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<document ID-DOI="http://dx.doi.org/10.3897/phytokeys.111.28136" ID-GBIF-Dataset="df076888-e09e-4d7f-a615-ef7d4d47b56e" ID-PMC="PMC6246730" ID-Pensoft-Pub="1314-2003-111-61" ID-Pensoft-UUID="22105753525B2137FE27B830FFA4FFFC" ID-PubMed="30483032" ID-Zenodo-Dep="1492974" ModsDocAuthor="" ModsDocDate="2018" ModsDocID="1314-2003-111-61" ModsDocOrigin="PhytoKeys " ModsDocTitle="Bulbophyllumchrysolabium (Orchidaceae, Epidendroideae, Malaxideae), a new species from Yunnan, China" checkinTime="1553125339903" checkinUser="pensoft" docAuthor="Li, Lin, Ye, De-Ping &amp; Zeng, Song-Jun" docDate="2018" docId="E10D8D88CF5B259F06BCC11ADE28F890" docLanguage="en" docName="PhytoKeys 111: 61-68" docOrigin="PhytoKeys 111" docSource="http://dx.doi.org/10.3897/phytokeys.111.28136" docTitle="Bulbophyllum chrysolabium L. Li &amp; D. P. Ye 2018, sp. nov." docType="treatment" docVersion="6" id="22105753525B2137FE27B830FFA4FFFC" lastPageNumber="65" masterDocId="22105753525B2137FE27B830FFA4FFFC" masterDocTitle="Bulbophyllum chrysolabium (Orchidaceae, Epidendroideae, Malaxideae), a new species from Yunnan, China" masterLastPageNumber="68" masterPageNumber="61" pageNumber="62" updateTime="1668139088070" updateUser="ExternalLinkService">
<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo>
<mods:title>Bulbophyllum chrysolabium (Orchidaceae, Epidendroideae, Malaxideae), a new species from Yunnan, China</mods:title>
</mods:titleInfo>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Li, Lin</mods:namePart>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Ye, De-Ping</mods:namePart>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Zeng, Song-Jun</mods:namePart>
</mods:name>
<mods:typeOfResource>text</mods:typeOfResource>
<mods:relatedItem type="host">
<mods:titleInfo>
<mods:title>PhytoKeys</mods:title>
</mods:titleInfo>
<mods:part>
<mods:date>2018</mods:date>
<mods:detail type="volume">
<mods:number>111</mods:number>
</mods:detail>
<mods:extent unit="page">
<mods:start>61</mods:start>
<mods:end>68</mods:end>
</mods:extent>
</mods:part>
</mods:relatedItem>
<mods:location>
<mods:url>http://dx.doi.org/10.3897/phytokeys.111.28136</mods:url>
</mods:location>
<mods:classification>journal article</mods:classification>
<mods:identifier type="DOI">http://dx.doi.org/10.3897/phytokeys.111.28136</mods:identifier>
<mods:identifier type="Pensoft-Pub">1314-2003-111-61</mods:identifier>
<mods:identifier type="Pensoft-UUID">22105753525B2137FE27B830FFA4FFFC</mods:identifier>
<mods:identifier type="Zenodo-Dep">1492974</mods:identifier>
</mods:mods>
<treatment ID-GBIF-Taxon="154472547" LSID="urn:lsid:plazi:treatment:E10D8D88CF5B259F06BCC11ADE28F890" httpUri="http://treatment.plazi.org/id/E10D8D88CF5B259F06BCC11ADE28F890" lastPageId="4" lastPageNumber="65" pageId="1" pageNumber="62">
<subSubSection pageId="1" pageNumber="62" type="nomenclature">
<paragraph pageId="1" pageNumber="62">
<taxonomicName LSID="922D1087-8562-552A-865A-AC290C5D5B98" authority="L. Li &amp; D. P. Ye" authorityName="L. Li &amp; D. P. Ye" authorityYear="2018" class="Liliopsida" family="Orchidaceae" genus="Bulbophyllum" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Bulbophyllum chrysolabium" order="Asparagales" pageId="1" pageNumber="62" phylum="Tracheophyta" rank="species" species="chrysolabium" status="sp. nov.">Bulbophyllum chrysolabium L. Li &amp; D.P. Ye</taxonomicName>
<taxonomicNameLabel pageId="1" pageNumber="62">sp. nov.</taxonomicNameLabel>
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Bulbophyllum chrysolabium. A Habit B Flower, lateral view C Flower, frontal view D Dorsal sepal, petals and lateral sepals, adaxial view E Lip, lateral view F Lip, ventral view G Pollinia H Operculum, ventral view I Column, ventral view J Column and lip, lateral view. Scale bars: 2 cm (A), 2 mm (B-D), 1 mm (E-F, I-J), 0.2 mm (G-H). Drawn by Yun-Xiao Liu." figureDoi="10.3897/phytokeys.111.28136.figure1" httpUri="https://binary.pensoft.net/fig/242208" pageId="1" pageNumber="62">Figures 1</figureCitation>
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Bulbophyllum chrysolabium. A Habitat B Inflorescences C Close-up of inflorescence D Flower, lateral view showing floral bract E Flower, frontal view F Dorsal sepal, petal and lateral sepal, abaxial view G Lip, ventral view H Column and lip, lateral view. Scale bars, 1 mm (G), 2 mm (D-F, H)." figureDoi="10.3897/phytokeys.111.28136.figure2" httpUri="https://binary.pensoft.net/fig/242209" pageId="1" pageNumber="62">, 2</figureCitation>
</paragraph>
</subSubSection>
<subSubSection lastPageId="2" lastPageNumber="63" pageId="1" pageNumber="62" type="diagnosis">
<paragraph pageId="1" pageNumber="62">Diagnosis.</paragraph>
<paragraph lastPageId="2" lastPageNumber="63" pageId="1" pageNumber="62">
<taxonomicName authorityName="L. Li &amp; D. P. Ye" authorityYear="2018" class="Liliopsida" family="Orchidaceae" genus="Bulbophyllum" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Bulbophyllum chrysolabium" order="Asparagales" pageId="1" pageNumber="62" phylum="Tracheophyta" rank="species" species="chrysolabium">
<emphasis italics="true" pageId="1" pageNumber="62">Bulbophyllum chrysolabium</emphasis>
</taxonomicName>
is distinguished from all known congeners by having the following unique combination of features: obliquely broadly-based triangular petals with a long filiform apex; lip densely glandular papillose on both sides
<pageBreakToken pageId="2" pageNumber="63" start="start">and</pageBreakToken>
conspicuously ciliolate along margins; lip auricles well developed, narrowly falcate, tapering to a long sharp point at the apex; stelidia subulate and twisted inwards, slightly exceeding operculum.
</paragraph>
</subSubSection>
<subSubSection pageId="2" pageNumber="63" type="taxonomic notes">
<paragraph pageId="2" pageNumber="63">Taxonomic notes.</paragraph>
<paragraph pageId="2" pageNumber="63">
<taxonomicName authorityName="L. Li &amp; D. P. Ye" authorityYear="2018" class="Liliopsida" family="Orchidaceae" genus="Bulbophyllum" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Bulbophyllum chrysolabium" order="Asparagales" pageId="2" pageNumber="63" phylum="Tracheophyta" rank="species" species="chrysolabium">
<emphasis italics="true" pageId="2" pageNumber="63">Bulbophyllum chrysolabium</emphasis>
</taxonomicName>
appears to be related to
<taxonomicName lsidName="B. orientale" pageId="2" pageNumber="63" rank="species" species="orientale">
<emphasis italics="true" pageId="2" pageNumber="63">B. orientale</emphasis>
</taxonomicName>
Seidenf. (
<bibRefCitation author="Seidenfaden, G" journalOrPublisher="Dansk Botanisk Arkiv" pageId="4" pageNumber="65" pagination="9 - 217" refId="B7" refString="Seidenfaden, G, 1979. Orchid genera in Thailand VIII: Bulbophyllum Thou. Dansk Botanisk Arkiv 33 (3): 9 - 217" title="Orchid genera in Thailand VIII: Bulbophyllum Thou." volume="33" year="1979">Seidenfaden 1979</bibRefCitation>
: 138), especially in narrowly falcate lip auricles and twisted stelidia, but differs in distinctly longer floral bracts (almost twice as long as the pedicel and ovary); petals with long filiform apices, a rather smaller lip (ca. 2.8 mm long), significantly glandular-papillose and ciliolate at margins; stelidia slightly exceeding operculum and distinctly longer than column. With respect to filiform petals,
<taxonomicName lsidName="B. chrysolabium" pageId="2" pageNumber="63" rank="species" species="chrysolabium">
<emphasis italics="true" pageId="2" pageNumber="63">B. chrysolabium</emphasis>
</taxonomicName>
is also superficially similar to
<taxonomicName lsidName="B. morphologorum" pageId="2" pageNumber="63" rank="species" species="morphologorum">
<emphasis italics="true" pageId="2" pageNumber="63">B. morphologorum</emphasis>
</taxonomicName>
<normalizedToken originalValue="Kräenzl">Kraeenzl</normalizedToken>
. (1908: 89), however, the latter have a fat, conical protuberance or callus on the front of the column near its base and scape much longer than rachis. In addition, it has subulate, not twisted stelidia, considerably longer than operculum; lip auricles not falcate, but rather obtuse at the apex. A detailed morphological comparison between
<taxonomicName lsidName="B. chrysolabium" pageId="2" pageNumber="63" rank="species" species="chrysolabium">
<emphasis italics="true" pageId="2" pageNumber="63">B. chrysolabium</emphasis>
</taxonomicName>
and its allied species is presented in Table
<tableCitation captionStart="Table 1" captionStartId="T1" captionText="Table 1. Diagnostic morphological characters distinguishing B. chrysolabium from its two allied species." httpUri="http://table.plazi.org/id/F4D8350075C4FFA1701FF0EA105BD4F7" pageId="2" pageNumber="63" tableUuid="F4D8350075C4FFA1701FF0EA105BD4F7">1</tableCitation>
.
</paragraph>
<caption ID-Table-UUID="F4D8350075C4FFA1701FF0EA105BD4F7" httpUri="http://table.plazi.org/id/F4D8350075C4FFA1701FF0EA105BD4F7" pageId="2" pageNumber="63" start="Table 1" startId="T1">
<paragraph pageId="2" pageNumber="63">
<emphasis bold="true" pageId="2" pageNumber="63">Table 1.</emphasis>
Diagnostic morphological characters distinguishing
<taxonomicName lsidName="B. chrysolabium" pageId="2" pageNumber="63" rank="species" species="chrysolabium">
<emphasis italics="true" pageId="2" pageNumber="63">B. chrysolabium</emphasis>
</taxonomicName>
from its two allied species.
</paragraph>
</caption>
<paragraph pageId="2" pageNumber="63">
<table pageId="2" pageNumber="63">
<tr pageId="2" pageNumber="63">
<th colspan="1" pageId="2" pageNumber="63" rowspan="1">Character</th>
<th colspan="1" pageId="2" pageNumber="63" rowspan="1">
<taxonomicName lsidName="B. chrysolabium" pageId="2" pageNumber="63" rank="species" species="chrysolabium">
<emphasis italics="true" pageId="2" pageNumber="63">B. chrysolabium</emphasis>
</taxonomicName>
</th>
<th colspan="1" pageId="2" pageNumber="63" rowspan="1">
<taxonomicName lsidName="B. morphologorum" pageId="2" pageNumber="63" rank="species" species="morphologorum">
<emphasis italics="true" pageId="2" pageNumber="63">B. morphologorum</emphasis>
</taxonomicName>
</th>
<th colspan="1" pageId="2" pageNumber="63" rowspan="1">
<taxonomicName lsidName="B. orientale" pageId="2" pageNumber="63" rank="species" species="orientale">
<emphasis italics="true" pageId="2" pageNumber="63">B. orientale</emphasis>
</taxonomicName>
</th>
</tr>
<tr pageId="2" pageNumber="63">
<td colspan="1" pageId="2" pageNumber="63" rowspan="1">Floral bract</td>
<td colspan="1" pageId="2" pageNumber="63" rowspan="1">6-6.5 mm, distinctly longer than pedicel and ovary.</td>
<td colspan="1" pageId="2" pageNumber="63" rowspan="1">4.5-5 mm, distinctly longer than pedicel and ovary.</td>
<td colspan="1" pageId="2" pageNumber="63" rowspan="1">5-6 mm, nearly as long as or slightly longer than pedicel and ovary.</td>
</tr>
<tr pageId="2" pageNumber="63">
<td colspan="1" pageId="2" pageNumber="63" rowspan="1">Scape</td>
<td colspan="1" pageId="2" pageNumber="63" rowspan="1">5-6 cm, rachis about 6.5 cm, longer than scape</td>
<td colspan="1" pageId="2" pageNumber="63" rowspan="1">10-13 cm, much longer than rachis</td>
<td colspan="1" pageId="2" pageNumber="63" rowspan="1">4-8 cm, rachis about the same length</td>
</tr>
<tr pageId="2" pageNumber="63">
<td colspan="1" pageId="2" pageNumber="63" rowspan="1">Dorsal sepal</td>
<td colspan="1" pageId="2" pageNumber="63" rowspan="1">
oblong-ovate or narrowly ovate, apex shortly aristate or apiculate, 4.5-5 mm
<normalizedToken originalValue="×">x</normalizedToken>
1.0-1.5 mm
</td>
<td colspan="1" pageId="2" pageNumber="63" rowspan="1">
ovate, apex acute, 6.5-7 mm
<normalizedToken originalValue="×">x</normalizedToken>
2.5-3 mm
</td>
<td colspan="1" pageId="2" pageNumber="63" rowspan="1">
broadly ovate, apex acute, ca. 7.0
<normalizedToken originalValue="×">x</normalizedToken>
3.5 mm,
</td>
</tr>
<tr pageId="2" pageNumber="63">
<td colspan="1" pageId="2" pageNumber="63" rowspan="1">Lateral sepals</td>
<td colspan="1" pageId="2" pageNumber="63" rowspan="1">
obliquely oblong-ovate, margins strongly involute, with the apex shortly caudate, 5.5-6 mm
<normalizedToken originalValue="×">x</normalizedToken>
2.0-2.5 mm
</td>
<td colspan="1" pageId="2" pageNumber="63" rowspan="1">
obliquely ovate-lanceolate, margins not involute, apex acute, 7.5-8.0
<normalizedToken originalValue="×">x</normalizedToken>
3.5 mm
</td>
<td colspan="1" pageId="2" pageNumber="63" rowspan="1">
obliquely ovate-lanceolate, margins not involute, apex acute, ca. 8.0
<normalizedToken originalValue="×">x</normalizedToken>
4.5 mm
</td>
</tr>
<tr pageId="2" pageNumber="63">
<td colspan="1" pageId="2" pageNumber="63" rowspan="1">Petals</td>
<td colspan="1" pageId="2" pageNumber="63" rowspan="1">apex with long filiform apices, ca. 3.0 mm long, usually contorted to spirally twisted</td>
<td colspan="1" pageId="2" pageNumber="63" rowspan="1">apex with filiform apices, ca. 1.8 mm long, not twisted</td>
<td colspan="1" pageId="2" pageNumber="63" rowspan="1">apex with cuspidate apices, ca. 0.8 mm</td>
</tr>
<tr pageId="2" pageNumber="63">
<td colspan="1" pageId="2" pageNumber="63" rowspan="1">Lip</td>
<td colspan="1" pageId="2" pageNumber="63" rowspan="1">ca. 2.8 mm long, significantly glandular-papillose and ciliolate at margins</td>
<td colspan="1" pageId="2" pageNumber="63" rowspan="1">ca. 5 mm long, not papillate or papillose at margins</td>
<td colspan="1" pageId="2" pageNumber="63" rowspan="1">ca. 6 mm long, somewhat papillate at margins, not ciliolate</td>
</tr>
<tr pageId="2" pageNumber="63">
<td colspan="1" pageId="2" pageNumber="63" rowspan="1">Lip auricles</td>
<td colspan="1" pageId="2" pageNumber="63" rowspan="1">narrow falcate, long acuminate with a sharp point</td>
<td colspan="1" pageId="2" pageNumber="63" rowspan="1">not falcate, rather obtuse at apex</td>
<td colspan="1" pageId="2" pageNumber="63" rowspan="1">narrow falcate, apex apiculate and unequally 2- or 3-toothed</td>
</tr>
<tr pageId="2" pageNumber="63">
<td colspan="1" pageId="2" pageNumber="63" rowspan="1">Column callus</td>
<td colspan="1" pageId="2" pageNumber="63" rowspan="1">absent</td>
<td colspan="1" pageId="2" pageNumber="63" rowspan="1">present, conical</td>
<td colspan="1" pageId="2" pageNumber="63" rowspan="1">absent</td>
</tr>
<tr pageId="2" pageNumber="63">
<td colspan="1" pageId="2" pageNumber="63" rowspan="1">Stelidia</td>
<td colspan="1" pageId="2" pageNumber="63" rowspan="1">subulate and twisted, exceeding operculum</td>
<td colspan="1" pageId="2" pageNumber="63" rowspan="1">subulate but not twisted, exceeding operculum</td>
<td colspan="1" pageId="2" pageNumber="63" rowspan="1">subulate and twisted, as long as or shorter than operculum</td>
</tr>
</table>
</paragraph>
</subSubSection>
<subSubSection pageId="2" pageNumber="63" type="materials_examined">
<paragraph pageId="2" pageNumber="63">Type.</paragraph>
<paragraph pageId="2" pageNumber="63">CHINA. Yunnan Province. Menglian Dai, Lahu and Va Autonomous County (referred to as Menglian County), 1400-1600 m alt., 23 May 2014, L. Li 1209, (holotype, IBSC! isotype, IBK!).</paragraph>
</subSubSection>
<subSubSection lastPageId="3" lastPageNumber="64" pageId="2" pageNumber="63" type="description">
<paragraph pageId="2" pageNumber="63">Description.</paragraph>
<paragraph lastPageId="3" lastPageNumber="64" pageId="2" pageNumber="63">
Epiphytic herbs. Rhizome rigid, creeping, 2-3 mm thick. Pseudobulbs borne on rhizome at an interval of 3-5 cm, ovoid to narrowly ovoid, 2.2-3.5 cm high, base often covered with remnant fibrous sheaths. Leaf apical, single, coriaceous, oblong to linear-oblong, 12-14 cm
<normalizedToken originalValue="×">x</normalizedToken>
1.8-2.2 cm, subsessile, apex retuse or minutely notched. Inflorescences developing from base of pseudobulb, with pendulous densely many-flowered raceme; scape 5 to 6 cm long, nearly completely enveloped by 4 or 5 sterile, broadly ovate sheaths; sheath 1.5-1.8 cm long, scaled, light brownish; rachis about 6.5 cm long, with many flowers spirally arranged into a compact spike-like cylindrical raceme, opening simultaneously; floral bracts light brownish, dry papyraceous, oblong-lanceolate, ca. 6.5 mm long, almost twice as long as the pedicel and ovary, apex apiculate; pedicel and ovary ca. 3.5 mm, longitudinally slightly grooved. Flowers resupinate, not much opening, with unpleasant fishy smell. Sepals 3-6-veined, greenish-yellow, without spots or stripes. Dorsal sepal oblong-ovate or narrowly ovate, 4.5-5.0 mm
<normalizedToken originalValue="×">x</normalizedToken>
1.0-1.5 mm, 3-veined, abaxially sparsely papillate, apex shortly aristate or apiculate, often recurved. Lateral sepals obliquely oblong-ovate, 5.5-6 mm
<normalizedToken originalValue="×">x</normalizedToken>
2.0-2.5 mm, 5-6-veined, abaxially sparsely papillate, base adnate to column foot, margins strongly involute, with the apex shortly caudate, loosely adhering along the lower edges, forming an ovoid sac. Petals pale greenish-yellow, obliquely and broadly-based triangular, apex long acuminate, tapering into a long filiform or threadlike tail, usually contorted to spirally twisted, 2.0-2.2 mm
<normalizedToken originalValue="×">x</normalizedToken>
0.8-1.0 mm near the base, with a tail 2.8-3.0 mm long, margins somewhat irregularly denticulate or erose. Lip yellowish-orange or deep golden yellow, fleshy, oblong narrowly ovoid, 2.5-2.8 mm
<normalizedToken originalValue="×">x</normalizedToken>
1.3-1.5 mm, mobile on a thin ligament, recurved near the base, conspicuously auriculate at the base; disc with a longitudinal central groove, apex rounded or obtuse; auricles narrowly falcate, arching forward and gradually tapering to a long sharp point at the apex; densely glandular pap
<pageBreakToken pageId="3" pageNumber="64" start="start">illose</pageBreakToken>
on both sides and conspicuously ciliolate along margins, whitish. Column greenish-yellow, subcylindric, 2.0-2.2 mm tall; foot ca. 1.5 mm; stelidia well-developed and subulate, ca. 1.2 mm, often twisted inwards, equalling or slightly exceeding operculum, with a sharp point along the upper margin. Anther abaxially with a rounded crest, golden-yellow. Pollinia 4, the inner ones more than half as long as the outer ones.
</paragraph>
<caption ID-Zenodo-Dep="1492986" doi="10.3897/phytokeys.111.28136.figure1" httpUri="https://binary.pensoft.net/fig/242208" pageId="3" pageNumber="64" start="Figure 1" startId="F1">
<paragraph pageId="3" pageNumber="64">
<emphasis bold="true" pageId="3" pageNumber="64">Figure 1.</emphasis>
<taxonomicName class="Liliopsida" family="Orchidaceae" genus="Bulbophyllum" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Bulbophyllum chrysolabium." order="Asparagales" pageId="3" pageNumber="64" phylum="Tracheophyta" rank="species" species="chrysolabium.">
<emphasis italics="true" pageId="3" pageNumber="64">Bulbophyllum chrysolabium.</emphasis>
</taxonomicName>
<emphasis bold="true" pageId="3" pageNumber="64">A</emphasis>
Habit
<emphasis bold="true" pageId="3" pageNumber="64">B</emphasis>
Flower, lateral view
<emphasis bold="true" pageId="3" pageNumber="64">C</emphasis>
Flower, frontal view
<emphasis bold="true" pageId="3" pageNumber="64">D</emphasis>
Dorsal sepal, petals and lateral sepals, adaxial view
<emphasis bold="true" pageId="3" pageNumber="64">E</emphasis>
Lip, lateral view
<emphasis bold="true" pageId="3" pageNumber="64">F</emphasis>
Lip, ventral view
<emphasis bold="true" pageId="3" pageNumber="64">G</emphasis>
Pollinia
<emphasis bold="true" pageId="3" pageNumber="64">H</emphasis>
Operculum, ventral view
<emphasis bold="true" pageId="3" pageNumber="64">I</emphasis>
Column, ventral view
<emphasis bold="true" pageId="3" pageNumber="64">J</emphasis>
Column and lip, lateral view. Scale bars: 2 cm (
<emphasis bold="true" pageId="3" pageNumber="64">A</emphasis>
), 2 mm (
<emphasis bold="true" pageId="3" pageNumber="64">
<normalizedToken originalValue="B–D">B-D</normalizedToken>
</emphasis>
), 1 mm (
<emphasis bold="true" pageId="3" pageNumber="64">
<normalizedToken originalValue="E–F">E-F</normalizedToken>
,
<normalizedToken originalValue="I–J">I-J</normalizedToken>
</emphasis>
), 0.2 mm (
<emphasis bold="true" pageId="3" pageNumber="64">
<normalizedToken originalValue="G–H">G-H</normalizedToken>
</emphasis>
). Drawn by Yun-Xiao Liu.
</paragraph>
</caption>
</subSubSection>
<subSubSection pageId="3" pageNumber="64" type="distribution">
<paragraph pageId="3" pageNumber="64">Distribution and habitat.</paragraph>
<paragraph pageId="3" pageNumber="64">So far known only from Menglian County in southwest Yunnan Province, China, growing as an epiphyte amongst mosses on the tree trunk near the edge of river in rather exposed circumstances in subtropical evergreen broad-leaved forest.</paragraph>
</subSubSection>
<subSubSection pageId="3" pageNumber="64" type="etymology">
<paragraph pageId="3" pageNumber="64">Etymology.</paragraph>
<paragraph pageId="3" pageNumber="64">
The specific epithet comes from the Ancient Greek word
<emphasis italics="true" pageId="3" pageNumber="64">chryso</emphasis>
-
<normalizedToken originalValue="“golden”">&quot;golden&quot;</normalizedToken>
and the Latin derived
<emphasis italics="true" pageId="3" pageNumber="64">labium</emphasis>
<normalizedToken originalValue="“labellum”">&quot;labellum&quot;</normalizedToken>
, referring to the golden-yellow lip of the type.
</paragraph>
</subSubSection>
<subSubSection pageId="3" pageNumber="64" type="phenology">
<paragraph pageId="3" pageNumber="64">Phenology.</paragraph>
<paragraph pageId="3" pageNumber="64">Flowering observed in December.</paragraph>
</subSubSection>
<subSubSection lastPageId="4" lastPageNumber="65" pageId="3" pageNumber="64" type="conservation status">
<paragraph pageId="3" pageNumber="64">Conservation status.</paragraph>
<paragraph lastPageId="4" lastPageNumber="65" pageId="3" pageNumber="64">
<taxonomicName authorityName="L. Li &amp; D. P. Ye" authorityYear="2018" class="Liliopsida" family="Orchidaceae" genus="Bulbophyllum" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Bulbophyllum chrysolabium" order="Asparagales" pageId="3" pageNumber="64" phylum="Tracheophyta" rank="species" species="chrysolabium">
<emphasis italics="true" pageId="3" pageNumber="64">Bulbophyllum chrysolabium</emphasis>
</taxonomicName>
is known only from its type locality, where it is represented by a single population of about 30-50 individual plants or clumps. The extent of occurrence (EOO) of the species cannot be estimated and its area of occupancy (AOO) is estimated to be 4 km2, which falls within the thresholds for Critically Endangered under criterion B2. Additional individuals of this species may yet be found in adjacent areas as the investigation continues. The location is relatively inaccessible to casual hikers and the potential for habitat destruction is limited, but it is not in a national reserve or other kinds of protected areas. Fortunately, a few
<pageBreakToken pageId="4" pageNumber="65" start="start">individuals</pageBreakToken>
were brought into cultivation at SCBG. Although there is limited data to determine its actual distribution range, biology and threats, the current available information (one location in a non-protected area and AOO less than 10 km2) led us to assign a preliminary status of Critically Endangered [CR B2ab(iii)] according to the IUCN Red List Categories and Criteria (
<bibRefCitation author="IUCN" journalOrPublisher="Taiwania" pageId="4" pageNumber="65" publicationUrl="http://cmsdocs.s3.amazonaws.com/RedListGuidelines.pdf" refId="B4" refString="IUCN, 2017. Guidelines for Using the IUCN Red List Categories and Criteria. version 13. Prepared by the Standards and Petitions Subcommittee of the IUCN Species Survival Commission. http://cmsdocs.s3.amazonaws.com/RedListGuidelines.pdf" title="Guidelines for Using the IUCN Red List Categories and Criteria. version 13. Prepared by the Standards and Petitions Subcommittee of the IUCN Species Survival Commission." url="http://cmsdocs.s3.amazonaws.com/RedListGuidelines.pdf" year="2017">IUCN 2017</bibRefCitation>
).
</paragraph>
<caption ID-Zenodo-Dep="1492988" doi="10.3897/phytokeys.111.28136.figure2" httpUri="https://binary.pensoft.net/fig/242209" pageId="4" pageNumber="65" start="Figure 2" startId="F2">
<paragraph pageId="4" pageNumber="65">
<emphasis bold="true" pageId="4" pageNumber="65">Figure 2.</emphasis>
<taxonomicName class="Liliopsida" family="Orchidaceae" genus="Bulbophyllum" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Bulbophyllum chrysolabium." order="Asparagales" pageId="4" pageNumber="65" phylum="Tracheophyta" rank="species" species="chrysolabium.">
<emphasis italics="true" pageId="4" pageNumber="65">Bulbophyllum chrysolabium.</emphasis>
</taxonomicName>
<emphasis bold="true" pageId="4" pageNumber="65">A</emphasis>
Habitat
<emphasis bold="true" pageId="4" pageNumber="65">B</emphasis>
Inflorescences
<emphasis bold="true" pageId="4" pageNumber="65">C</emphasis>
Close-up of inflorescence
<emphasis bold="true" pageId="4" pageNumber="65">D</emphasis>
Flower, lateral view showing floral bract
<emphasis bold="true" pageId="4" pageNumber="65">E</emphasis>
Flower, frontal view
<emphasis bold="true" pageId="4" pageNumber="65">F</emphasis>
Dorsal sepal, petal and lateral sepal, abaxial view
<emphasis bold="true" pageId="4" pageNumber="65">G</emphasis>
Lip, ventral view
<emphasis bold="true" pageId="4" pageNumber="65">H</emphasis>
Column and lip, lateral view. Scale bars, 1 mm (
<emphasis bold="true" pageId="4" pageNumber="65">G</emphasis>
), 2 mm (
<emphasis bold="true" pageId="4" pageNumber="65">
<normalizedToken originalValue="D–F">D-F</normalizedToken>
, H
</emphasis>
).
</paragraph>
</caption>
</subSubSection>
</treatment>
</document>
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