440 lines
35 KiB
XML
440 lines
35 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/phytokeys.68.8803" ID-PMC="PMC5029129" ID-Pensoft-Pub="1314-2003-68-45" ID-Pensoft-UUID="FFA4FFA3FFADFFD5D31CEA07BA78FFC0" ID-PubMed="27698573" ID-Zenodo-Dep="142801" ModsDocID="1314-2003-68-45" checkinTime="1470228198899" checkinUser="pensoft" docAuthor="Rodda, Michele & Juhonewe, Nadhanielle Simonsson" docDate="2016" docId="58442299E1EEC6376FA151CBCC311B37" docLanguage="en" docName="PhytoKeys 68: 45-50" docOrigin="PhytoKeys 68" docPubDate="2016-08-02" docSource="http://dx.doi.org/10.3897/phytokeys.68.8803" docTitle="Hoya isabelchanae Rodda & Simonsson 2016, sp. nov." docType="treatment" docVersion="7" id="FFA4FFA3FFADFFD5D31CEA07BA78FFC0" lastPageNumber="48" masterDocId="FFA4FFA3FFADFFD5D31CEA07BA78FFC0" masterDocTitle="Hoya isabelchanae Rodda & Simonsson, a new, showy species of Hoya R. Br. (Apocynaceae, Asclepiadoideae) with pomegranate red flowers from Sulawesi, Indonesia" masterLastPageNumber="50" masterPageNumber="45" pageNumber="46" updateTime="1668141758976" updateUser="ExternalLinkService">
|
||
<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
|
||
<mods:titleInfo>
|
||
<mods:title>Hoya isabelchanae Rodda & Simonsson, a new, showy species of Hoya R. Br. (Apocynaceae, Asclepiadoideae) with pomegranate red flowers from Sulawesi, Indonesia</mods:title>
|
||
</mods:titleInfo>
|
||
<mods:name type="personal">
|
||
<mods:role>
|
||
<mods:roleTerm>Author</mods:roleTerm>
|
||
</mods:role>
|
||
<mods:namePart>Rodda, Michele</mods:namePart>
|
||
<mods:affiliation>The Herbarium, Singapore Botanic Gardens, 1 Cluny Road, 259569 Singapore</mods:affiliation>
|
||
<mods:nameIdentifier type="email">rodda.michele@gmail.com</mods:nameIdentifier>
|
||
</mods:name>
|
||
<mods:name type="personal">
|
||
<mods:role>
|
||
<mods:roleTerm>Author</mods:roleTerm>
|
||
</mods:role>
|
||
<mods:namePart>Juhonewe, Nadhanielle Simonsson</mods:namePart>
|
||
<mods:affiliation>Research affiliate at National Research Institute of Papua New Guinea; PO Box 1 - 524, Ukarumpa, EHP 444, Papua New Guinea</mods:affiliation>
|
||
</mods:name>
|
||
<mods:typeOfResource>text</mods:typeOfResource>
|
||
<mods:relatedItem type="host">
|
||
<mods:titleInfo>
|
||
<mods:title>PhytoKeys</mods:title>
|
||
</mods:titleInfo>
|
||
<mods:part>
|
||
<mods:date>2016</mods:date>
|
||
<mods:detail type="pubDate">
|
||
<mods:number>2016-08-02</mods:number>
|
||
</mods:detail>
|
||
<mods:detail type="volume">
|
||
<mods:number>68</mods:number>
|
||
</mods:detail>
|
||
<mods:extent unit="page">
|
||
<mods:start>45</mods:start>
|
||
<mods:end>50</mods:end>
|
||
</mods:extent>
|
||
</mods:part>
|
||
</mods:relatedItem>
|
||
<mods:location>
|
||
<mods:url>http://dx.doi.org/10.3897/phytokeys.68.8803</mods:url>
|
||
</mods:location>
|
||
<mods:classification>journal article</mods:classification>
|
||
<mods:identifier type="DOI">http://dx.doi.org/10.3897/phytokeys.68.8803</mods:identifier>
|
||
<mods:identifier type="Pensoft-Pub">1314-2003-68-45</mods:identifier>
|
||
<mods:identifier type="Pensoft-UUID">FFA4FFA3FFADFFD5D31CEA07BA78FFC0</mods:identifier>
|
||
<mods:identifier type="Zenodo-Dep">142801</mods:identifier>
|
||
</mods:mods>
|
||
<treatment ID-GBIF-Taxon="127895282" LSID="urn:lsid:plazi:treatment:58442299E1EEC6376FA151CBCC311B37" httpUri="http://treatment.plazi.org/id/58442299E1EEC6376FA151CBCC311B37" lastPageId="3" lastPageNumber="48" pageId="1" pageNumber="46">
|
||
<subSubSection pageId="1" pageNumber="46" type="nomenclature">
|
||
<paragraph pageId="1" pageNumber="46">
|
||
<taxonomicName LSID="58442299-E1EE-C637-6FA1-51CBCC311B37" authority="Rodda & Simonsson" authorityName="Rodda & Simonsson" authorityYear="2016" class="Magnoliopsida" family="Apocynaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya isabelchanae" order="Gentianales" pageId="1" pageNumber="46" phylum="Tracheophyta" rank="species" species="isabelchanae" status="sp. nov.">Hoya isabelchanae Rodda & Simonsson</taxonomicName>
|
||
<taxonomicNameLabel pageId="1" pageNumber="46">sp. nov.</taxonomicNameLabel>
|
||
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Hoya isabelchanae photographed in cultivation in Thailand (reference specimen M. Rodda MR 573, SING). A Branch and inflorescence, side view B Inflorescence, from underneath C A single flower, front view D A single flower, lateral view E Corolla from underneath with calyx removed F Calyx G Anther H Pollinarium. (Photographs by M. Rodda)." figureDoi="10.3897/phytokeys.68.8803.figure1" httpUri="https://binary.pensoft.net/fig/97898" pageId="1" pageNumber="46">Figs 1</figureCitation>
|
||
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Leaves of Hoya isabelchanae photographed in cultivation in Singapore (reference specimen M. Rodda MR 573, SING). A Larger leaf, from above B Larger leaf, from underneath C Smaller leaf, from above D Smaller leaf, from underneath (Photographs by M. Rodda)." figureDoi="10.3897/phytokeys.68.8803.figure2" httpUri="https://binary.pensoft.net/fig/97899" pageId="1" pageNumber="46">, 2</figureCitation>
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="1" pageNumber="46" type="diagnosis">
|
||
<paragraph pageId="1" pageNumber="46">Diagnosis.</paragraph>
|
||
<paragraph pageId="1" pageNumber="46">
|
||
Among Sulawesi
|
||
<taxonomicName class="Magnoliopsida" family="Asclepiadaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya" order="Gentianales" pageId="1" pageNumber="46" phylum="Tracheophyta" rank="genus">
|
||
<emphasis italics="true" pageId="1" pageNumber="46">Hoya</emphasis>
|
||
</taxonomicName>
|
||
species similar to
|
||
<taxonomicName authorityName="Kleijn & Donkelaar" authorityYear="2001" class="Magnoliopsida" family="Asclepiadaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya brevialata" order="Gentianales" pageId="1" pageNumber="46" phylum="Tracheophyta" rank="species" species="brevialata">
|
||
<emphasis italics="true" pageId="1" pageNumber="46">Hoya brevialata</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName authorityName="Kleijn & Donkelaar" authorityYear="2001" class="Magnoliopsida" family="Asclepiadaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya pallilimba" order="Gentianales" pageId="1" pageNumber="46" phylum="Tracheophyta" rank="species" species="pallilimba">
|
||
<emphasis italics="true" pageId="1" pageNumber="46">Hoya pallilimba</emphasis>
|
||
</taxonomicName>
|
||
in habit (prostrate and pendant epiphyte), lamina shape (convex round to elliptic) and inflorescence type (positively geotropic, convex) but separated because both
|
||
<taxonomicName authorityName="Kleijn & Donkelaar" authorityYear="2001" class="Magnoliopsida" family="Asclepiadaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya brevialata" order="Gentianales" pageId="1" pageNumber="46" phylum="Tracheophyta" rank="species" species="brevialata">
|
||
<emphasis italics="true" pageId="1" pageNumber="46">Hoya brevialata</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName authorityName="Kleijn & Donkelaar" authorityYear="2001" class="Magnoliopsida" family="Asclepiadaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya pallilimba" order="Gentianales" pageId="1" pageNumber="46" phylum="Tracheophyta" rank="species" species="pallilimba">
|
||
<emphasis italics="true" pageId="1" pageNumber="46">Hoya pallilimba</emphasis>
|
||
</taxonomicName>
|
||
have smaller flowers (c. 5 vs. 8-10 mm in diameter in
|
||
<taxonomicName authorityName="Rodda & Simonsson" authorityYear="2016" class="Magnoliopsida" family="Asclepiadaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya isabelchanae" order="Gentianales" pageId="1" pageNumber="46" phylum="Tracheophyta" rank="species" species="isabelchanae">
|
||
<emphasis italics="true" pageId="1" pageNumber="46">Hoya isabelchanae</emphasis>
|
||
</taxonomicName>
|
||
) with a finely pubescent corolla (vs. setose corolla in
|
||
<taxonomicName authorityName="Rodda & Simonsson" authorityYear="2016" class="Magnoliopsida" family="Asclepiadaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya isabelchanae" order="Gentianales" pageId="1" pageNumber="46" phylum="Tracheophyta" rank="species" species="isabelchanae">
|
||
<emphasis italics="true" pageId="1" pageNumber="46">Hoya isabelchanae</emphasis>
|
||
</taxonomicName>
|
||
).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="1" pageNumber="46" type="materials_examined">
|
||
<paragraph pageId="1" pageNumber="46">
|
||
<typeStatus>Type</typeStatus>
|
||
.
|
||
</paragraph>
|
||
<paragraph pageId="1" pageNumber="46">
|
||
<materialsCitation collectingDate="2002-04-23" collectingDateMax="2012-09" collectingDateMin="2002-04-23" collectorName="S. M. Scott, Royal Botanic Garden Edinburgh, C. E. Berthold" country="Indonesia" elevation="400" location="Gunung Boliohutu" specimenCount="1" stateProvince="Sulawesi" typeStatus="holotype">
|
||
<collectingCountry name="Indonesia">Indonesia</collectingCountry>
|
||
,
|
||
<collectingRegion country="Indonesia" name="Sulawesi Utara">Sulawesi</collectingRegion>
|
||
,
|
||
<collectingRegion country="Indonesia" name="Gorontalo">Gorontalo</collectingRegion>
|
||
,
|
||
<location LSID="urn:lsid:plazi:treatment:58442299E1EEC6376FA151CBCC311B37:555E382BD48EA11E01C86BDCF01D1564" country="Indonesia" name="Gunung Boliohutu" stateProvince="Sulawesi">Gunung Boliohutu</location>
|
||
,
|
||
<quantity metricMagnitude="2" metricUnit="m" metricValue="4.0" unit="m" value="400.0">
|
||
<elevation metricMagnitude="2" metricUnit="m" metricValue="4.0" unit="m" value="400.0">400 m</elevation>
|
||
</quantity>
|
||
,
|
||
<collectingDate value="2002-04-23">23 Apr 2002</collectingDate>
|
||
,
|
||
<collectorName>S.M. Scott</collectorName>
|
||
02-116, grown on at the
|
||
<collectorName>Royal Botanic Garden Edinburgh</collectorName>
|
||
(Acc no. 20021229),
|
||
<collectingDate value="2012-09">Sep 2012</collectingDate>
|
||
,
|
||
<emphasis italics="true" pageId="1" pageNumber="46">
|
||
<collectorName>C.E. Berthold</collectorName>
|
||
0013
|
||
</emphasis>
|
||
(
|
||
<typeStatus>holotype</typeStatus>
|
||
: E; isotype: SING)
|
||
</materialsCitation>
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection lastPageId="2" lastPageNumber="47" pageId="1" pageNumber="46" type="description">
|
||
<paragraph pageId="1" pageNumber="46">Description.</paragraph>
|
||
<paragraph lastPageId="2" lastPageNumber="47" pageId="1" pageNumber="46">
|
||
Epiphytic climber with white latex in all vegetative parts.
|
||
<emphasis italics="true" pageId="1" pageNumber="46">Stems</emphasis>
|
||
slender, prostrate, pendant, internodes (2)4-6(-10) cm
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
1-1.5 mm, dull green or brown, pubescent when young, rarely almost glabrous when mature;
|
||
<emphasis italics="true" pageId="1" pageNumber="46">adventitious root</emphasis>
|
||
sparsely produced along the stem and just under the nodes where they are usually paired.
|
||
<emphasis italics="true" pageId="1" pageNumber="46">Leaves</emphasis>
|
||
petiolate; petiole recurved, round, 4-6(-8)
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
ca. 1.5 mm, pale green, pubescent;
|
||
<emphasis italics="true" pageId="1" pageNumber="46">lamina</emphasis>
|
||
orbicular-ovate (to elliptic), convex, fleshy and stiff (1.5-)2-4(-7)
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
(1-)1.5-2.5 cm, base cuneate (round), apex obtuse (round), pale to mid-green green above, with or without grey spots, pubescent on young leaves only, paler green underneath, pubescent; penninerved, secondary veins obscure;
|
||
<emphasis italics="true" pageId="1" pageNumber="46">colleters</emphasis>
|
||
(one) two at each lamina base, triangular to ovate 0.2-0.4
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
0.3-0.5 mm.
|
||
<emphasis italics="true" pageId="1" pageNumber="46">Inflorescence</emphasis>
|
||
positively geotropic, pseudo-umbellate, slightly concave;
|
||
<emphasis italics="true" pageId="1" pageNumber="46">peduncle</emphasis>
|
||
(1-)2-4(-7) cm
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
1.5-2 mm in diameter, dull green to brown, pubescent when young; rachis indeterminate.
|
||
<emphasis italics="true" pageId="1" pageNumber="46">Flowers</emphasis>
|
||
10-15 each inflorescence;
|
||
<emphasis italics="true" pageId="1" pageNumber="46">pedicel</emphasis>
|
||
variable in length, the internal ones ca. 8 mm long, the external
|
||
<pageBreakToken pageId="2" pageNumber="47" start="start">ones</pageBreakToken>
|
||
2.5-3 cm
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
1.2-1.5 mm in diameter, bright green, glabrous.
|
||
<emphasis italics="true" pageId="2" pageNumber="47">Calyx</emphasis>
|
||
lobes triangular, 1.2-1.6
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
1-0.8 mm wide, apex round, light green or brownish, glabrous;
|
||
<emphasis italics="true" pageId="2" pageNumber="47">basal colleter</emphasis>
|
||
one in each calyx lobe sinus, ovate, 300-400
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
ca. 100
|
||
<normalizedToken originalValue="µm">µm</normalizedToken>
|
||
.
|
||
<emphasis italics="true" pageId="2" pageNumber="47">Corolla</emphasis>
|
||
revolute, 8-10 mm in diameter, ca. 16 mm when flattened;
|
||
<emphasis italics="true" pageId="2" pageNumber="47">corolla lobes</emphasis>
|
||
basally fused, tube 3-4 mm long, pomegranate red, from almost glabrous at the base to thinly pubescent becoming setose towards the distal part of the inner side of the tube, glabrous outside, lobes broadly ovate, 5-6
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
4-5 mm, pomegranate red with a paler edge, inside setose with a glabrous tip, outside glabrous.
|
||
<emphasis italics="true" pageId="2" pageNumber="47">Corona</emphasis>
|
||
staminal, 7-8 mm in diameter, 3-3.5 mm high;
|
||
<emphasis italics="true" pageId="2" pageNumber="47">corona lobes</emphasis>
|
||
ovate, ca. 3.5
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
2 mm, slightly convex above, underneath sulcate, inner process apex acuminate, outer process apex divided in an upper round part and a lower bifid part, upper part cream yellow with a pinkish inner process tip, lower part and bilobed outer process reddish.
|
||
<emphasis italics="true" pageId="2" pageNumber="47">Anthers</emphasis>
|
||
with apical translucent appendages, broadly triangular, c. 1.2
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
1.2 mm.
|
||
<emphasis italics="true" pageId="2" pageNumber="47">Pollinia</emphasis>
|
||
oblong, 250-300
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
130-150
|
||
<normalizedToken originalValue="µm">µm</normalizedToken>
|
||
, base obliquely truncate, apex round, sterile edge all along the outer edge of the pollinium;
|
||
<emphasis italics="true" pageId="2" pageNumber="47">corpusculum</emphasis>
|
||
oblong, 120-140
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
50-60
|
||
<normalizedToken originalValue="µm">µm</normalizedToken>
|
||
;
|
||
<emphasis italics="true" pageId="2" pageNumber="47">caudicle</emphasis>
|
||
broad, spathulate, 180-200
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
100
|
||
<normalizedToken originalValue="µm">µm</normalizedToken>
|
||
at the widest point.
|
||
<emphasis italics="true" pageId="2" pageNumber="47">Style-head</emphasis>
|
||
5 angled in cross section, c. 2.5 mm in diameter, with 5 lobes alternating with the stamens, style-head apex mamillate, ca. 1
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
0.5 mm broad at the base;
|
||
<emphasis italics="true" pageId="2" pageNumber="47">ovary</emphasis>
|
||
ovoid, shortly beaked, 1.5-1.7 mm long, each carpel ca. 0.7 mm wide at the base, pale green, glabrous.
|
||
<emphasis italics="true" pageId="2" pageNumber="47">Fruit</emphasis>
|
||
and
|
||
<emphasis italics="true" pageId="2" pageNumber="47">seed</emphasis>
|
||
not observed.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="2" pageNumber="47" type="etymology">
|
||
<paragraph pageId="2" pageNumber="47">Etymology.</paragraph>
|
||
<paragraph pageId="2" pageNumber="47">
|
||
<taxonomicName authorityName="Rodda & Simonsson" authorityYear="2016" class="Magnoliopsida" family="Asclepiadaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya isabelchanae" order="Gentianales" pageId="2" pageNumber="47" phylum="Tracheophyta" rank="species" species="isabelchanae">
|
||
<emphasis italics="true" pageId="2" pageNumber="47">Hoya isabelchanae</emphasis>
|
||
</taxonomicName>
|
||
is named after Isabel Claire Chan Yuen Ching, late daughter of Elisabeth Chan, Singaporean patron of botanical research and a gardener with an interest in
|
||
<taxonomicName class="Magnoliopsida" family="Asclepiadaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya" order="Gentianales" pageId="2" pageNumber="47" phylum="Tracheophyta" rank="genus">
|
||
<emphasis italics="true" pageId="2" pageNumber="47">Hoya</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="2" pageNumber="47" type="distribution">
|
||
<paragraph pageId="2" pageNumber="47">Distribution and ecology.</paragraph>
|
||
<paragraph pageId="2" pageNumber="47">
|
||
<taxonomicName authorityName="Rodda & Simonsson" authorityYear="2016" class="Magnoliopsida" family="Asclepiadaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya isabelchanae" order="Gentianales" pageId="2" pageNumber="47" phylum="Tracheophyta" rank="species" species="isabelchanae">
|
||
<emphasis italics="true" pageId="2" pageNumber="47">Hoya isabelchanae</emphasis>
|
||
</taxonomicName>
|
||
is only known from the base of Gunung Boliohutu, Sulawesi, where it was collected as a sterile cutting in 2002 and brought into cultivation at the Royal Botanic Garden Edinburgh where it regularly blooms in a heated greenhouse from May to October. The species was collected in primary forest and it was growing in shaded but exposed area on a decaying tree 12 m tall. A further collection is widely available in cultivation under Gerard Paul Shirley number GPS10161 and 7-35 http://www.paulshirleysucculents.nl/shop_hoyas.htm [accessed on 24 June 2016]. This accession is apparently also from Sulawesi but no further collection information is available.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="2" pageNumber="47" type="conservation status">
|
||
<paragraph pageId="2" pageNumber="47">Conservation status.</paragraph>
|
||
<paragraph pageId="2" pageNumber="47">
|
||
The only localised specimen of
|
||
<taxonomicName authorityName="Rodda & Simonsson" authorityYear="2016" class="Magnoliopsida" family="Asclepiadaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya isabelchanae" order="Gentianales" pageId="2" pageNumber="47" phylum="Tracheophyta" rank="species" species="isabelchanae">
|
||
<emphasis italics="true" pageId="2" pageNumber="47">Hoya isabelchanae</emphasis>
|
||
</taxonomicName>
|
||
is the type collection. No information is available on the extent of the wild population in Sulawesi and the threats to its habitat therefore its conservation status is Data Deficient (DD) (IUCN 2014).
