µm.Published as part of Ariyawansa, Hiran A., Thambugala, Kasun M., Kang, Ji-Chuan, Alias, Siti A., Chukeatirote, Ekachai & Hyde, Kevin D., 2014, Towards a natural classification of Dothideomycetes 2: The genera Cucurbidothis, Heterosphaeriopsis, Hyalosphaera, Navicella and Pleiostomellina (Dothideomycetes incertae sedis), pp. 7-17 in Phytotaxa 176 (1) on page 12, DOI: 10.11646/phytotaxa.176.1.4, http://zenodo.org/record/514400
Taxonomy And Phylogeny Of Dothideomycetes
No full textMckenzie, Eric, Jones, E.B. Gareth, Hyde, Kevin, Mckenzie, Editorial-Taxonomy And Phylogeny Of Dothideomycetes Eric H.C., Jones, E.B. Gareth, Hyde, Kevin D., Ariyawansa, Hiran A., Thambugala, Kasun M., Kang, Ji-Chuan, Alias, Siti A., Chukeatirote, Ekachai, Hyde, Kevin D. (2014): Taxonomy And Phylogeny Of Dothideomycetes. Phytotaxa 176 (1): 3-4, DOI: 10.11646/phytotaxa.176.1.2, URL: http://dx.doi.org/10.11646/phytotaxa.176.1.
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