166 lines
13 KiB
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166 lines
13 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/phytokeys.138.38781" ID-PMC="PMC6968977" ID-Pensoft-Pub="1314-2003-138-113" ID-Pensoft-UUID="89D20EBD4AD45B50A34E100CCA4E1757" ID-PubMed="31988606" ModsDocID="1314-2003-138-113" checkinTime="1578757496254" checkinUser="pensoft" docAuthor="Liu, Qiang, Zhou, Shi-Shun, Li, Ren, Tan, Yun-Hong, Zyaw, Myint, Xing, Xiao-Ke & Gao, Jiang-Yun" docDate="2020" docId="795AA3DAA5C75522A7DF5B43DCF792E9" docLanguage="en" docName="PhytoKeys 138: 113-123" docOrigin="PhytoKeys 138" docSource="http://dx.doi.org/10.3897/phytokeys.138.38781" docTitle="Gastrochilus arunachalensis Nageswara Rao 1992" docType="treatment" docVersion="5" id="89D20EBD4AD45B50A34E100CCA4E1757" lastPageNumber="113" masterDocId="89D20EBD4AD45B50A34E100CCA4E1757" masterDocTitle="Notes on the genus Gastrochilus (Orchidaceae) in Myanmar" masterLastPageNumber="123" masterPageNumber="113" pageNumber="113" updateTime="1668139600269" 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>Notes on the genus Gastrochilus (Orchidaceae) in Myanmar</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>Liu, Qiang</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>Zhou, Shi-Shun</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, Ren</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>Tan, Yun-Hong</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>Zyaw, Myint</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>Xing, Xiao-Ke</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>Gao, Jiang-Yun</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>PhytoKeys</mods:title>
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</mods:titleInfo>
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<mods:part>
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<mods:date>2020</mods:date>
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<mods:detail type="volume">
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<mods:number>138</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>113</mods:start>
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<mods:end>123</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/phytokeys.138.38781</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/phytokeys.138.38781</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1314-2003-138-113</mods:identifier>
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<mods:identifier type="Pensoft-UUID">89D20EBD4AD45B50A34E100CCA4E1757</mods:identifier>
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<treatment ID-GBIF-Taxon="161671971" LSID="urn:lsid:plazi:treatment:795AA3DAA5C75522A7DF5B43DCF792E9" httpUri="http://treatment.plazi.org/id/795AA3DAA5C75522A7DF5B43DCF792E9" lastPageNumber="113" pageId="0" pageNumber="113">
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<subSubSection pageId="0" pageNumber="113" type="nomenclature">
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<paragraph pageId="0" pageNumber="113">
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<taxonomicName LSID="795AA3DA-A5C7-5522-A7DF-5B43DCF792E9" authority="Nageswara Rao, (1992: 723)" authorityName="Nageswara Rao" authorityYear="1992" class="Liliopsida" family="Orchidaceae" genus="Gastrochilus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Gastrochilus arunachalensis" order="Asparagales" pageId="0" pageNumber="113" phylum="Tracheophyta" rank="species" species="arunachalensis">Gastrochilus arunachalensis Nageswara Rao, (1992: 723)</taxonomicName>
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<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Gastrochilus arunachalensis A habitat B front view of flower C front view of labellum and column D lateral view of labellum and column E sepals and petals; F. pollinarium G anther cap." figureDoi="10.3897/phytokeys.138.38781.figure1" httpUri="https://binary.pensoft.net/fig/370240" pageId="0" pageNumber="113">Figure 1</figureCitation>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="113" type="materials_examined">
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<paragraph pageId="0" pageNumber="113">Type.</paragraph>
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<paragraph pageId="0" pageNumber="113">
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INDIA. West Kameng Distinct, tropical rain forest, about 150 m a.s.l., epiphytic on tree trunks. A. N. Rao
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<emphasis italics="true" pageId="0" pageNumber="113">24220</emphasis>
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(holotype: Orchid Herbarium, Tipi!)
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="113" type="description">
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<paragraph pageId="0" pageNumber="113">Description.</paragraph>
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<paragraph pageId="0" pageNumber="113">
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Epiphytic herbs. Stem, erect, 4.0 cm long and 1.0 cm in diameter, with 3-4 leaves. Leaves nearly basal, distichous, oblong, 8.0-15.0
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<normalizedToken originalValue="×">x</normalizedToken>
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1.7-2.3 cm, slightly fleshy or leathery, apex obtuse and unequally 2-lobed. 1-4 inflorescences from base of stem, sub-umbellate, often 8-10-flowered; peduncle straight, 1-2 cm, stout, with 2 cupular sheaths. Flower yellow or yellow green, with dark brown or purplish spots. Sepals similar, oblanceolate, 6.8-7.0
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<normalizedToken originalValue="×">x</normalizedToken>
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3.2-3.5 mm, base contracted, apex obtuse. Petals oblanceolate, 6.2-6.5
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<normalizedToken originalValue="×">x</normalizedToken>
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2.3-2.5 mm, apex obtuse. Lip with an epichile and a saccate hypochile; epichile triangular, 2.5-3.0
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<normalizedToken originalValue="×">x</normalizedToken>
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5.4-6.0 mm, fleshy, adaxially glabrous, with a central cushion, margin irregularly fimbriate or erose, apex rounded; hypochile cupular, ca. 6 mm tall, ca. 4 mm in diameter, white tinged with pale yellow at bottom, outside with 3 ridges. Column ca. 4 mm, stout; rostellum deeply 2-lobed; pollinia 2, ca. 1.0 mm in diam.; stipe elongate, ca. 2.0 mm; anther cap nearly subglobose, apex narrowed into a beak. Fruit cylindrical, ridged, 5-6 cm in length, 1.2-1.4 cm in diameter.
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</paragraph>
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<caption doi="10.3897/phytokeys.138.38781.figure1" httpUri="https://binary.pensoft.net/fig/370240" pageId="0" pageNumber="113" start="Figure 1" startId="F1">
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<paragraph pageId="0" pageNumber="113">
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<emphasis bold="true" pageId="0" pageNumber="113">Figure 1.</emphasis>
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<taxonomicName authorityName="Nageswara Rao" authorityYear="1992" class="Liliopsida" family="Orchidaceae" genus="Gastrochilus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Gastrochilus arunachalensis" order="Asparagales" pageId="0" pageNumber="113" phylum="Tracheophyta" rank="species" species="arunachalensis">
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<emphasis italics="true" pageId="0" pageNumber="113">Gastrochilus arunachalensis</emphasis>
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</taxonomicName>
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<emphasis bold="true" pageId="0" pageNumber="113">A</emphasis>
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habitat
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<emphasis bold="true" pageId="0" pageNumber="113">B</emphasis>
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front view of flower
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<emphasis bold="true" pageId="0" pageNumber="113">C</emphasis>
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front view of labellum and column
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<emphasis bold="true" pageId="0" pageNumber="113">D</emphasis>
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lateral view of labellum and column
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<emphasis bold="true" pageId="0" pageNumber="113">E</emphasis>
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sepals and petals;
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<emphasis bold="true" pageId="0" pageNumber="113">F.</emphasis>
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pollinarium
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<emphasis bold="true" pageId="0" pageNumber="113">G</emphasis>
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anther cap.
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</paragraph>
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</caption>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="113" type="phenology">
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<paragraph pageId="0" pageNumber="113">Phenology.</paragraph>
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<paragraph pageId="0" pageNumber="113">Flowering occurs in October and November.</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="113" type="distribution">
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<paragraph pageId="0" pageNumber="113">Distribution and habitat.</paragraph>
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<paragraph pageId="0" pageNumber="113">
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<taxonomicName authorityName="Nageswara Rao" authorityYear="1992" class="Liliopsida" family="Orchidaceae" genus="Gastrochilus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Gastrochilus arunachalensis" order="Asparagales" pageId="0" pageNumber="113" phylum="Tracheophyta" rank="species" species="arunachalensis">
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<emphasis italics="true" pageId="0" pageNumber="113">Gastrochilus arunachalensis</emphasis>
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</taxonomicName>
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is previously known only from India and this is the first record from Myanmar (Putao county, Kachin state). It is epiphytic on the trunk of riparian trees in tropical rainforest in Myanmar or mixed deciduous tropical forest in India.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="113" type="materials_examined">
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<paragraph pageId="0" pageNumber="113">Additional specimens examined.</paragraph>
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<paragraph pageId="0" pageNumber="113">
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MYANMAR. Kachin State. Putao County, Wasadam village, tropical forest, 750 m a.s.l., epiphyte on the trunk of riparian trees, 14 Sep 2016,
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<emphasis italics="true" pageId="0" pageNumber="113">Qiang Liu 408</emphasis>
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(HITBC!). Kachin State. Putao County, Malirun village, tropical forest, 600 m a.s.l., epiphyte on the trunk of riparian trees, 29 Nov 2017,
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<emphasis italics="true" pageId="0" pageNumber="113">Yun-Hong Tan M2965</emphasis>
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(HITBC!).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="113" type="notes">
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<paragraph pageId="0" pageNumber="113">Note.</paragraph>
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<paragraph pageId="0" pageNumber="113">
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<taxonomicName authorityName="Nageswara Rao" authorityYear="1992" class="Liliopsida" family="Orchidaceae" genus="Gastrochilus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Gastrochilus arunachalensis" order="Asparagales" pageId="0" pageNumber="113" phylum="Tracheophyta" rank="species" species="arunachalensis">
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<emphasis italics="true" pageId="0" pageNumber="113">Gastrochilus arunachalensis</emphasis>
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</taxonomicName>
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is an interesting species that was only known from the type specimen until recently, the key morphological characters of flowers being hard to interpret (
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<bibRefCitation author="Rao, AN" journalOrPublisher="Journal of Economic and Taxonomic Botany" pageId="0" pageNumber="113" pagination="723 - 726" refId="B18" refString="Rao, AN, 1992. Two new species of orchids from Arunachal Pradesh. Journal of Economic and Taxonomic Botany 16 (3): 723 - 726" title="Two new species of orchids from Arunachal Pradesh." volume="16" year="1992">Rao 1992</bibRefCitation>
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). Now that fresh material has been collected in north Myanmar, a detailed description of the species, including the leaf and flower colour, leaf apex shape and features of pollinia, anther cap and rostellum, are provided here. Morphologically, it is closely related to
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<taxonomicName lsidName="G. pechei" pageId="0" pageNumber="113" rank="species" species="pechei">
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<emphasis italics="true" pageId="0" pageNumber="113">G. pechei</emphasis>
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</taxonomicName>
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in having the sub-triangular epichile of the lip and hypochile of the lip laterally not compressed. However, it can be easily distinguished from the latter by the small stature of the plant (leaves less than 15 cm), green or yellow green flowers, oblanceolate sepals and petals, epichile triangular without central cushion (
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<bibRefCitation DOI="https://doi.org/10.5962/bhl.title.327" author="Kuntze, CEO" journalOrPublisher="Phytotaxa" pageId="0" pageNumber="113" refId="B11" refString="Kuntze, CEO, 1891. Gastrochilus. Revisio generum plantarum vascularium omnium atque cellularium multarum secundum leges nomenclaturae internationales cum enumeratione plantarum exoticarum in itinere mundi collectarum.; Pars II. / Mit erlaeuterungen von Dr. Otto Kuntze, ordentlichem, auslaendischen und Ehren-mitgliede mehrerer gelehrter Gesellschaften. part 2. Leipzig, Arthur Felix, London, 660-661. https://doi.org/10.5962/bhl.title.327" title="Gastrochilus. Revisio generum plantarum vascularium omnium atque cellularium multarum secundum leges nomenclaturae internationales cum enumeratione plantarum exoticarum in itinere mundi collectarum.; Pars II. / Mit erlaeuterungen von Dr. Otto Kuntze, ordentlichem, auslaendischen und Ehren-mitgliede mehrerer gelehrter Gesellschaften. part 2. Leipzig, Arthur Felix, London, 660 - 661." url="https://doi.org/10.5962/bhl.title.327" year="1891">Kuntze 1891</bibRefCitation>
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;
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<bibRefCitation author="Rao, AN" journalOrPublisher="Journal of Economic and Taxonomic Botany" pageId="0" pageNumber="113" pagination="723 - 726" refId="B18" refString="Rao, AN, 1992. Two new species of orchids from Arunachal Pradesh. Journal of Economic and Taxonomic Botany 16 (3): 723 - 726" title="Two new species of orchids from Arunachal Pradesh." volume="16" year="1992">Rao 1992</bibRefCitation>
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).
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |