219 lines
16 KiB
XML
219 lines
16 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/mycokeys.52.34647" ID-GBIF-Dataset="649cf26c-a0b9-4f54-abd4-07fa14b8ae79" ID-PMC="PMC6533235" ID-Pensoft-Pub="1314-4049-52-103" ID-PubMed="31148935" ModsDocAuthor="" ModsDocDate="2019" ModsDocID="1314-4049-52-103" ModsDocOrigin="MycoKeys 52" ModsDocTitle="Recognition of Mycenasect.Amparoina sect. nov. (Mycenaceae, Agaricales), including four new species and revision of the limits of sect. Sacchariferae" checkinTime="1558084038820" checkinUser="pensoft" docAuthor="Na, Qin & Bau, Tolgor" docDate="2019" docId="4B73B1D6F20149D9E091144007418334" docLanguage="en" docName="MycoKeys 52: 103-124" docOrigin="MycoKeys 52" docSource="http://dx.doi.org/10.3897/mycokeys.52.34647" docTitle="Mycena hygrophoroides T. Bau & Q. Na, sp. nov." docType="treatment" docVersion="4" lastPageNumber="103" masterDocId="FF801761E349FFEB7B5AFFA4FFE1A95E" masterDocTitle="Recognition of Mycenasect. Amparoina sect. nov. (Mycenaceae, Agaricales), including four new species and revision of the limits of sect. Sacchariferae" masterLastPageNumber="124" masterPageNumber="103" pageNumber="103" updateTime="1668136225537" 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>Recognition of Mycenasect. Amparoina sect. nov. (Mycenaceae, Agaricales), including four new species and revision of the limits of sect. Sacchariferae</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>Na, Qin</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>Bau, Tolgor</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>2019</mods:date>
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<mods:detail type="volume">
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<mods:number>52</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>103</mods:start>
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<mods:end>124</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.52.34647</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.52.34647</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1314-4049-52-103</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="157209894" LSID="urn:lsid:plazi:treatment:4B73B1D6F20149D9E091144007418334" httpUri="http://treatment.plazi.org/id/4B73B1D6F20149D9E091144007418334" lastPageNumber="103" pageId="0" pageNumber="103">
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<subSubSection pageId="0" pageNumber="103" type="nomenclature">
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<paragraph pageId="0" pageNumber="103">
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<taxonomicName LSID="829099" authority="T. Bau & Q. Na" class="Agaricomycetes" family="Mycenaceae" genus="Mycena" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Mycena hygrophoroides" order="Agaricales" pageId="0" pageNumber="103" phylum="Basidiomycota" rank="species" species="hygrophoroides">Mycena hygrophoroides T.Bau & Q.Na</taxonomicName>
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<taxonomicNameLabel pageId="0" pageNumber="103">sp. nov.</taxonomicNameLabel>
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Figs 2h, 5
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="103" type="diagnosis">
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<paragraph pageId="0" pageNumber="103">Diagnosis.</paragraph>
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<paragraph pageId="0" pageNumber="103">
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Pileus concave with slight pruinose. Lamellae distant. Stipe with dense white fibrils and swollen base. Acanthocysts forming two types. Caulocystidia long-elliptic with conical excrescences, up to 120
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<normalizedToken originalValue="μm">μm</normalizedToken>
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long.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="103" type="holotype">
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<paragraph pageId="0" pageNumber="103">Holotype.</paragraph>
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<paragraph pageId="0" pageNumber="103">CHINA. Guangdong Province, Shaoguan City, Chebaling National Nature Reserve, 8 May 2017, Qin Na, HMJAU 43417.</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="103" type="etymology">
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<paragraph pageId="0" pageNumber="103">Etymology.</paragraph>
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<paragraph pageId="0" pageNumber="103">Name refers to its sparse lamellae.</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="103" type="description">
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<paragraph pageId="0" pageNumber="103">Description.</paragraph>
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<paragraph pageId="0" pageNumber="103">
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Pileus 1.5-2.5 mm in diam., campanulate to hemispherical, applanate or slightly concave at centre, white with greyish shade (6B1), shallowly sulcate, translucent-striate, slightly pruinose, pubescent. Context white, thin and very fragile. Lamellae distant, sparse, white, concolorous with the sides. Stipe 4.5-8.2
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<normalizedToken originalValue="×">x</normalizedToken>
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0.5-0.8 mm, cylindrical, hollow, fragile, pure white (5A1) with a greyish (5B1) base, covered with dense white fibrils, base swollen and not forming basal disc, hirsute. Odour and taste indistinctive.
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</paragraph>
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<paragraph pageId="0" pageNumber="103">
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Basidiospores (6.9-)7.2-8.9(-9.3)
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<normalizedToken originalValue="×">x</normalizedToken>
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(5.3-)6.4-6.7(-7.1)
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<normalizedToken originalValue="μm">μm</normalizedToken>
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, Q=1.2-1.5, Qav=1.31, broadly-ellipsoid, hyaline in water and 5% KOH, amyloid, smooth. Basidia 15-21
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<normalizedToken originalValue="×">x</normalizedToken>
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7-9
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<normalizedToken originalValue="μm">μm</normalizedToken>
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, 4- or 2-spored, clavate, hyaline. Cheilocystidia 23-37
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<normalizedToken originalValue="×">x</normalizedToken>
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19-28
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<normalizedToken originalValue="μm">μm</normalizedToken>
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, subglobose, sphaero-pedunculate to utriform with numerous sharp spines, thin-walled and hyaline, inamyloid. Pleurocystidia absent. Pileipellis hyphae 3-9
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<normalizedToken originalValue="μm">μm</normalizedToken>
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wide, dextrinoid; cherocytes absent; a cutis overlaid by elements of universal veil, not in chains; acanthocysts forming two types, pyriform to vesicular, 13-29
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<normalizedToken originalValue="×">x</normalizedToken>
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11-24
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<normalizedToken originalValue="μm">μm</normalizedToken>
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, clavate to ovoid or obovoid, 29-42
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<normalizedToken originalValue="×">x</normalizedToken>
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14-20
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<normalizedToken originalValue="μm">μm</normalizedToken>
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, inamyloid. Hyphae of the stipitipellis 3-7
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<normalizedToken originalValue="μm">μm</normalizedToken>
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wide, smooth, dextrinoid; caulocystidia abundant, clavate, long-elliptic, 32-122
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<normalizedToken originalValue="×">x</normalizedToken>
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8-11
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<normalizedToken originalValue="μm">μm</normalizedToken>
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, with numbers of conical spines, inamyloid. Clamps present in all tissues.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="103" type="habit and habitat">
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<paragraph pageId="0" pageNumber="103">Habit and habitat.</paragraph>
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<paragraph pageId="0" pageNumber="103">
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Scattered on rotten wood of coniferous trees, ex.
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<taxonomicName class="Mucoromycetes" family="Choanephoraceae" genus="Cunninghamia" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Cunninghamia" order="Mucorales" pageId="0" pageNumber="103" phylum="Zygomycota" rank="genus">Cunninghamia</taxonomicName>
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.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="103" type="materials_examined">
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<paragraph pageId="0" pageNumber="103">Other specimens examined.</paragraph>
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<paragraph pageId="0" pageNumber="103">Guangdong Province, Shaoguan City, Liangjiang Town, Shangxie Village, 7 May 2017, Qin Na, HMJAU 43421.</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="103" type="remarks">
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<paragraph pageId="0" pageNumber="103">Remarks.</paragraph>
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<paragraph pageId="0" pageNumber="103">
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<taxonomicName class="Agaricomycetes" family="Mycenaceae" genus="Mycena" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Mycena hygrophoroides" order="Agaricales" pageId="0" pageNumber="103" phylum="Basidiomycota" rank="species" species="hygrophoroides">Mycena hygrophoroides</taxonomicName>
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could be considered to be a member of
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<taxonomicName class="Agaricomycetes" family="Mycenaceae" genus="Hemimycena" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Hemimycena" order="Agaricales" pageId="0" pageNumber="103" phylum="Basidiomycota" rank="genus">Hemimycena</taxonomicName>
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Singer owing to the tiny basidiomata and sparse lamellae, but the absence of a basal disc, amyloid spores and spinulose cheilocystidia, acanthocysts and caulocystidia are diagnostic characters for
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<taxonomicName lsidName="M. hygrophoroides" pageId="0" pageNumber="103" rank="species" species="hygrophoroides">M. hygrophoroides</taxonomicName>
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, which should be placed in
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<taxonomicName class="Agaricomycetes" family="Mycenaceae" genus="Mycena" higherTaxonomySource="CoL" infraspecific-rank="sect." kingdom="Fungi" lsidName="Mycena" order="Agaricales" pageId="0" pageNumber="103" phylum="Basidiomycota" rank="section" section="Amparoina">Mycena sect. Amparoina</taxonomicName>
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stirps
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<taxonomicName genus="Alphitophora" lsidName="Alphitophora" pageId="0" pageNumber="103" rank="genus">Alphitophora</taxonomicName>
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.
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<taxonomicName class="Agaricomycetes" family="Mycenaceae" genus="Mycena" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Mycena acanthophila" order="Agaricales" pageId="0" pageNumber="103" phylum="Basidiomycota" rank="species" species="acanthophila">Mycena acanthophila</taxonomicName>
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J.C.Zamora&
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<normalizedToken originalValue="Català">Catala</normalizedToken>
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, of which the holotype was collected from Spain growing on dead branches of
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<taxonomicName family="Leguminosae" lsidName="Sacchariferae" pageId="0" pageNumber="103" rank="family">Leguminosae</taxonomicName>
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, most resembles
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<taxonomicName lsidName="M. hygrophoroides" pageId="0" pageNumber="103" rank="species" species="hygrophoroides">M. hygrophoroides</taxonomicName>
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, but differs in having a yellow pileus, smaller cheilocystidia (13.5-22
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<normalizedToken originalValue="×">x</normalizedToken>
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8.5-12
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<normalizedToken originalValue="μm">μm</normalizedToken>
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) and diverse caulocystidia (Zamora and
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<normalizedToken originalValue="Català">Catala</normalizedToken>
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2012).
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<taxonomicName class="Agaricomycetes" family="Mycenaceae" genus="Mycena" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Mycena depilata" order="Agaricales" pageId="0" pageNumber="103" phylum="Basidiomycota" rank="species" species="depilata">Mycena depilata</taxonomicName>
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, a species of stirps
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<taxonomicName genus="Alphitophora" lsidName="Alphitophora" pageId="0" pageNumber="103" rank="genus">Alphitophora</taxonomicName>
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, shows some morphological similarities to
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<taxonomicName lsidName="M. hygrophoroides" pageId="0" pageNumber="103" rank="species" species="hygrophoroides">M. hygrophoroides</taxonomicName>
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in possessing white and tiny basidiomata, distant lamellae (L = 7-9) and globose-pedicellate acanthocysts with hyaline contents. However,
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<taxonomicName lsidName="M. depilata" pageId="0" pageNumber="103" rank="species" species="depilata">M. depilata</taxonomicName>
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differs in producing ellipsoid spores (Q = 1.64
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<normalizedToken originalValue="±">+/-</normalizedToken>
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0.11), broadly clavate cheilocystidia and shorter caulocystidia (16-50
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<normalizedToken originalValue="×">x</normalizedToken>
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5-16
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<normalizedToken originalValue="μm">μm</normalizedToken>
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;
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<bibRefCitation author="Singer, R" journalOrPublisher="Fieldiana" pageId="0" pageNumber="103" pagination="1 - 133" title="New taxa and new combinations of Agaricales (Diagnose fungorum novorum Agaricalium IV)." url="https://doi.org/10.5962/bhl.title.2537" volume="21" year="1989">Singer 1989</bibRefCitation>
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).
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<taxonomicName class="Agaricomycetes" family="Mycenaceae" genus="Mycena" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Mycena hemitrichialis" order="Agaricales" pageId="0" pageNumber="103" phylum="Basidiomycota" rank="species" species="hemitrichialis">Mycena hemitrichialis</taxonomicName>
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is difficult to distinguish from
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<taxonomicName lsidName="M. hygrophoroides" pageId="0" pageNumber="103" rank="species" species="hygrophoroides">M. hygrophoroides</taxonomicName>
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, but
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<taxonomicName lsidName="M. hemitrichialis" pageId="0" pageNumber="103" rank="species" species="hemitrichialis">M. hemitrichialis</taxonomicName>
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has free to subfree lamellae, longer caulocystidia (100-300
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<normalizedToken originalValue="×">x</normalizedToken>
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5-15
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<normalizedToken originalValue="μm">μm</normalizedToken>
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) and ellipsoid spores (
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<bibRefCitation author="Singer, R" journalOrPublisher="Fieldiana" pageId="0" pageNumber="103" pagination="1 - 133" title="New taxa and new combinations of Agaricales (Diagnose fungorum novorum Agaricalium IV)." url="https://doi.org/10.5962/bhl.title.2537" volume="21" year="1989">Singer 1989</bibRefCitation>
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). In comparison with
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<taxonomicName lsidName="M. hygrophoroides" pageId="0" pageNumber="103" rank="species" species="hygrophoroides">M. hygrophoroides</taxonomicName>
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,
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<taxonomicName lsidName="M. alphitophora" pageId="0" pageNumber="103" rank="species" species="alphitophora">M. alphitophora</taxonomicName>
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and
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<taxonomicName lsidName="M. distincta" pageId="0" pageNumber="103" rank="species" species="distincta">M. distincta</taxonomicName>
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have larger basidiomata and longer caulocystidia of more than 400
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<normalizedToken originalValue="μm">μm</normalizedToken>
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and 300
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<normalizedToken originalValue="μm">μm</normalizedToken>
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, respectively (
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<bibRefCitation author="Desjardin, DE" journalOrPublisher="Bibliotheca Mycologica" pageId="0" pageNumber="103" pagination="1 - 89" title="A preliminary accounting of the worldwide members of Mycenasect. Sacchariferae." volume="159" year="1995">Desjardin 1995</bibRefCitation>
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;
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<bibRefCitation author="Aravindakshan, DM" pageId="0" pageNumber="103" url="https://doi.org/10.13140/RG.2.1.2116.4003" year="2015">Aravindakshan and Manimohan 2015</bibRefCitation>
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). Their noticeably pigmented pileus enables discrimination of
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<taxonomicName lsidName="M. brunneospinosa" pageId="0" pageNumber="103" rank="species" species="brunneospinosa">M. brunneospinosa</taxonomicName>
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,
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<taxonomicName lsidName="M. incarnativelum" pageId="0" pageNumber="103" rank="species" species="incarnativelum">M. incarnativelum</taxonomicName>
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and
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<taxonomicName lsidName="M. roseotincta" pageId="0" pageNumber="103" rank="species" species="roseotincta">M. roseotincta</taxonomicName>
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from
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<taxonomicName lsidName="M. hygrophoroides" pageId="0" pageNumber="103" rank="species" species="hygrophoroides">M. hygrophoroides</taxonomicName>
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(
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<bibRefCitation author="Desjardin, DE" journalOrPublisher="Bibliotheca Mycologica" pageId="0" pageNumber="103" pagination="1 - 89" title="A preliminary accounting of the worldwide members of Mycenasect. Sacchariferae." volume="159" year="1995">Desjardin 1995</bibRefCitation>
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;
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<bibRefCitation author="Aravindakshan, DM" pageId="0" pageNumber="103" url="https://doi.org/10.13140/RG.2.1.2116.4003" year="2015">Aravindakshan and Manimohan 2015</bibRefCitation>
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). The significantly larger basidiomata and globose spores can be used to distinguish
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<taxonomicName lsidName="M. corynephora" pageId="0" pageNumber="103" rank="species" species="corynephora">M. corynephora</taxonomicName>
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,
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<taxonomicName lsidName="M. globispora" pageId="0" pageNumber="103" rank="species" species="globispora">M. globispora</taxonomicName>
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and
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<taxonomicName lsidName="M. yalensis" pageId="0" pageNumber="103" rank="species" species="yalensis">M. yalensis</taxonomicName>
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from
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<taxonomicName lsidName="M. hygrophoroides" pageId="0" pageNumber="103" rank="species" species="hygrophoroides">M. hygrophoroides</taxonomicName>
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.
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</paragraph>
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<caption pageId="0" pageNumber="103">
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<paragraph pageId="0" pageNumber="103">
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Figure 5. Microscopic features of
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<taxonomicName class="Agaricomycetes" family="Mycenaceae" genus="Mycena" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Mycena hygrophoroides" order="Agaricales" pageId="0" pageNumber="103" phylum="Basidiomycota" rank="species" species="hygrophoroides">Mycena hygrophoroides</taxonomicName>
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(HMJAU 43417, holotype) a Basidiomata b Basidia c Basidiospores d Cheilocystidia e Universal veil acanthocysts f Caulocystidia g Pileipellis. Scale bars: 2 mm (a); 10
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<normalizedToken originalValue="μm">μm</normalizedToken>
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(
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<normalizedToken originalValue="b–g">b-g</normalizedToken>
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). Drawing by Qin Na.
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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> |