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<document ID-DOI="http://dx.doi.org/10.3897/mycokeys.44.24998" ID-GBIF-Dataset="26bbead9-f466-4886-bace-a5ed686e5223" ID-PMC="PMC6302069" ID-Pensoft-Pub="1314-4049-44-1" ID-PubMed="30588166" ModsDocAuthor="" ModsDocDate="2018" ModsDocID="1314-4049-44-1" ModsDocOrigin="MycoKeys 44" ModsDocTitle="Three new species of EntolomasubgenusPouzarella from China based on morphological and molecular data" checkinTime="1555333451517" checkinUser="pensoft" docAuthor="He, Xiao-Lan, Horak, Egon, Wang, Di, Peng, Wei-Hong &amp; Gan, Bing-Cheng" docDate="2018" docId="4EA2683484D6B2A08E41EE95CE8063D1" docLanguage="en" docName="MycoKeys 44: 1-18" docOrigin="MycoKeys 44" docSource="http://dx.doi.org/10.3897/mycokeys.44.24998" docTitle="Entoloma erectoides Xiao L. He &amp; E. Horak, sp. nov." docType="treatment" docVersion="4" lastPageNumber="1" masterDocId="5E6D7C57080B056DFFCCD231FFF6FFE9" masterDocTitle="Three new species of EntolomasubgenusPouzarella from China based on morphological and molecular data" masterLastPageNumber="18" masterPageNumber="1" pageNumber="1" updateTime="1668136119543" updateUser="ExternalLinkService">
<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo>
<mods:title>Three new species of EntolomasubgenusPouzarella from China based on morphological and molecular data</mods:title>
</mods:titleInfo>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>He, Xiao-Lan</mods:namePart>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Horak, Egon</mods:namePart>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Wang, Di</mods:namePart>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Peng, Wei-Hong</mods:namePart>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Gan, Bing-Cheng</mods:namePart>
</mods:name>
<mods:typeOfResource>text</mods:typeOfResource>
<mods:relatedItem type="host">
<mods:titleInfo>
<mods:title>MycoKeys</mods:title>
</mods:titleInfo>
<mods:part>
<mods:date>2018</mods:date>
<mods:detail type="volume">
<mods:number>44</mods:number>
</mods:detail>
<mods:extent unit="page">
<mods:start>1</mods:start>
<mods:end>18</mods:end>
</mods:extent>
</mods:part>
</mods:relatedItem>
<mods:location>
<mods:url>http://dx.doi.org/10.3897/mycokeys.44.24998</mods:url>
</mods:location>
<mods:classification>journal article</mods:classification>
<mods:identifier type="DOI">http://dx.doi.org/10.3897/mycokeys.44.24998</mods:identifier>
<mods:identifier type="Pensoft-Pub">1314-4049-44-1</mods:identifier>
</mods:mods>
<treatment ID-GBIF-Taxon="156202145" LSID="urn:lsid:plazi:treatment:4EA2683484D6B2A08E41EE95CE8063D1" httpUri="http://treatment.plazi.org/id/4EA2683484D6B2A08E41EE95CE8063D1" lastPageNumber="1" pageId="0" pageNumber="1">
<subSubSection pageId="0" pageNumber="1" type="nomenclature">
<paragraph pageId="0" pageNumber="1">
<taxonomicName LSID="828692" authority="Xiao L. He &amp; E. Horak" class="Agaricomycetes" family="Entolomataceae" genus="Entoloma" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Entoloma erectoides" order="Agaricales" pageId="0" pageNumber="1" phylum="Basidiomycota" rank="species" species="erectoides">Entoloma erectoides Xiao L. He &amp; E. Horak</taxonomicName>
<taxonomicNameLabel pageId="0" pageNumber="1">sp. nov.</taxonomicNameLabel>
Figs 1a, b, 2
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="diagnosis">
<paragraph pageId="0" pageNumber="1">Diagnosis.</paragraph>
<paragraph pageId="0" pageNumber="1">
<taxonomicName lsidName="E. erectoides" pageId="0" pageNumber="1" rank="species" species="erectoides">E. erectoides</taxonomicName>
is distinguished by the greyish brown pileus covered with silvery fibrils, large basidiospores (13.5-17.5
<normalizedToken originalValue="×">x</normalizedToken>
8-9.5
<normalizedToken originalValue="µm">µm</normalizedToken>
) and presence of ovoid to subutriform cheilocystidia.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="materials_examined">
<paragraph pageId="0" pageNumber="1">Type.</paragraph>
<paragraph pageId="0" pageNumber="1">
CHINA. SICHUAN PROV.: Yajiang County, Gexigou National Nature Reserve,
<geoCoordinate direction="north" orientation="latitude" precision="925" value="29.55">29°33'N</geoCoordinate>
,
<geoCoordinate direction="east" orientation="longitude" precision="925" value="100.833336">100°50'E</geoCoordinate>
, elevation ca. 2980 m, August 2014, He XL (SAAS 1232, holotype; ZT 14180, isotype).
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="etymology">
<paragraph pageId="0" pageNumber="1">Etymology.</paragraph>
<paragraph pageId="0" pageNumber="1">Erectoides, refers to the suberect to erect fibrils on the pileus.</paragraph>
<caption pageId="0" pageNumber="1">
<paragraph pageId="0" pageNumber="1">
Figure 1. Basidiomata of the new species. a, b
<taxonomicName lsidName="E. erectoides" pageId="0" pageNumber="1" rank="species" species="erectoides">E. erectoides</taxonomicName>
(SAAS 1361, SAAS 1232) c, d
<taxonomicName lsidName="E. griseocarpum" pageId="0" pageNumber="1" rank="species" species="griseocarpum">E. griseocarpum</taxonomicName>
(SAAS 951, SAAS 1328) e, f
<taxonomicName lsidName="E. rubropilosum" pageId="0" pageNumber="1" rank="species" species="rubropilosum">E. rubropilosum</taxonomicName>
(SAAS 406, SAAS 1112).
</paragraph>
</caption>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="description">
<paragraph pageId="0" pageNumber="1">Description.</paragraph>
<paragraph pageId="0" pageNumber="1">
Pileus 5-15 mm broad, bluntly conic, convex or campanulate, dry, slightly hygrophanous, greyish-brown to brown (5C2-5D2), densely covered with suberect fibrils or minutely fibrillose squamules; fibrils silvery greyish, striate from entire margin to near centre. Lamellae sinuate, ventricose, distant, up to 3.5 mm wide, moderately thick, with two tiers of lamellulae, dark grey to brownish-grey, with entire and concolorous edge. Stipe 40-60
<normalizedToken originalValue="×">x</normalizedToken>
1-2.5 mm, central, cylindrical, equal, dry, concolorous with pileus, densely covered with grey to greyish fibrils, hollow, surface dry, with a pale yellow brownish to pale brownish strigose base. Context thin, concolorous with pileus. Odour and taste not distinctive.
</paragraph>
<paragraph pageId="0" pageNumber="1">
Basidiospores (13-) 13.5-17.5
<normalizedToken originalValue="×">x</normalizedToken>
8-9.5 (-10.5)
<normalizedToken originalValue="µm">µm</normalizedToken>
(x = 15.5
<normalizedToken originalValue="±">+/-</normalizedToken>
0.5
<normalizedToken originalValue="×">x</normalizedToken>
8.8
<normalizedToken originalValue="±">+/-</normalizedToken>
0.3
<normalizedToken originalValue="µm">µm</normalizedToken>
), Q = 1.50-1.94 (Q = 1.72
<normalizedToken originalValue="±">+/-</normalizedToken>
0.03), heterodiametric, strongly angled in profile and face views with 6-9 facets, appearing nodulose, pale yellow brownish, thick-walled. Basidia 39-48
<normalizedToken originalValue="×">x</normalizedToken>
13-18
<normalizedToken originalValue="µm">µm</normalizedToken>
, subclavate or clavate, 4-spored. Aborted basidia scattered in the hymenium, often filled with dark brown amorphous cytoplasmic pigment. Lamellar trama dark brown, composed of parallel, cylindrical, heavily encrusted and thin-walled cells, 6-15
<normalizedToken originalValue="µm">µm</normalizedToken>
wide. Lamellar edge sterile. Cheilocystidia 33-90
<normalizedToken originalValue="×">x</normalizedToken>
12-33
<normalizedToken originalValue="µm">µm</normalizedToken>
, broadly ovoid to utriform (32-65
<normalizedToken originalValue="×">x</normalizedToken>
22-30
<normalizedToken originalValue="µm">µm</normalizedToken>
) or lageniform (70-90
<normalizedToken originalValue="×">x</normalizedToken>
16-20
<normalizedToken originalValue="µm">µm</normalizedToken>
), with pale brownish, intracellular pigment, slightly thick-walled. Pileipellis a trichoderm composed of clustered and suberect hyphae, walls externally encrusted with brown pigment; terminal cells 30-50 (-90)
<normalizedToken originalValue="×">x</normalizedToken>
8-15
<normalizedToken originalValue="µm">µm</normalizedToken>
, cylindrical to slightly fusoid; subpellis composed of cylindrical, encrusted hyphae, up to 20
<normalizedToken originalValue="µm">µm</normalizedToken>
broad. Stipitipellis composed of thin-walled and pale yellowish-brown encrusted hyphae; terminal cells 40-80
<normalizedToken originalValue="×">x</normalizedToken>
9-15
<normalizedToken originalValue="µm">µm</normalizedToken>
, cylindrical to slender fusoid, walls encrusted with pale yellow-brown pigment. Oleiferous hyphae absent. Clamp connections absent.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="habitat">
<paragraph pageId="0" pageNumber="1">Habitat.</paragraph>
<paragraph pageId="0" pageNumber="1">
Scattered or gregarious on soil and amongst leaf litter in broadleaf forest dominated by
<taxonomicName class="Magnoliopsida" family="Fagaceae" genus="Quercus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Quercus" order="Fagales" pageId="0" pageNumber="1" phylum="Tracheophyta" rank="genus">Quercus</taxonomicName>
or on soil amongst decaying leaves of
<taxonomicName class="Magnoliopsida" family="Betulaceae" genus="Betula" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Betula" order="Fagales" pageId="0" pageNumber="1" phylum="Tracheophyta" rank="genus">Betula</taxonomicName>
,
<taxonomicName genus="Pandus" lsidName="Pandus" pageId="0" pageNumber="1" rank="genus">Pandus</taxonomicName>
and
<taxonomicName class="Pinopsida" family="Pinaceae" genus="Abies" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Abies" order="Pinales" pageId="0" pageNumber="1" phylum="Tracheophyta" rank="genus">Abies</taxonomicName>
.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="additional collections examined">
<paragraph pageId="0" pageNumber="1">Additional collections examined.</paragraph>
<paragraph pageId="0" pageNumber="1">
CHINA. SICHUAN PROVINCE: CHINA: SICHUAN PROV. Yajiang County, Gexigou National Nature Reserve,
<geoCoordinate direction="north" orientation="latitude" precision="925" value="29.55">29°33'N</geoCoordinate>
,
<geoCoordinate direction="east" orientation="longitude" precision="925" value="100.833336">100°50'E</geoCoordinate>
, elevation ca. 2980 m, 24 July 2013, He X.L. (SAAS 945). JILIN PROV.: Antu County, Changbai Mountains,
<geoCoordinate direction="north" orientation="latitude" precision="925" value="42.166668">42°10'N</geoCoordinate>
,
<geoCoordinate direction="east" orientation="longitude" precision="925" value="127.916664">127°55'E</geoCoordinate>
, elevation ca. 750 m, 25 August 2014, He X.L. (SAAS 1361).
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="comments">
<paragraph pageId="0" pageNumber="1">Comments.</paragraph>
<paragraph pageId="0" pageNumber="1">
Morphologically,
<taxonomicName class="Agaricomycetes" family="Entolomataceae" genus="Entoloma" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Entoloma erectoides" order="Agaricales" pageId="0" pageNumber="1" phylum="Basidiomycota" rank="species" species="erectoides">Entoloma erectoides</taxonomicName>
is a member of section
<taxonomicName class="Agaricomycetes" family="Entolomataceae" genus="Dysthales" higherTaxonomySource="GBIF" kingdom="Fungi" lsidName="Dysthales" order="Agaricales" pageId="0" pageNumber="1" phylum="Basidiomycota" rank="section" section="Dysthales">Dysthales</taxonomicName>
. In literature, a few species in section
<taxonomicName class="Agaricomycetes" family="Entolomataceae" genus="Dysthales" higherTaxonomySource="GBIF" kingdom="Fungi" lsidName="Dysthales" order="Agaricales" pageId="0" pageNumber="1" phylum="Basidiomycota" rank="section" section="Dysthales">Dysthales</taxonomicName>
are described having silvery fibrils or squamules on pileus and stipe. Accordingly,
<taxonomicName lsidName="E. erectoides" pageId="0" pageNumber="1" rank="species" species="erectoides">E. erectoides</taxonomicName>
can be confused with the Argentinean
<taxonomicName lsidName="E. calileguense" pageId="0" pageNumber="1" rank="species" species="calileguense">E. calileguense</taxonomicName>
Blanco-Dios (as
<taxonomicName class="Agaricomycetes" family="Entolomataceae" genus="Pouzarella" higherTaxonomySource="CoL" kingdom="Fungi" lsidName="Pouzarella variabilis" order="Agaricales" pageId="0" pageNumber="1" phylum="Basidiomycota" rank="species" species="variabilis">Pouzarella variabilis</taxonomicName>
T.J. Baroni,
<normalizedToken originalValue="Albertó">Alberto</normalizedToken>
, Niveiro &amp; B.
<taxonomicName genus="E." lsidName="E." pageId="0" pageNumber="1" rank="genus">E.</taxonomicName>
Lechner in
<bibRefCitation author="Baroni, TJ" journalOrPublisher="Kurtziana" pageId="0" pageNumber="1" pagination="41 - 63" title="New species and records of Pouzarella (Agaricomyetes, Entolomataceae) from northern Argentina." volume="37" year="2012">Baroni et al. 2012</bibRefCitation>
). Both species have silvery greyish-brown erect fibrils or squamules on the pileus and stipe. However, the latter species is easily separated by the much larger basidiospores (16-23.5
<normalizedToken originalValue="×">x</normalizedToken>
10-12
<normalizedToken originalValue="μm">μm</normalizedToken>
,
<bibRefCitation author="Baroni, TJ" journalOrPublisher="Kurtziana" pageId="0" pageNumber="1" pagination="41 - 63" title="New species and records of Pouzarella (Agaricomyetes, Entolomataceae) from northern Argentina." volume="37" year="2012">Baroni et al. 2012</bibRefCitation>
).
<taxonomicName lsidName="E. farinosum" pageId="0" pageNumber="1" rank="species" species="farinosum">E. farinosum</taxonomicName>
(Largent &amp; Skye Moore) Noordel. &amp; G.M. Gates, reported from Australia, differs by globose or nearly napiform cheilocystidia (
<bibRefCitation author="Largent, DL" journalOrPublisher="The Korean Journal of Mycology" pageId="0" pageNumber="1" url="https://doi.org/10.5248/117.435" year="2011">Largent et al. 2011</bibRefCitation>
). In addition, this taxon is separated from
<taxonomicName lsidName="E. erectoides" pageId="0" pageNumber="1" rank="species" species="erectoides">E. erectoides</taxonomicName>
by molecular evidence.
<taxonomicName lsidName="E. tenuissimum" pageId="0" pageNumber="1" rank="species" species="tenuissimum">E. tenuissimum</taxonomicName>
T.H. Li &amp; Xiao-Lan He, also recorded from China, is distinguished by the smaller and slimmer basidiomes and taxonomically is also distinctly different based on molecular analysis (
<bibRefCitation author="He, XL" journalOrPublisher="Fungal Diversity" pageId="0" pageNumber="1" pagination="227 - 243" title="Phylogeny of the subgenus Pouzarella of Entoloma s. l., with descriptions of five new species from China." url="https://doi.org/10.1007/s13225-012-0212-7" volume="58" year="2013">He et al. 2013</bibRefCitation>
).
<taxonomicName lsidName="E. argenteolanatum" pageId="0" pageNumber="1" rank="species" species="argenteolanatum">E. argenteolanatum</taxonomicName>
(T.J. Baroni, Perd.-
<normalizedToken originalValue="Sánch">Sanch</normalizedToken>
. &amp; S.A. Cantrell) Noordel. &amp; Co-David was found on decaying leaves of tropical trees and shrubs in the Dominican Republic and is characterised by denser and longer silvery fibrils and the place of discovery in the Caribbean on the island of Hispaniola (
<bibRefCitation author="Baroni, TJ" journalOrPublisher="North American Fungi" pageId="0" pageNumber="1" pagination="241 - 260" title="New species of Pouzarella (Entolomataceae, Agaricales) from the Dominican Republic and Jamaica." url="https://doi.org/10.2509/naf2008.003.00716" volume="3" year="2008">Baroni et al. 2008</bibRefCitation>
). The other grey-brown species with silvery fibrils in section
<taxonomicName genus="Versatile" lsidName="Versatile" pageId="0" pageNumber="1" rank="section" section="Versatile">Versatile</taxonomicName>
could be distinguished by the innately fibrillose pileus and stipe and colourless hymenial cystidia.
</paragraph>
<caption pageId="0" pageNumber="1">
<paragraph pageId="0" pageNumber="1">
Figure 2. Microscopic structures of
<taxonomicName lsidName="E. erectoides" pageId="0" pageNumber="1" rank="species" species="erectoides">E. erectoides</taxonomicName>
(drawn from the holotype). a Cheilocystidia b Basidiospores c Pileipellis.
</paragraph>
</caption>
</subSubSection>
</treatment>
</document>
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