treatments-xml/data/31/E7/41/31E74181E7D4596BB410A2B929B9262F.xml

<document ID-DOI="http://dx.doi.org/10.3897/phytokeys.215.91458" ID-Pensoft-Pub="1314-2003-215-107" ID-Pensoft-UUID="C9E1A1E7C6DF52B3BD3FB876B1A2EDB9" ModsDocID="1314-2003-215-107" checkinTime="1671543206926" checkinUser="pensoft" docAuthor="Chantanaorrapint, Amonrat &amp; Chantanaorrapint, Sahut" docDate="2022" docId="31E74181E7D4596BB410A2B929B9262F" docLanguage="en" docName="PhytoKeys 215: 107-115" docOrigin="PhytoKeys 215" docPubDate="2022-12-19" docSource="http://dx.doi.org/10.3897/phytokeys.215.91458" docTitle="Aphyllorchis periactinantha A. Chantanaorr. &amp; Chantanaorr. 2022, sp. nov." docType="treatment" docVersion="1" id="C9E1A1E7C6DF52B3BD3FB876B1A2EDB9" lastPageNumber="107" masterDocId="C9E1A1E7C6DF52B3BD3FB876B1A2EDB9" masterDocTitle="Aphyllorchis periactinantha (Orchidaceae, Neottieae), a new mycoheterotrophic species from peninsular Thailand" masterLastPageNumber="115" masterPageNumber="107" pageNumber="107" updateTime="1671543206926" updateUser="pensoft">
<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo>
<mods:title>Aphyllorchis periactinantha (Orchidaceae, Neottieae), a new mycoheterotrophic species from peninsular Thailand</mods:title>
</mods:titleInfo>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Chantanaorrapint, Amonrat</mods:namePart>
<mods:affiliation>Faculty of Natural Resources, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Chantanaorrapint, Sahut</mods:namePart>
<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0002-9739-0994</mods:nameIdentifier>
<mods:affiliation>Faculty of Natural Resources, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand</mods:affiliation>
<mods:nameIdentifier type="email">sahut.c@psu.ac.th</mods:nameIdentifier>
</mods:name>
<mods:typeOfResource>text</mods:typeOfResource>
<mods:relatedItem type="host">
<mods:titleInfo>
<mods:title>PhytoKeys</mods:title>
</mods:titleInfo>
<mods:part>
<mods:date>2022</mods:date>
<mods:detail type="pubDate">
<mods:number>2022-12-19</mods:number>
</mods:detail>
<mods:detail type="volume">
<mods:number>215</mods:number>
</mods:detail>
<mods:extent unit="page">
<mods:start>107</mods:start>
<mods:end>115</mods:end>
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<mods:location>
<mods:url>http://dx.doi.org/10.3897/phytokeys.215.91458</mods:url>
</mods:location>
<mods:classification>journal article</mods:classification>
<mods:identifier type="DOI">http://dx.doi.org/10.3897/phytokeys.215.91458</mods:identifier>
<mods:identifier type="Pensoft-Pub">1314-2003-215-107</mods:identifier>
<mods:identifier type="Pensoft-UUID">C9E1A1E7C6DF52B3BD3FB876B1A2EDB9</mods:identifier>
</mods:mods>
<treatment LSID="urn:lsid:plazi:treatment:31E74181E7D4596BB410A2B929B9262F" httpUri="http://treatment.plazi.org/id/31E74181E7D4596BB410A2B929B9262F" lastPageNumber="107" pageId="0" pageNumber="107">
<subSubSection pageId="0" pageNumber="107" type="nomenclature">
<paragraph pageId="0" pageNumber="107">
<taxonomicName LSID="31E74181-E7D4-596B-B410-A2B929B9262F" authority="A. Chantanaorr. &amp; Chantanaorr." authorityName="A. Chantanaorr. &amp; Chantanaorr." authorityYear="2022" class="Liliopsida" family="Orchidaceae" genus="Aphyllorchis" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Aphyllorchis periactinantha" order="Asparagales" pageId="0" pageNumber="107" phylum="Tracheophyta" rank="species" species="periactinantha" status="sp. nov.">Aphyllorchis periactinantha A.Chantanaorr. &amp; Chantanaorr.</taxonomicName>
<taxonomicNameLabel pageId="0" pageNumber="107">sp. nov.</taxonomicNameLabel>
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="107" type="description">
<paragraph pageId="0" pageNumber="107">
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Aphyllorchis periactinantha A. Chantanaorr. &amp; Chantanaorr. A flower, lateral view B flower, top view C floral bract D column and labellum, side view E dorsal sepal F, G lateral sepals H, I petals J labellum K column and anther cap in ventral view L, M anther caps. Drawn by S. Chantanaorrapint." figureDoi="10.3897/phytokeys.215.91458.figure2" httpUri="https://binary.pensoft.net/fig/784212" pageId="0" pageNumber="107">Figs 2</figureCitation>
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Aphyllorchis periactinantha A. Chantanaorr. &amp; Chantanaorr. in situ A habit B inflorescence C flower in front view D flower in oblique view with stingless bee (Tetragonula sp.) E column in ventral view F immature fruits G rhizome and roots A-E, G photographed by S. Chantanaorrapint F by C. Leeratiwong." figureDoi="10.3897/phytokeys.215.91458.figure3" httpUri="https://binary.pensoft.net/fig/784213" pageId="0" pageNumber="107">, 3</figureCitation>
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="107" type="diagnosis">
<paragraph pageId="0" pageNumber="107">Diagnosis.</paragraph>
<paragraph pageId="0" pageNumber="107">
Similar to 
<taxonomicName lsidName="A. anomala" pageId="0" pageNumber="107" rank="species" species="anomala">
<emphasis italics="true" pageId="0" pageNumber="107">A. anomala</emphasis>
</taxonomicName>
, but differs in having a concave labellum without purple veins, acute at the apex, and a semicircular rostellum.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="107" type="materials_examined">
<paragraph pageId="0" pageNumber="107">
<typeStatus>Type</typeStatus>
.
</paragraph>
<paragraph pageId="0" pageNumber="107">
<materialsCitation collectingDate="2020-12-26" collectorName="S. Chantanaorrapint, A. Chantanaorrapint" country="Thailand" elevation="100" latitude="6.9955306" location="Ton Nga Chang" longLatPrecision="1" longitude="100.15016" specimenCount="1" stateProvince="Songkhla Province" typeStatus="holotype">
<collectingCountry name="Thailand">Thailand</collectingCountry>
. 
<collectingRegion country="Thailand" name="Songkhla">Songkhla Province</collectingRegion>
: 
<location LSID="urn:lsid:plazi:treatment:31E74181E7D4596BB410A2B929B9262F:7AFE371A34F5030E013B025937B04122" country="Thailand" latitude="6.9955306" longLatPrecision="1" longitude="100.15016" name="Ton Nga Chang" stateProvince="Songkhla Province">Ton Nga Chang</location>
wildlife sanctuary, ca. 
<quantity metricMagnitude="2" metricUnit="m" metricValue="1.0" unit="m" value="100.0">
<elevation metricMagnitude="2" metricUnit="m" metricValue="1.0" unit="m" value="100.0">100 m</elevation>
</quantity>
, 
<geoCoordinate degrees="06" direction="north" minutes="59" orientation="latitude" precision="1" seconds="43.91" value="6.9955306">06°59'43.91&quot;N</geoCoordinate>
, 
<geoCoordinate degrees="100" direction="east" minutes="09" orientation="longitude" precision="1" seconds="00.57" value="100.15016">100°09'00.57&quot;E</geoCoordinate>
, 
<collectingDate value="2020-12-26">26 December 2020</collectingDate>
, 
<emphasis italics="true" pageId="0" pageNumber="107">
<collectorName>S. Chantanaorrapint</collectorName>
&amp; 
<collectorName>A. Chantanaorrapint</collectorName>
3109
</emphasis>
(
<typeStatus>holotype</typeStatus>
: BKF!; isotype: PSU! [PSU00019495])
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="107" type="description">
<paragraph pageId="0" pageNumber="107">Description.</paragraph>
<paragraph pageId="0" pageNumber="107">
Terrestrial, achlorophyllous herbs, with a suberect rhizome and an erect flowering shoot. 
<emphasis bold="true" italics="true" pageId="0" pageNumber="107">Rhizomes</emphasis>
pale brown, producing numerous horizontal roots; roots fleshy, 3.5-6.5 mm in diameter, pale brown, glabrous. 
<emphasis bold="true" italics="true" pageId="0" pageNumber="107">Flowering shoots</emphasis>
70-150 cm tall, up to 9 mm in diameter at base, unbranched whitish or pale yellow, marked with purple stripes or spots, with 5-9 membranous sheaths at base and 10-15 scales above. 
<emphasis bold="true" italics="true" pageId="0" pageNumber="107">Inflorescence</emphasis>
racemose, terminal, 15-30 cm long, up to 32 flowers; rachis glabrous. 
<emphasis bold="true" italics="true" pageId="0" pageNumber="107">Floral bracts</emphasis>
reflexed, lanceolate to linear-lanceolate, acute to acuminate, 16.5-21.5 
<normalizedToken originalValue="×">x</normalizedToken>
4.5-5.5 mm, whitish or pale yellow with purple stripes. 
<emphasis bold="true" italics="true" pageId="0" pageNumber="107">Flowers</emphasis>
opening widely, creamy white to pale yellow. 
<emphasis bold="true" italics="true" pageId="0" pageNumber="107">Sepals</emphasis>
creamy white to pale yellow, minutely tuberculate and sparsely pubescent on the adaxial surface, scattered with purple stripes or dots, concave, margins entire, apex acute; dorsal sepal narrowly ovate to lanceolate, 17.5-19.6 
<normalizedToken originalValue="×">x</normalizedToken>
4.3-5.2 mm; lateral sepal obliquely narrow-ovate to obliquely lanceolate, 16.8-19.0 
<normalizedToken originalValue="×">x</normalizedToken>
4.2-5.1 mm. 
<emphasis bold="true" italics="true" pageId="0" pageNumber="107">Petals</emphasis>
creamy white to pale yellow with purple veins, oblong-lanceolate, 16.0-16.5 
<normalizedToken originalValue="×">x</normalizedToken>
3.9-4.3 mm, slightly falcate at apex, base obtuse to subtruncate, apex acute, margin entire or minutely erose and slightly recurved backward in the middle, keeled adaxially along midrib. 
<emphasis bold="true" italics="true" pageId="0" pageNumber="107">Labellum</emphasis>
creamy white to pale yellow, simple and not divided into hypochile and epichile, oblong-lanceolate, 16.2-17.0 
<normalizedToken originalValue="×">x</normalizedToken>
3.8-4.5 mm, more or less folded along a midrib, concave at the basal part, apex acute, margin nearly entire or minutely erose, abaxial and adaxial surfaces nearly smooth. 
<emphasis bold="true" italics="true" pageId="0" pageNumber="107">Column</emphasis>
slender, subclavate, yellow at the apical third and purple at the proximal two thirds, gently curved throughout its entire length, 10-12 mm long, without column wing or a hook-shaped appendage on ventral side; clinandrium with a rather large central dome-like outgrowth; stigma more or less ovate in outline, shallowly bilobed at the lower margin; anther cap ovoid in outline, 2.0-2.2 mm long, apex obtuse; pollinia 2, soft and mealy, without caudicles. 
<emphasis bold="true" italics="true" pageId="0" pageNumber="107">Pedicel with ovary</emphasis>
slightly bent upwards or downwards, 18.5-23.5 mm long, ca. 2 mm in diameter, dark purple, pubescent, bearing sparse glandular hairs. 
<emphasis bold="true" italics="true" pageId="0" pageNumber="107">Capsules</emphasis>
(immature) pendulous, claviform or fusiform, 5.5-6.5 cm long, 0.7-1.1 cm diameter. 
<emphasis bold="true" italics="true" pageId="0" pageNumber="107">Seeds</emphasis>
not seen.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="107" type="materials_examined">
<paragraph pageId="0" pageNumber="107">
<typeStatus isOtherTypeStatus="true">Additional specimens examined</typeStatus>
(
<typeStatus>paratypes</typeStatus>
).
</paragraph>
<paragraph pageId="0" pageNumber="107">
<materialsCitation collectingDate="2017-10-22" collectingDateMax="2021-12-07" collectingDateMin="2017-10-22" collectorName="S. Chantanaorrapint, A. Chantanaorrapint, O. Suwanmala, C. Leeratiwong" country="Thailand" county="Ban Yang Ko Community Forest" elevation="100" latitude="6.9955306" location="Songkla Province" longLatPrecision="1" longitude="100.15016" municipality="Ton Nga Chang Wildlife Sanctuary" specimenCount="1">
<collectingCountry name="Thailand">Thailand</collectingCountry>
. 
<location LSID="urn:lsid:plazi:treatment:31E74181E7D4596BB410A2B929B9262F:C05F5E8205DB6498CDCFC3251DE89DD8" country="Thailand" county="Ban Yang Ko Community Forest" latitude="6.9955306" longLatPrecision="1" longitude="100.15016" municipality="Ton Nga Chang Wildlife Sanctuary" name="Songkla Province">Songkla Province</location>
: 
<collectingMunicipality>Ton Nga Chang Wildlife Sanctuary</collectingMunicipality>
, ca. 
<quantity metricMagnitude="2" metricUnit="m" metricValue="1.0" unit="m" value="100.0">
<elevation metricMagnitude="2" metricUnit="m" metricValue="1.0" unit="m" value="100.0">100 m</elevation>
</quantity>
, 
<geoCoordinate degrees="06" direction="north" minutes="59" orientation="latitude" precision="1" seconds="43.91" value="6.9955306">06°59'43.91&quot;N</geoCoordinate>
, 
<geoCoordinate degrees="100" direction="east" minutes="09" orientation="longitude" precision="1" seconds="00.57" value="100.15016">100°09'00.57&quot;E</geoCoordinate>
, 
<collectingDate value="2017-10-22">22 October 2017</collectingDate>
, 
<emphasis italics="true" pageId="0" pageNumber="107">
<collectorName>S. Chantanaorrapint</collectorName>
&amp; 
<collectorName>A. Chantanaorrapint</collectorName>
2810
</emphasis>
(PSU), 
<collectingDate value="2018-11-16">16 November 2018</collectingDate>
, 
<emphasis italics="true" pageId="0" pageNumber="107">
<collectorName>S. Chantanaorrapint</collectorName>
&amp; 
<collectorName>O. Suwanmala</collectorName>
2732
</emphasis>
(PSU); 
<collectingCounty>Ban Yang Ko Community Forest</collectingCounty>
, 
<collectingDate value="2021-12-07">7 December 2021</collectingDate>
, 
<emphasis italics="true" pageId="0" pageNumber="107">
<collectorName>C. Leeratiwong</collectorName>
21-1752
</emphasis>
(PSU)
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="107" type="phenology">
<paragraph pageId="0" pageNumber="107">Phenology.</paragraph>
<paragraph pageId="0" pageNumber="107">Flowering and fruiting observed from October to December.</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="107" type="distribution">
<paragraph pageId="0" pageNumber="107">Distribution, habitat and ecology.</paragraph>
<paragraph pageId="0" pageNumber="107">
<taxonomicName class="Liliopsida" family="Orchidaceae" genus="Aphyllorchis" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Aphyllorchis periactinantha" order="Asparagales" pageId="0" pageNumber="107" phylum="Tracheophyta" rank="species" species="periactinantha">
<emphasis italics="true" pageId="0" pageNumber="107">Aphyllorchis periactinantha</emphasis>
</taxonomicName>
is known only from two localities in Songkhla province (Fig. 
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Distribution of Aphyllorchis periactinantha A. Chantanaorr. &amp; Chantanaorr. (black circle) in Thailand." figureDoi="10.3897/phytokeys.215.91458.figure1" httpUri="https://binary.pensoft.net/fig/784210" pageId="0" pageNumber="107">1</figureCitation>
); however, it may also occur in other areas in southern Thailand with a similar vegetation type. The new species was found growing amongst leaf litter, in shade in lowland broad-leaf forest dominated by dipterocarps such as 
<taxonomicName class="Magnoliopsida" family="Dipterocarpaceae" genus="Anisoptera" kingdom="Plantae" lsidName="Anisoptera costata" order="Malvales" pageId="0" pageNumber="107" phylum="Tracheophyta" rank="species" species="costata">
<emphasis italics="true" pageId="0" pageNumber="107">Anisoptera costata</emphasis>
</taxonomicName>
Korth., 
<taxonomicName class="Magnoliopsida" family="Dipterocarpaceae" genus="Dipterocarpus" kingdom="Plantae" lsidName="Dipterocarpus kerrii" order="Malvales" pageId="0" pageNumber="107" phylum="Tracheophyta" rank="species" species="kerrii">
<emphasis italics="true" pageId="0" pageNumber="107">Dipterocarpus kerrii</emphasis>
</taxonomicName>
King, 
<taxonomicName class="Magnoliopsida" family="Dipterocarpaceae" genus="Hopea" kingdom="Plantae" lsidName="Hopea ferrea" order="Malvales" pageId="0" pageNumber="107" phylum="Tracheophyta" rank="species" species="ferrea">
<emphasis italics="true" pageId="0" pageNumber="107">Hopea ferrea</emphasis>
</taxonomicName>
Laness., 
<taxonomicName lsidName="H. odorata" pageId="0" pageNumber="107" rank="species" species="odorata">
<emphasis italics="true" pageId="0" pageNumber="107">H. odorata</emphasis>
</taxonomicName>
Roxb., and 
<taxonomicName class="Magnoliopsida" family="Dipterocarpaceae" genus="Shorea" kingdom="Plantae" lsidName="Shorea gratissima" order="Malvales" pageId="0" pageNumber="107" phylum="Tracheophyta" rank="species" species="gratissima">
<emphasis italics="true" pageId="0" pageNumber="107">Shorea gratissima</emphasis>
</taxonomicName>
(Wall. ex Kurz) Dyer, ca. 100 m above sea level. During the field surveys, we found a stingless bee (
<taxonomicName authorityName="Moure" authorityYear="1961" class="Insecta" family="Apidae" genus="Tetragonula" kingdom="Animalia" lsidName="Tetragonula" order="Hymenoptera" pageId="0" pageNumber="107" phylum="Arthropoda" rank="genus">
<emphasis italics="true" pageId="0" pageNumber="107">Tetragonula</emphasis>
</taxonomicName>
sp.) visiting the flower (Fig. 
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Aphyllorchis periactinantha A. Chantanaorr. &amp; Chantanaorr. in situ A habit B inflorescence C flower in front view D flower in oblique view with stingless bee (Tetragonula sp.) E column in ventral view F immature fruits G rhizome and roots A-E, G photographed by S. Chantanaorrapint F by C. Leeratiwong." figureDoi="10.3897/phytokeys.215.91458.figure3" httpUri="https://binary.pensoft.net/fig/784213" pageId="0" pageNumber="107">3D</figureCitation>
). However, its status as a pollinator could not be confirmed.
</paragraph>
<caption doi="10.3897/phytokeys.215.91458.figure2" httpUri="https://binary.pensoft.net/fig/784212" pageId="0" pageNumber="107" start="Figure 2" startId="F2">
<paragraph pageId="0" pageNumber="107">
<emphasis bold="true" pageId="0" pageNumber="107">Figure 2.</emphasis>
<taxonomicName class="Liliopsida" family="Orchidaceae" genus="Aphyllorchis" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Aphyllorchis periactinantha" order="Asparagales" pageId="0" pageNumber="107" phylum="Tracheophyta" rank="species" species="periactinantha">
<emphasis italics="true" pageId="0" pageNumber="107">Aphyllorchis periactinantha</emphasis>
</taxonomicName>
A.Chantanaorr. &amp; Chantanaorr. 
<emphasis bold="true" pageId="0" pageNumber="107">A</emphasis>
flower, lateral view 
<emphasis bold="true" pageId="0" pageNumber="107">B</emphasis>
flower, top view 
<emphasis bold="true" pageId="0" pageNumber="107">C</emphasis>
floral bract 
<emphasis bold="true" pageId="0" pageNumber="107">D</emphasis>
column and labellum, side view 
<emphasis bold="true" pageId="0" pageNumber="107">E</emphasis>
dorsal sepal 
<emphasis bold="true" pageId="0" pageNumber="107">F, G</emphasis>
lateral sepals 
<emphasis bold="true" pageId="0" pageNumber="107">H, I</emphasis>
petals 
<emphasis bold="true" pageId="0" pageNumber="107">J</emphasis>
labellum 
<emphasis bold="true" pageId="0" pageNumber="107">K</emphasis>
column and anther cap in ventral view 
<emphasis bold="true" pageId="0" pageNumber="107">L, M</emphasis>
anther caps. Drawn by S. Chantanaorrapint.
</paragraph>
</caption>
<caption doi="10.3897/phytokeys.215.91458.figure3" httpUri="https://binary.pensoft.net/fig/784213" pageId="0" pageNumber="107" start="Figure 3" startId="F3">
<paragraph pageId="0" pageNumber="107">
<emphasis bold="true" pageId="0" pageNumber="107">Figure 3.</emphasis>
<taxonomicName class="Liliopsida" family="Orchidaceae" genus="Aphyllorchis" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Aphyllorchis periactinantha" order="Asparagales" pageId="0" pageNumber="107" phylum="Tracheophyta" rank="species" species="periactinantha">
<emphasis italics="true" pageId="0" pageNumber="107">Aphyllorchis periactinantha</emphasis>
</taxonomicName>
A.Chantanaorr. &amp; Chantanaorr. 
<emphasis italics="true" pageId="0" pageNumber="107">in situ</emphasis>
<emphasis bold="true" pageId="0" pageNumber="107">A</emphasis>
habit 
<emphasis bold="true" pageId="0" pageNumber="107">B</emphasis>
inflorescence 
<emphasis bold="true" pageId="0" pageNumber="107">C</emphasis>
flower in front view 
<emphasis bold="true" pageId="0" pageNumber="107">D</emphasis>
<normalizedToken originalValue="flower">flower</normalizedToken>
in oblique view with stingless bee (
<taxonomicName authorityName="Moure" authorityYear="1961" class="Insecta" family="Apidae" genus="Tetragonula" kingdom="Animalia" lsidName="Tetragonula" order="Hymenoptera" pageId="0" pageNumber="107" phylum="Arthropoda" rank="genus">
<emphasis italics="true" pageId="0" pageNumber="107">Tetragonula</emphasis>
</taxonomicName>
sp.) 
<emphasis bold="true" pageId="0" pageNumber="107">E</emphasis>
column in ventral view 
<emphasis bold="true" pageId="0" pageNumber="107">F</emphasis>
immature fruits 
<emphasis bold="true" pageId="0" pageNumber="107">G</emphasis>
rhizome and roots 
<emphasis bold="true" pageId="0" pageNumber="107">A-E</emphasis>
, 
<emphasis bold="true" pageId="0" pageNumber="107">G</emphasis>
photographed by S. Chantanaorrapint 
<emphasis bold="true" pageId="0" pageNumber="107">F</emphasis>
by C. Leeratiwong.
</paragraph>
</caption>
</subSubSection>
<subSubSection pageId="0" pageNumber="107" type="etymology">
<paragraph pageId="0" pageNumber="107">Etymology.</paragraph>
<paragraph pageId="0" pageNumber="107">
Greek prefix 
<emphasis italics="true" pageId="0" pageNumber="107">peri</emphasis>
-, about, 
<emphasis italics="true" pageId="0" pageNumber="107">actis</emphasis>
, ray or radiate, and 
<emphasis italics="true" pageId="0" pageNumber="107">anthos</emphasis>
, flower, alluding to subactinomorphic flowers.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="107" type="conservation status">
<paragraph pageId="0" pageNumber="107">Conservation status.</paragraph>
<paragraph pageId="0" pageNumber="107">
This species is currently known from two subpopulations, representing two locations, which are in protected areas (Wildlife Sanctuary and community forest). One of the subpopulations is located beside a waterfall, which is a common visiting site for tourists. Therefore, habitat quality is threatened by trampling and other destructive activities potentially caused by regular visits by tourists to the area, namely the attraction of wild boars. Together, these have the potential to cause a population reduction. The other subpopulation is also somewhat disturbed by human activities such as illegal logging. Moreover, the number of mature individuals observed is fewer than 50. The extent of occurrence cannot be estimated because the species is known only from two subpopulations and its area of occupancy is estimated to be only 8 km2. 
<taxonomicName class="Liliopsida" family="Orchidaceae" genus="Aphyllorchis" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Aphyllorchis periactinantha" order="Asparagales" pageId="0" pageNumber="107" phylum="Tracheophyta" rank="species" species="periactinantha">
<emphasis italics="true" pageId="0" pageNumber="107">Aphyllorchis periactinantha</emphasis>
</taxonomicName>
is, therefore, assigned a preliminary status of Critically Endangered based on subcriterion C2a(i).
</paragraph>
</subSubSection>
</treatment>
</document>