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182 lines
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<document ID-DOI="http://dx.doi.org/10.3897/mycokeys.28.21029" ID-GBIF-Dataset="c112bbd8-9c50-4837-b81a-91f38af025df" ID-PMC="PMC5804139" ID-Pensoft-Pub="1314-4049-28-1" ID-PubMed="29559820" ModsDocAuthor="" ModsDocDate="2017" ModsDocID="1314-4049-28-1" ModsDocOrigin="MycoKeys 28" ModsDocTitle="Two new species of Xanthagaricus and some notes on Heinemannomyces from Asia" checkinTime="1512516014102" checkinUser="pensoft" docAuthor="Hosen, Md. Iqbal, Song, Zong-ping, Gates, Genevieve, Samantha C. Karunarathna,, Chowdhury, M. Salahuddin M. & Li, Tai-Hui" docDate="2017" docId="F1BCE71FF9AB25C1900BFD357CF4B81B" docLanguage="en" docName="MycoKeys 28: 1-18" docOrigin="MycoKeys 28" docSource="http://dx.doi.org/10.3897/mycokeys.28.21029" docTitle="Xanthagaricus necopinatus Iqbal Hosen, T. H. Li, & G. M. Gates, sp. nov." docType="treatment" docVersion="4" lastPageNumber="4" masterDocId="FFB9FFBAFFC0FFB97267FFAD056FFFF9" masterDocTitle="Two new species of Xanthagaricus and some notes on Heinemannomyces from Asia" masterLastPageNumber="18" masterPageNumber="1" pageNumber="3" updateTime="1668135878761" updateUser="ExternalLinkService">
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<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo>
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<mods:title>Two new species of Xanthagaricus and some notes on Heinemannomyces from Asia</mods:title>
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</mods:titleInfo>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Hosen, Md. Iqbal</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Song, Zong-ping</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Gates, Genevieve</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Samantha C. Karunarathna,</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Chowdhury, M. Salahuddin M.</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Li, Tai-Hui</mods:namePart>
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</mods:name>
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<mods:typeOfResource>text</mods:typeOfResource>
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<mods:relatedItem type="host">
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<mods:titleInfo>
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<mods:title>MycoKeys</mods:title>
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</mods:titleInfo>
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<mods:part>
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<mods:date>2017</mods:date>
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<mods:detail type="volume">
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<mods:number>28</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>1</mods:start>
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<mods:end>18</mods:end>
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</mods:extent>
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</mods:part>
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</mods:relatedItem>
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<mods:location>
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<mods:url>http://dx.doi.org/10.3897/mycokeys.28.21029</mods:url>
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</mods:location>
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<mods:classification>journal article</mods:classification>
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<mods:identifier type="DOI">http://dx.doi.org/10.3897/mycokeys.28.21029</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1314-4049-28-1</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="137627602" LSID="urn:lsid:plazi:treatment:F1BCE71FF9AB25C1900BFD357CF4B81B" httpUri="http://treatment.plazi.org/id/F1BCE71FF9AB25C1900BFD357CF4B81B" lastPageId="3" lastPageNumber="4" pageId="2" pageNumber="3">
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<subSubSection pageId="2" pageNumber="3" type="nomenclature">
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<paragraph pageId="2" pageNumber="3">
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<taxonomicName LSID="822731" authority="Iqbal Hosen, T. H. Li, & G. M. Gates" class="Agaricomycetes" family="Agaricaceae" genus="Xanthagaricus" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Xanthagaricus necopinatus" order="Agaricales" pageId="2" pageNumber="3" phylum="Basidiomycota" rank="species" species="necopinatus">
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<pageBreakToken pageId="2" pageNumber="3" start="start">Xanthagaricus</pageBreakToken>
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necopinatus Iqbal Hosen, T.H. Li, & G.M. Gates
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</taxonomicName>
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<taxonomicNameLabel pageId="2" pageNumber="3">sp. nov.</taxonomicNameLabel>
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Figs 2c, d, 4, 5b
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</paragraph>
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</subSubSection>
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<subSubSection pageId="3" pageNumber="4" type="diagnosis">
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<paragraph pageId="3" pageNumber="4">
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<pageBreakToken pageId="3" pageNumber="4" start="start">Diagnosis</pageBreakToken>
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.
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</paragraph>
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<paragraph pageId="3" pageNumber="4">
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Morphologically similar to
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<taxonomicName lsidName="X. flavosquamosus" pageId="3" pageNumber="4" rank="species" species="flavosquamosus">X. flavosquamosus</taxonomicName>
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but differs in the presence of a fugacious annulus, smaller and denser squamules, comparatively smaller basidiospores with rugulose-rough surface, clavate to narrowly clavate cheilocystidia.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="3" pageNumber="4" type="typification">
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<paragraph pageId="3" pageNumber="4">Typification.</paragraph>
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<paragraph pageId="3" pageNumber="4">BANGLADESH, Dhaka Division, Sher-e-Bangla Nagar, Chondrima Uddan, 21 Aug 2014, Iqbal 821 (GDGM 46632, holotype; PHI-12, isotype).</paragraph>
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</subSubSection>
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<subSubSection pageId="3" pageNumber="4" type="etymology">
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<paragraph pageId="3" pageNumber="4">Etymology.</paragraph>
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<paragraph pageId="3" pageNumber="4">
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The species epithet "
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<taxonomicName lsidName="necopinatus" pageId="3" pageNumber="4" rank="species" species="necopinatus">necopinatus</taxonomicName>
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" (Lat.) means unexpected, refers to the unexpected, surprising habitat of the collection, which was found on a concrete wall.
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</paragraph>
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<caption pageId="3" pageNumber="4">
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<paragraph pageId="3" pageNumber="4">
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Figure 3. Microscopic features of
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<taxonomicName class="Agaricomycetes" family="Agaricaceae" genus="Xanthagaricus" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Xanthagaricus flavosquamosus" order="Agaricales" pageId="3" pageNumber="4" phylum="Basidiomycota" rank="species" species="flavosquamosus">Xanthagaricus flavosquamosus</taxonomicName>
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(GDGM 50918, holotype). a Basidia with basidioles b Basidiospores c Epithelial pileipellis with encrusted wall. d Cheilocystidia. Scale bars: 10
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<normalizedToken originalValue="µm">µm</normalizedToken>
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.
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</paragraph>
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</caption>
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</subSubSection>
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<subSubSection pageId="3" pageNumber="4" type="description">
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<paragraph pageId="3" pageNumber="4">Description.</paragraph>
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<paragraph pageId="3" pageNumber="4">
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Basidiomata small-sized. Pileus 10-15 mm broad, hemispherical, convex to plano-convex, yellow (2A4-7) to vivid yellow (2A8), maize yellow (4A6), light olive yellow (3D3-4) to pale brown (5D4) at disc, with yellow (3A4) to yellowish brown (5D8, 5E8) squamulose or finely fibrillose squamules on the surface, more concentrated and darker at center but scattered elsewhere; margin incurved with appendiculate velar remnants, concolorous with the pileus squamules; context 0.7 mm thick at pileus center, elsewhere thin, unchanged when cut or injured. Lamellae free, depressed around the stipe, yellowish white (3A2) to pinkish white (10A2), light brownish gray (6C3, 6D3), with crenulate edge, broadly ventricose; lamellulae commonly with 3-4 tiers. Stipe 18-28
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<normalizedToken originalValue="×">x</normalizedToken>
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1.5-2 mm, equal to slightly attenuated towards base, central, cylindrical, slightly curved, fistulose, yellowish brown (5D4) to dull brown (5C2), with some scattered squamules on surface; squamules more concentrated toward apex. Annulus very thin and tiny, superior, fugacious, often gone due to handling or with age. Odor and taste unknown.
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</paragraph>
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<paragraph pageId="3" pageNumber="4">
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Basidiospores [60/3/1] 4-5
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<normalizedToken originalValue="×">x</normalizedToken>
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2.7-3.2
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<normalizedToken originalValue="µm">µm</normalizedToken>
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, [mean length = 4.45
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<normalizedToken originalValue="µm">µm</normalizedToken>
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, mean width = 2.98
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<normalizedToken originalValue="µm">µm</normalizedToken>
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, Q = (1.31
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<normalizedToken originalValue="–)1.41–1.64(–">-)1.41-1.64(-</normalizedToken>
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1.72), Qm = 1.49
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<normalizedToken originalValue="±">+/-</normalizedToken>
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0.064], ellipsoid to ovoid-ellipsoid, slightly thick-walled (0.5
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<normalizedToken originalValue="µm">µm</normalizedToken>
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), inamyloid, smooth under light microscope but rugulose-rough surface under SEM, yellow to yellowish brown in H2O and 5% KOH. Basidia 13-17
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<normalizedToken originalValue="×">x</normalizedToken>
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5-6
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<normalizedToken originalValue="µm">µm</normalizedToken>
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, clavate to narrowly clavate, pale yellow in H2O, thin-walled, 4-spored, with sterigmata up to 2
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<normalizedToken originalValue="µm">µm</normalizedToken>
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long. Lamellar trama regular to subregular, composed of thin-walled cylindrical hyphae, 4-8
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<normalizedToken originalValue="µm">µm</normalizedToken>
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wide. Cheilocystidia 15-20
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<normalizedToken originalValue="×">x</normalizedToken>
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4-6
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<normalizedToken originalValue="µm">µm</normalizedToken>
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, abundant, clavate to narrowly clavate, sometimes narrowly fusoid, smooth, hyaline, thin-walled. Pleurocystidia absent. Pileipellis (squamules on pileus) epithelial, composed of agglutinated globose, subglobose to broadly ellipsoid, rarely clavate cells, terminal cells measuring 9-15
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<normalizedToken originalValue="×">x</normalizedToken>
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6-10
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<normalizedToken originalValue="µm">µm</normalizedToken>
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, slightly encrusted, with some vacuolar pigments when observed in KOH or H2O. Caulocystidia sometimes present, cylindro-clavate to narrowly clavate measuring 18-25
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<normalizedToken originalValue="×">x</normalizedToken>
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5-7
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<normalizedToken originalValue="µm">µm</normalizedToken>
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, thin-walled, smooth, hyaline. Stipe trama composed of parallel hyphae 4-10
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<normalizedToken originalValue="µm">µm</normalizedToken>
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wide, yellowish brown in mass but pale yellow to subhyaline individually. Clamp connections absent in all tissues.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="3" pageNumber="4" type="distribution">
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<paragraph pageId="3" pageNumber="4">Habit, habitat and distribution.</paragraph>
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<paragraph pageId="3" pageNumber="4">Scattered, clustered on a concrete wall, currently only known from Bangladesh.</paragraph>
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<caption pageId="3" pageNumber="4">
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<paragraph pageId="3" pageNumber="4">
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Figure 4. Microscopic features of
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<taxonomicName class="Agaricomycetes" family="Agaricaceae" genus="Xanthagaricus" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Xanthagaricus necopinatus" order="Agaricales" pageId="3" pageNumber="4" phylum="Basidiomycota" rank="species" species="necopinatus">Xanthagaricus necopinatus</taxonomicName>
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(GDGM 46632, holotype; PHI-12, isotype). a Basidia with basidioles b Basidiospores c Epithelial pileipellis with encrusted wall d Cheilocystidia. Scale bars: 10
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<normalizedToken originalValue="µm">µm</normalizedToken>
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.
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</paragraph>
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</caption>
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<caption pageId="3" pageNumber="4">
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<paragraph pageId="3" pageNumber="4">
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Figure 5. SEM of basidiospores of
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<taxonomicName class="Agaricomycetes" family="Agaricaceae" genus="Xanthagaricus" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Xanthagaricus" order="Agaricales" pageId="3" pageNumber="4" phylum="Basidiomycota" rank="genus">Xanthagaricus</taxonomicName>
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spp. aSEM basidiospores of
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<taxonomicName lsidName="X. flavosquamosus" pageId="3" pageNumber="4" rank="species" species="flavosquamosus">X. flavosquamosus</taxonomicName>
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(GDGM 50918, holotype) bSEM of basidiospores of
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<taxonomicName lsidName="X. necopinatus" pageId="3" pageNumber="4" rank="species" species="necopinatus">X. necopinatus</taxonomicName>
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(PHI-12, isotype). Scale bars: 5
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<normalizedToken originalValue="µm">µm</normalizedToken>
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.
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</paragraph>
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</caption>
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</subSubSection>
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</treatment>
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</document>
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