|
||
<taxonomicName authorityName="Rodda & Simonsson" authorityYear="2016" class="Magnoliopsida" family="Asclepiadaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya isabelchanae" order="Gentianales" pageId="2" pageNumber="47" phylum="Tracheophyta" rank="species" species="isabelchanae">
|
||
<emphasis italics="true" pageId="2" pageNumber="47">Hoya isabelchanae</emphasis>
|
||
</taxonomicName>
|
||
is at present in cultivation at the Royal Botanic Gardens Edinburgh (type collection, acc. no. 20021229) and at the Singapore Botanic Gardens (unlocalised collection, vouchered as M. Rodda MR573).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection lastPageId="3" lastPageNumber="48" pageId="2" pageNumber="47" type="notes">
|
||
<paragraph pageId="2" pageNumber="47">Notes.</paragraph>
|
||
<paragraph lastPageId="3" lastPageNumber="48" pageId="2" pageNumber="47">
|
||
<taxonomicName authorityName="Rodda & Simonsson" authorityYear="2016" class="Magnoliopsida" family="Asclepiadaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya isabelchanae" order="Gentianales" pageId="2" pageNumber="47" phylum="Tracheophyta" rank="species" species="isabelchanae">
|
||
<emphasis italics="true" pageId="2" pageNumber="47">Hoya isabelchanae</emphasis>
|
||
</taxonomicName>
|
||
belongs to
|
||
<taxonomicName authority="Acanthostemma" class="Magnoliopsida" family="Asclepiadaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya subsp. section" order="Gentianales" pageId="2" pageNumber="47" phylum="Tracheophyta" rank="section" section="Acanthostemma">Hoya section Acanthostemma</taxonomicName>
|
||
(Blume) Kloppenburg whose members have revolute corolla lobes, bilobed outer corona lobes and pollinaria with broad, spathulate caudicles. With a corolla 8-10 mm in diameter,
|
||
<taxonomicName authorityName="Rodda & Simonsson" authorityYear="2016" class="Magnoliopsida" family="Asclepiadaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya isabelchanae" order="Gentianales" pageId="2" pageNumber="47" phylum="Tracheophyta" rank="species" species="isabelchanae">
|
||
<emphasis italics="true" pageId="2" pageNumber="47">Hoya isabelchanae</emphasis>
|
||
</taxonomicName>
|
||
is one of the largest flowered species in
|
||
<taxonomicName class="Magnoliopsida" family="Apocynaceae" genus="Acanthostemma" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="Acanthostemma" order="Gentianales" pageId="2" pageNumber="47" phylum="Tracheophyta" rank="genus">
|
||
<emphasis italics="true" pageId="2" pageNumber="47">Acanthostemma</emphasis>
|
||
</taxonomicName>
|
||
, only comparable with
|
||
<taxonomicName authorityName="Gavrus, A. L. Lamb, Emoi & Gokusing" authorityYear="2014" class="Magnoliopsida" family="Asclepiadaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya benchaii" order="Gentianales" pageId="2" pageNumber="47" phylum="Tracheophyta" rank="species" species="benchaii">
|
||
<emphasis italics="true" pageId="2" pageNumber="47">Hoya benchaii</emphasis>
|
||
</taxonomicName>
|
||
Gavrus et al. (corolla 9-12 mm in diameter)
|
||
<taxonomicName authorityName="T. Green" authorityYear="2001" class="Magnoliopsida" family="Asclepiadaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya kloppenburgii" order="Gentianales" pageId="2" pageNumber="47" phylum="Tracheophyta" rank="species" species="kloppenburgii">
|
||
<emphasis italics="true" pageId="2" pageNumber="47">Hoya kloppenburgii</emphasis>
|
||
</taxonomicName>
|
||
T.Green (10-12 mm),
|
||
<taxonomicName authorityName="Rodda & Simonsson" authorityYear="2013" baseAuthorityName="T. Green" class="Magnoliopsida" family="Asclepiadaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya rundumensis" order="Gentianales" pageId="2" pageNumber="47" phylum="Tracheophyta" rank="species" species="rundumensis">
|
||
<emphasis italics="true" pageId="2" pageNumber="47">Hoya rundumensis</emphasis>
|
||
</taxonomicName>
|
||
(T.Green) Rodda & Simonsson (7-10 mm)
|
||
<pageBreakToken pageId="3" pageNumber="48" start="start">and</pageBreakToken>
|
||
<taxonomicName authority="T. Green ssp. sigillatis" class="Magnoliopsida" family="Asclepiadaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya sigillatis subsp. sigillatis" order="Gentianales" pageId="3" pageNumber="48" phylum="Tracheophyta" rank="subSpecies" species="sigillatis" subSpecies="sigillatis">Hoya sigillatis T.Green ssp. sigillatis</taxonomicName>
|
||
(7-10 mm), all from Borneo. All these can be separated from
|
||
<taxonomicName authorityName="Rodda & Simonsson" authorityYear="2016" class="Magnoliopsida" family="Asclepiadaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya isabelchanae" order="Gentianales" pageId="3" pageNumber="48" phylum="Tracheophyta" rank="species" species="isabelchanae">
|
||
<emphasis italics="true" pageId="3" pageNumber="48">Hoya isabelchanae</emphasis>
|
||
</taxonomicName>
|
||
because their corolla is puberulent while
|
||
<taxonomicName authorityName="Rodda & Simonsson" authorityYear="2016" class="Magnoliopsida" family="Asclepiadaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya isabelchanae" order="Gentianales" pageId="3" pageNumber="48" phylum="Tracheophyta" rank="species" species="isabelchanae">
|
||
<emphasis italics="true" pageId="3" pageNumber="48">Hoya isabelchanae</emphasis>
|
||
</taxonomicName>
|
||
has a setose corolla (Fig.
|
||
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Hoya isabelchanae photographed in cultivation in Thailand (reference specimen M. Rodda MR 573, SING). A Branch and inflorescence, side view B Inflorescence, from underneath C A single flower, front view D A single flower, lateral view E Corolla from underneath with calyx removed F Calyx G Anther H Pollinarium. (Photographs by M. Rodda)." figureDoi="10.3897/phytokeys.68.8803.figure1" httpUri="https://binary.pensoft.net/fig/97898" pageId="3" pageNumber="48">1</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<caption ID-Zenodo-Dep="981375" doi="10.3897/phytokeys.68.8803.figure1" httpUri="https://binary.pensoft.net/fig/97898" pageId="3" pageNumber="48" start="Figure 1" startId="F1">
|
||
<paragraph pageId="3" pageNumber="48">
|
||
<emphasis bold="true" pageId="3" pageNumber="48">Figure 1.</emphasis>
|
||
<taxonomicName authorityName="Rodda & Simonsson" authorityYear="2016" class="Magnoliopsida" family="Asclepiadaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya isabelchanae" order="Gentianales" pageId="3" pageNumber="48" phylum="Tracheophyta" rank="species" species="isabelchanae">
|
||
<emphasis italics="true" pageId="3" pageNumber="48">Hoya isabelchanae</emphasis>
|
||
</taxonomicName>
|
||
photographed in cultivation in Thailand (reference specimen
|
||
<emphasis italics="true" pageId="3" pageNumber="48">M. Rodda MR573</emphasis>
|
||
, SING).
|
||
<emphasis bold="true" pageId="3" pageNumber="48">A</emphasis>
|
||
Branch and inflorescence, side view
|
||
<emphasis bold="true" pageId="3" pageNumber="48">B</emphasis>
|
||
Inflorescence, from underneath
|
||
<emphasis bold="true" pageId="3" pageNumber="48">C</emphasis>
|
||
A single flower, front view
|
||
<emphasis bold="true" pageId="3" pageNumber="48">D</emphasis>
|
||
A single flower, lateral view
|
||
<emphasis bold="true" pageId="3" pageNumber="48">E</emphasis>
|
||
Corolla from underneath with calyx removed
|
||
<emphasis bold="true" pageId="3" pageNumber="48">F</emphasis>
|
||
Calyx
|
||
<emphasis bold="true" pageId="3" pageNumber="48">G</emphasis>
|
||
Anther
|
||
<emphasis bold="true" pageId="3" pageNumber="48">H</emphasis>
|
||
Pollinarium. (Photographs by M. Rodda).
|
||
</paragraph>
|
||
</caption>
|
||
<caption ID-Zenodo-Dep="981377" doi="10.3897/phytokeys.68.8803.figure2" httpUri="https://binary.pensoft.net/fig/97899" pageId="3" pageNumber="48" start="Figure 2" startId="F2">
|
||
<paragraph pageId="3" pageNumber="48">
|
||
<emphasis bold="true" pageId="3" pageNumber="48">Figure 2.</emphasis>
|
||
Leaves of
|
||
<taxonomicName authorityName="Rodda & Simonsson" authorityYear="2016" class="Magnoliopsida" family="Asclepiadaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya isabelchanae" order="Gentianales" pageId="3" pageNumber="48" phylum="Tracheophyta" rank="species" species="isabelchanae">
|
||
<emphasis italics="true" pageId="3" pageNumber="48">Hoya isabelchanae</emphasis>
|
||
</taxonomicName>
|
||
photographed in cultivation in Singapore (reference specimen
|
||
<emphasis italics="true" pageId="3" pageNumber="48">M. Rodda MR573</emphasis>
|
||
, SING).
|
||
<emphasis bold="true" pageId="3" pageNumber="48">A</emphasis>
|
||
Larger leaf, from above
|
||
<emphasis bold="true" pageId="3" pageNumber="48">B</emphasis>
|
||
Larger leaf, from underneath
|
||
<emphasis bold="true" pageId="3" pageNumber="48">C</emphasis>
|
||
Smaller leaf, from above
|
||
<emphasis bold="true" pageId="3" pageNumber="48">D</emphasis>
|
||
Smaller leaf, from underneath (Photographs by M. Rodda).
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph pageId="3" pageNumber="48">
|
||
Among Sulawesi
|
||
<taxonomicName class="Magnoliopsida" family="Apocynaceae" genus="Acanthostemma" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="Acanthostemma" order="Gentianales" pageId="3" pageNumber="48" phylum="Tracheophyta" rank="genus">
|
||
<emphasis italics="true" pageId="3" pageNumber="48">Acanthostemma</emphasis>
|
||
</taxonomicName>
|
||
members,
|
||
<taxonomicName authorityName="Rodda & Simonsson" authorityYear="2016" class="Magnoliopsida" family="Asclepiadaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya isabelchanae" order="Gentianales" pageId="3" pageNumber="48" phylum="Tracheophyta" rank="species" species="isabelchanae">
|
||
<emphasis italics="true" pageId="3" pageNumber="48">Hoya isabelchanae</emphasis>
|
||
</taxonomicName>
|
||
is vegetatively similar to
|
||
<taxonomicName authorityName="Kleijn & Donkelaar" authorityYear="2001" class="Magnoliopsida" family="Asclepiadaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya brevialata" order="Gentianales" pageId="3" pageNumber="48" phylum="Tracheophyta" rank="species" species="brevialata">
|
||
<emphasis italics="true" pageId="3" pageNumber="48">Hoya brevialata</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName authorityName="Kleijn & Donkelaar" authorityYear="2001" class="Magnoliopsida" family="Asclepiadaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya pallilimba" order="Gentianales" pageId="3" pageNumber="48" phylum="Tracheophyta" rank="species" species="pallilimba">
|
||
<emphasis italics="true" pageId="3" pageNumber="48">Hoya pallilimba</emphasis>
|
||
</taxonomicName>
|
||
, that make large clumps of prostrate and pendant stems and have convex round to elliptic laminas. They also have similar positively geotropic convex inflorescences. However
|
||
<taxonomicName authorityName="Rodda & Simonsson" authorityYear="2016" class="Magnoliopsida" family="Asclepiadaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya isabelchanae" order="Gentianales" pageId="3" pageNumber="48" phylum="Tracheophyta" rank="species" species="isabelchanae">
|
||
<emphasis italics="true" pageId="3" pageNumber="48">Hoya isabelchanae</emphasis>
|
||
</taxonomicName>
|
||
can be separated from
|
||
<taxonomicName authorityName="Kleijn & Donkelaar" authorityYear="2001" class="Magnoliopsida" family="Asclepiadaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya brevialata" order="Gentianales" pageId="3" pageNumber="48" phylum="Tracheophyta" rank="species" species="brevialata">
|
||
<emphasis italics="true" pageId="3" pageNumber="48">Hoya brevialata</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName authorityName="Kleijn & Donkelaar" authorityYear="2001" class="Magnoliopsida" family="Asclepiadaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya pallilimba" order="Gentianales" pageId="3" pageNumber="48" phylum="Tracheophyta" rank="species" species="pallilimba">
|
||
<emphasis italics="true" pageId="3" pageNumber="48">Hoya pallilimba</emphasis>
|
||
</taxonomicName>
|
||
because it has much larger flowers, both
|
||
<taxonomicName authorityName="Kleijn & Donkelaar" authorityYear="2001" class="Magnoliopsida" family="Asclepiadaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya brevialata" order="Gentianales" pageId="3" pageNumber="48" phylum="Tracheophyta" rank="species" species="brevialata">
|
||
<emphasis italics="true" pageId="3" pageNumber="48">Hoya brevialata</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName authorityName="Kleijn & Donkelaar" authorityYear="2001" class="Magnoliopsida" family="Asclepiadaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya pallilimba" order="Gentianales" pageId="3" pageNumber="48" phylum="Tracheophyta" rank="species" species="pallilimba">
|
||
<emphasis italics="true" pageId="3" pageNumber="48">Hoya pallilimba</emphasis>
|
||
</taxonomicName>
|
||
have flowers c. 5 mm across while
|
||
<taxonomicName authorityName="Rodda & Simonsson" authorityYear="2016" class="Magnoliopsida" family="Asclepiadaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya isabelchanae" order="Gentianales" pageId="3" pageNumber="48" phylum="Tracheophyta" rank="species" species="isabelchanae">
|
||
<emphasis italics="true" pageId="3" pageNumber="48">Hoya isabelchanae</emphasis>
|
||
</taxonomicName>
|
||
has flowers 8-10 mm in diameter. The corona of
|
||
<taxonomicName authorityName="Rodda & Simonsson" authorityYear="2016" class="Magnoliopsida" family="Asclepiadaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya isabelchanae" order="Gentianales" pageId="3" pageNumber="48" phylum="Tracheophyta" rank="species" species="isabelchanae">
|
||
<emphasis italics="true" pageId="3" pageNumber="48">Hoya isabelchanae</emphasis>
|
||
</taxonomicName>
|
||
has almost flat lobes while the coronas of
|
||
<taxonomicName authorityName="Kleijn & Donkelaar" authorityYear="2001" class="Magnoliopsida" family="Asclepiadaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya brevialata" order="Gentianales" pageId="3" pageNumber="48" phylum="Tracheophyta" rank="species" species="brevialata">
|
||
<emphasis italics="true" pageId="3" pageNumber="48">Hoya brevialata</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName authorityName="Kleijn & Donkelaar" authorityYear="2001" class="Magnoliopsida" family="Asclepiadaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya pallilimba" order="Gentianales" pageId="3" pageNumber="48" phylum="Tracheophyta" rank="species" species="pallilimba">
|
||
<emphasis italics="true" pageId="3" pageNumber="48">Hoya pallilimba</emphasis>
|
||
</taxonomicName>
|
||
have the inner lobe held much higher than the outer lobe process. Further, the corolla of
|
||
<taxonomicName authorityName="Kleijn & Donkelaar" authorityYear="2001" class="Magnoliopsida" family="Asclepiadaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya brevialata" order="Gentianales" pageId="3" pageNumber="48" phylum="Tracheophyta" rank="species" species="brevialata">
|
||
<emphasis italics="true" pageId="3" pageNumber="48">Hoya brevialata</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName authorityName="Kleijn & Donkelaar" authorityYear="2001" class="Magnoliopsida" family="Asclepiadaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya pallilimba" order="Gentianales" pageId="3" pageNumber="48" phylum="Tracheophyta" rank="species" species="pallilimba">
|
||
<emphasis italics="true" pageId="3" pageNumber="48">Hoya pallilimba</emphasis>
|
||
</taxonomicName>
|
||
is finely pubescent while the corolla of
|
||
<taxonomicName authorityName="Rodda & Simonsson" authorityYear="2016" class="Magnoliopsida" family="Asclepiadaceae" genus="Hoya" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Hoya isabelchanae" order="Gentianales" pageId="3" pageNumber="48" phylum="Tracheophyta" rank="species" species="isabelchanae">
|
||
<emphasis italics="true" pageId="3" pageNumber="48">Hoya isabelchanae</emphasis>
|
||
</taxonomicName>
|
||
is setose.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="3" pageNumber="48" type="materials_examined">
|
||
<paragraph pageId="3" pageNumber="48">Additional specimens examined.</paragraph>
|
||
<paragraph pageId="3" pageNumber="48">
|
||
<materialsCitation accessionNumber="GPS10161" collectingDate="2016-01-01" collectingDateMax="2016-12-31" collectingDateMin="2016-01-01" country="Indonesia" location="Sulawesi" specimenCount="1" stateProvince="Sulawesi">
|
||
<collectingCountry name="Indonesia">Indonesia</collectingCountry>
|
||
,
|
||
<collectingRegion country="Indonesia" name="Sulawesi Utara">Sulawesi</collectingRegion>
|
||
, (live collection numbers 7-35 and
|
||
<accessionNumber httpUri="http://www.ncbi.nlm.nih.gov/protein/GPS10161">GPS10161</accessionNumber>
|
||
), grown in
|
||
</materialsCitation>
|
||
<materialsCitation collectingDate="2014-03-23" collectorName="M. Rodda" country="Thailand" location="Ratchaburi" specimenCount="1" stateProvince="Ratchaburi">
|
||
<collectingCountry name="Thailand">Thailand</collectingCountry>
|
||
,
|
||
<collectingRegion country="Thailand" name="Ratchaburi">Ratchaburi</collectingRegion>
|
||
,
|
||
<collectingDate value="2014-03-23">23 Mar 2014</collectingDate>
|
||
,
|
||
<collectorName>M. Rodda</collectorName>
|
||
MR573 (SING)
|
||
</materialsCitation>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |