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<document ID-DOI="http://dx.doi.org/10.3897/phytokeys.97.20975" ID-GBIF-Taxon="182225246" ID-Pensoft-Pub="1314-2003-97-1" ID-Pensoft-UUID="BD026E15CD67FF99E01FF605FFF6FFEF" ID-Zenodo-Dep="1239255" ModsDocID="1314-2003-97-1" checkinTime="1524638383340" checkinUser="pensoft" docAuthor="Johnson, David M. &amp; Murray, Nancy A." docDate="2018" docId="6F5D8AA88BCC5D14A93AC2DABEF560DD" docLanguage="en" docName="PhytoKeys 97: 1-252" docOrigin="PhytoKeys 97" docPubDate="2018-04-24" docSource="http://dx.doi.org/10.3897/phytokeys.97.20975" docTitle="Xylopia lukei D. M. Johnson &amp; Goyder, Kew Bull. 72: 11: 3 7. 2017." docType="treatment" docVersion="2" id="BD026E15CD67FF99E01FF605FFF6FFEF" lastPageId="74" lastPageNumber="75" masterDocId="BD026E15CD67FF99E01FF605FFF6FFEF" masterDocTitle="A revision of Xylopia L. (Annonaceae): the species of Tropical Africa" masterLastPageNumber="252" masterPageNumber="1" pageId="73" pageNumber="74" updateTime="1643467003316" updateUser="ExternalLinkService">
<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo>
<mods:title>A revision of Xylopia L. (Annonaceae): the species of Tropical Africa</mods:title>
</mods:titleInfo>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Johnson, David M.</mods:namePart>
<mods:affiliation>Department of Botany-Microbiology, Ohio Wesleyan University, Delaware, OH, 43015, USA</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Murray, Nancy A.</mods:namePart>
<mods:affiliation>Department of Botany-Microbiology, Ohio Wesleyan University, Delaware, OH, 43015, USA</mods:affiliation>
<mods:nameIdentifier type="email">namurray@owu.edu</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>2018</mods:date>
<mods:detail type="pubDate">
<mods:number>2018-04-24</mods:number>
</mods:detail>
<mods:detail type="volume">
<mods:number>97</mods:number>
</mods:detail>
<mods:extent unit="page">
<mods:start>1</mods:start>
<mods:end>252</mods:end>
</mods:extent>
</mods:part>
</mods:relatedItem>
<mods:location>
<mods:url>http://dx.doi.org/10.3897/phytokeys.97.20975</mods:url>
</mods:location>
<mods:classification>journal article</mods:classification>
<mods:identifier type="DOI">http://dx.doi.org/10.3897/phytokeys.97.20975</mods:identifier>
<mods:identifier type="Pensoft-Pub">1314-2003-97-1</mods:identifier>
<mods:identifier type="Pensoft-UUID">BD026E15CD67FF99E01FF605FFF6FFEF</mods:identifier>
<mods:identifier type="Zenodo-Dep">1239255</mods:identifier>
</mods:mods>
<treatment ID-GBIF-Taxon="182225246" LSID="urn:lsid:plazi:treatment:6F5D8AA88BCC5D14A93AC2DABEF560DD" httpUri="http://treatment.plazi.org/id/6F5D8AA88BCC5D14A93AC2DABEF560DD" lastPageId="74" lastPageNumber="75" pageId="73" pageNumber="74">
<subSubSection pageId="73" pageNumber="74" type="nomenclature">
<paragraph pageId="73" pageNumber="74">
9.
<taxonomicName LSID="6F5D8AA8-8BCC-5D14-A93A-C2DABEF560DD" authority="D. M. Johnson &amp; Goyder, Kew Bull. 72: 11: 3 - 7. 2017." authorityName="D. M. Johnson &amp; Goyder, Kew Bull. 72: 11: 3 7. 2017." class="Magnoliopsida" family="Annonaceae" genus="Xylopia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Xylopia lukei" order="Magnoliales" pageId="73" pageNumber="74" phylum="Tracheophyta" rank="species" species="lukei">Xylopia lukei D. M. Johnson &amp; Goyder, Kew Bull. 72:11: 3-7. 2017.</taxonomicName>
<figureCitation captionStart="Figure 18" captionStartId="F18" captionText="Figure 18. Xylopia lukei and X. mwasumbii. A-F, H X. lukei A Habit B, C Stamens, abaxial view D Outer petal, adaxial view E Inner petal, adaxial view F Flower, side view H Flower with petals removed, showing carpels G, I-P X. mwasumbii G Fruit I Leaves J Flower, side view K, M Stamens, abaxial view L Gynoecium and surrounding staminal cone N Flower gall O Seed with aril removed, side view P Seed with aril removed, view of micropylar end. A-F, H from Luke et al. 10166 (MO) G from Johnson &amp; Ndangalasi 1899 (OWU) I, J from Johnson 1920 (OWU) K-M from Johnson 1928 A (OWU) N from Johnson &amp; Ndangalasi 1948 (OWU) O, P from Johnson &amp; Ndangalasi 1884 (OWU) K-M, O, P were drawn from ethanol-preserved material and so have dimensions slightly greater than those in the description, which is based on dried specimens. Reproduced with the permission of the Board of Trustees, Royal Botanic Gardens Kew." figureDoi="10.3897/phytokeys.97.20975.figure18" httpUri="https://binary.pensoft.net/fig/199103" pageId="73" pageNumber="74">Fig. 18A-F, H</figureCitation>
</paragraph>
</subSubSection>
<subSubSection pageId="73" pageNumber="74" type="materials_examined">
<paragraph pageId="73" pageNumber="74">
<typeStatus>Type</typeStatus>
.
</paragraph>
<paragraph pageId="73" pageNumber="74">
<materialsCitation collectingDate="2003-12-15" collectorName="Q. Luke" country="MOZAMBIQUE" elevation="180" latitude="-10.9" location="Lat" longLatPrecision="1296" longitude="39.9" municipality="Nangade-Palma" specimenCount="1" stateProvince="Cabo Delgado Province" typeStatus="holotype">
<collectingCountry name="Mozambique">MOZAMBIQUE</collectingCountry>
.
<collectingRegion country="Mozambique" name="Cabo Delgado">Cabo Delgado Province</collectingRegion>
,
<collectingMunicipality>Nangade-Palma</collectingMunicipality>
,
<quantity metricMagnitude="2" metricUnit="m" metricValue="1.8" unit="m" value="180.0">
<elevation metricMagnitude="2" metricUnit="m" metricValue="1.8" unit="m" value="180.0">180 m</elevation>
</quantity>
,
<location LSID="urn:lsid:plazi:treatment:6F5D8AA88BCC5D14A93AC2DABEF560DD:07D21C8C8DF8D281495C5990EB64C589" country="MOZAMBIQUE" latitude="-10.9" longLatPrecision="1296" longitude="39.9" municipality="Nangade-Palma" name="Lat" stateProvince="Cabo Delgado Province">Lat</location>
<geoCoordinate degrees="10" direction="south" minutes="54" orientation="latitude" precision="925" value="-10.9">10°54'S</geoCoordinate>
, Long
<geoCoordinate degrees="39" direction="east" minutes="54" orientation="longitude" precision="925" value="39.9">39°54'E</geoCoordinate>
,
<collectingDate value="2003-12-15">15 Dec 2003</collectingDate>
,
<emphasis italics="true" pageId="73" pageNumber="74">
<collectorName>Q. Luke</collectorName>
et al. 10166
</emphasis>
(
<typeStatus>holotype</typeStatus>
: EA!; isotypes: K! MO! [5795498])
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection pageId="73" pageNumber="74" type="description">
<paragraph pageId="73" pageNumber="74">Description.</paragraph>
<paragraph pageId="73" pageNumber="74">
<emphasis bold="true" italics="true" pageId="73" pageNumber="74">Tree or shrub</emphasis>
up to 9 m tall.
<emphasis bold="true" italics="true" pageId="73" pageNumber="74">Twigs</emphasis>
light gray to light brown, sparsely appressed pubescent, the hairs 0.2-0.3 mm long, eventually reddish brown, glabrate, with bark exfoliating; nodes occasionally with two axillary branches.
<emphasis bold="true" italics="true" pageId="73" pageNumber="74">Leaf</emphasis>
with larger blades 8.2-11.9 cm long, 4.1-5.8 cm wide, subcoriaceous, slightly discolorous, broadly elliptic to ovate, occasionally oblong-elliptic, apex acuminate with an acumen 7-14 mm long, base broadly cuneate to rounded and slightly decurrent on petiole, glabrous adaxially, sparsely appressed-pubescent to glabrous abaxially; midrib plane adaxially, raised abaxially, secondary veins irregularly brochidodromous, 8-15 per side, diverging at 45-80° from the midrib, these and higher-order veins slightly raised on both surfaces; petiole 3.5-10 mm long, flattened to shallowly canaliculate, glabrous to sparsely pubescent.
<emphasis bold="true" italics="true" pageId="73" pageNumber="74">Inflorescences</emphasis>
axillary or rarely slightly supra-axillary, 1-5-flowered, appressed-pubescent; peduncles 1-2 per axil, 1.3-2.6 mm long; pedicels 1-3 per peduncle, 4.5-6 mm long, 1.0-1.2 mm thick; bracts 1-3, usually 2, evenly spaced on pedicel, persistent or with lowest caducous, 1.6-2.9 mm long, ovate to semicircular, apex acute to rounded; buds oblong-lanceolate to oblong, apex obtuse.
<emphasis bold="true" italics="true" pageId="73" pageNumber="74">Sepals</emphasis>
slightly spreading at anthesis, 1/4-1/2-connate, 2.6-4.7 mm long, 2.6-4.2 mm wide, coriaceous, oblong, the free portion somewhat pentagonal, apex short-acuminate to acute, appressed-pubescent abaxially.
<emphasis bold="true" italics="true" pageId="73" pageNumber="74">Petals</emphasis>
apricot-colored to brownish yellow
<emphasis italics="true" pageId="73" pageNumber="74">in vivo</emphasis>
; outer petals wide-spreading at anthesis, 8.8-15.5 mm long, 2.8-4.2 mm wide at base, 2.5-3.3 mm wide at midpoint, coriaceous or slightly fleshy, lanceolate, apex acute to obtuse, densely pubescent along margins and at the apex but glabrous and verrucose toward the base adaxially, densely appressed-pubescent abaxially; inner petals erect at anthesis, 9.8-12.5 mm long, 2-2.7 mm wide at base, 1.3-2.1 mm wide at midpoint, coriaceous or slightly fleshy, lanceolate, apex acute, base with undifferentiated margin, wrinkled, verrucose, glabrous.
<emphasis bold="true" italics="true" pageId="73" pageNumber="74">Stamens</emphasis>
ca. 65; fertile stamens 1.6-2.3 mm long, narrowly oblong, apex of connective ca. 0.1 mm long, truncate, not overhanging anther thecae, glabrous, anthers 6-12-locellate, filament 0.7-1.0 mm long; outer staminodes ca. 1.5 mm long, oblong, apex rounded to truncate; inner staminodes 1.0-1.2 mm long, oblong, apex truncate; staminal cone 1.0-1.2 mm in diameter, ca. 0.8 mm high, concealing only the bases of the ovaries, rim laciniate.
<emphasis bold="true" italics="true" pageId="73" pageNumber="74">Carpels</emphasis>
3-4; ovaries 1.8-2.0 mm long, narrowly oblong, pubescent, stigmas loosely appressed, 1.5-2.0 mm long, lanceolate, apex acute, sparsely pubescent to glabrous.
<emphasis bold="true" italics="true" pageId="73" pageNumber="74">Torus</emphasis>
flat or a little bumpy, 1.3-1.7 mm in diameter.
<emphasis bold="true" italics="true" pageId="73" pageNumber="74">Fruit</emphasis>
and
<emphasis bold="true" italics="true" pageId="73" pageNumber="74">seeds</emphasis>
unknown.
</paragraph>
<caption ID-Zenodo-Dep="1239301" doi="10.3897/phytokeys.97.20975.figure18" httpUri="https://binary.pensoft.net/fig/199103" pageId="73" pageNumber="74" start="Figure 18" startId="F18">
<paragraph pageId="73" pageNumber="74">
<emphasis bold="true" pageId="73" pageNumber="74">Figure 18.</emphasis>
<taxonomicName class="Magnoliopsida" family="Ulmaceae" genus="Xylopia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Xylopia lukei" order="Magnoliales" pageId="73" pageNumber="74" phylum="Tracheophyta" rank="species" species="lukei">
<emphasis italics="true" pageId="73" pageNumber="74">Xylopia lukei</emphasis>
</taxonomicName>
and
<taxonomicName family="Annonaceae" genus="X." kingdom="Plantae" lsidName="X. mwasumbii" order="Magnoliales" pageId="73" pageNumber="74" rank="species" species="mwasumbii">
<emphasis italics="true" pageId="73" pageNumber="74">X. mwasumbii</emphasis>
</taxonomicName>
.
<emphasis bold="true" pageId="73" pageNumber="74">A-F, H</emphasis>
<taxonomicName family="Annonaceae" genus="X." kingdom="Plantae" lsidName="X. lukei" order="Magnoliales" pageId="73" pageNumber="74" rank="species" species="lukei">
<emphasis italics="true" pageId="73" pageNumber="74">X. lukei</emphasis>
</taxonomicName>
<emphasis bold="true" pageId="73" pageNumber="74">A</emphasis>
Habit
<emphasis bold="true" pageId="73" pageNumber="74">B, C</emphasis>
Stamens, abaxial view
<emphasis bold="true" pageId="73" pageNumber="74">D</emphasis>
Outer petal, adaxial view
<emphasis bold="true" pageId="73" pageNumber="74">E</emphasis>
Inner petal, adaxial view
<emphasis bold="true" pageId="73" pageNumber="74">F</emphasis>
Flower, side view
<emphasis bold="true" pageId="73" pageNumber="74">H</emphasis>
Flower with petals removed, showing carpels
<emphasis bold="true" pageId="73" pageNumber="74">G, I-P</emphasis>
<taxonomicName family="Annonaceae" genus="X." kingdom="Plantae" lsidName="X. mwasumbii" order="Magnoliales" pageId="73" pageNumber="74" rank="species" species="mwasumbii">
<emphasis italics="true" pageId="73" pageNumber="74">X. mwasumbii</emphasis>
</taxonomicName>
<emphasis bold="true" pageId="73" pageNumber="74">G</emphasis>
Fruit
<emphasis bold="true" pageId="73" pageNumber="74">I</emphasis>
Leaves
<emphasis bold="true" pageId="73" pageNumber="74">J</emphasis>
Flower, side view
<emphasis bold="true" pageId="73" pageNumber="74">K, M</emphasis>
Stamens, abaxial view
<emphasis bold="true" pageId="73" pageNumber="74">L</emphasis>
Gynoecium and surrounding staminal cone
<emphasis bold="true" pageId="73" pageNumber="74">N</emphasis>
Flower gall
<emphasis bold="true" pageId="73" pageNumber="74">O</emphasis>
Seed with aril removed, side view
<emphasis bold="true" pageId="73" pageNumber="74">P</emphasis>
Seed with aril removed, view of micropylar end.
<emphasis bold="true" pageId="73" pageNumber="74">A-F, H</emphasis>
from
<emphasis italics="true" pageId="73" pageNumber="74">Luke et al. 10166</emphasis>
(MO)
<emphasis bold="true" pageId="73" pageNumber="74">G</emphasis>
from
<emphasis italics="true" pageId="73" pageNumber="74">Johnson &amp; Ndangalasi 1899</emphasis>
(OWU)
<emphasis bold="true" pageId="73" pageNumber="74">I, J</emphasis>
from
<emphasis italics="true" pageId="73" pageNumber="74">Johnson 1920</emphasis>
(OWU)
<emphasis bold="true" pageId="73" pageNumber="74">K-M</emphasis>
from
<emphasis italics="true" pageId="73" pageNumber="74">Johnson 1928A</emphasis>
(OWU)
<emphasis bold="true" pageId="73" pageNumber="74">N</emphasis>
from
<emphasis italics="true" pageId="73" pageNumber="74">Johnson &amp; Ndangalasi 1948</emphasis>
(OWU)
<emphasis bold="true" pageId="73" pageNumber="74">O, P</emphasis>
from
<emphasis italics="true" pageId="73" pageNumber="74">Johnson &amp; Ndangalasi 1884</emphasis>
(OWU)
<emphasis bold="true" pageId="73" pageNumber="74">K-M, O, P</emphasis>
were drawn from ethanol-preserved material and so have dimensions slightly greater than those in the description, which is based on dried specimens. Reproduced with the permission of the Board of Trustees, Royal Botanic Gardens Kew.
</paragraph>
</caption>
</subSubSection>
<subSubSection pageId="73" pageNumber="74" type="phenology">
<paragraph pageId="73" pageNumber="74">Phenology.</paragraph>
<paragraph pageId="73" pageNumber="74">Specimens bearing mature flowers have been gathered in November and December; specimens with flower buds only have been collected in May and September.</paragraph>
</subSubSection>
<subSubSection pageId="73" pageNumber="74" type="distribution">
<paragraph pageId="73" pageNumber="74">Distribution</paragraph>
<paragraph pageId="73" pageNumber="74">
(Fig.
<figureCitation captionStart="Figure 19" captionStartId="F19" captionText="Figure 19. Distributions of Xylopia lukei, X. mwasumbii, and X. tenuipetala in eastern Africa. Bold lines represent country borders." figureDoi="10.3897/phytokeys.97.20975.figure19" httpUri="https://binary.pensoft.net/fig/199104" pageId="73" pageNumber="74">19</figureCitation>
). Restricted to southeastern Tanzania and northeastern Mozambique, where it occurs in coastal dry forest on reddish orange sands below 200 m.
</paragraph>
<caption ID-Zenodo-Dep="1239303" doi="10.3897/phytokeys.97.20975.figure19" httpUri="https://binary.pensoft.net/fig/199104" pageId="73" pageNumber="74" start="Figure 19" startId="F19">
<paragraph pageId="73" pageNumber="74">
<emphasis bold="true" pageId="73" pageNumber="74">Figure 19.</emphasis>
Distributions of
<taxonomicName class="Magnoliopsida" family="Ulmaceae" genus="Xylopia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Xylopia lukei" order="Magnoliales" pageId="73" pageNumber="74" phylum="Tracheophyta" rank="species" species="lukei">
<emphasis italics="true" pageId="73" pageNumber="74">Xylopia lukei</emphasis>
</taxonomicName>
,
<taxonomicName family="Annonaceae" genus="X." kingdom="Plantae" lsidName="X. mwasumbii" order="Magnoliales" pageId="73" pageNumber="74" rank="species" species="mwasumbii">
<emphasis italics="true" pageId="73" pageNumber="74">X. mwasumbii</emphasis>
</taxonomicName>
, and
<taxonomicName family="Annonaceae" genus="X." kingdom="Plantae" lsidName="X. tenuipetala" order="Magnoliales" pageId="73" pageNumber="74" rank="species" species="tenuipetala">
<emphasis italics="true" pageId="73" pageNumber="74">X. tenuipetala</emphasis>
</taxonomicName>
in eastern Africa. Bold lines represent country borders.
</paragraph>
</caption>
</subSubSection>
<subSubSection lastPageId="74" lastPageNumber="75" pageId="73" pageNumber="74" type="materials_examined">
<paragraph pageId="73" pageNumber="74">Additional specimens examined.</paragraph>
<paragraph pageId="73" pageNumber="74">
<materialsCitation collectingDate="1943-05-25" collectorName="Gillman" country="TANZANIA" latitude="-10.15" location="Lindi" longLatPrecision="1298" longitude="39.966667" specimenCount="1" stateProvince="Lindi">
<emphasis bold="true" pageId="73" pageNumber="74">
<collectingCountry name="Tanzania">TANZANIA</collectingCountry>
.
</emphasis>
<collectingRegion country="Tanzania" name="Lindi">Lindi</collectingRegion>
:
<collectingRegion country="Tanzania" name="Kusini Unguja">Sudi</collectingRegion>
[ca.
<geoCoordinate degrees="10" direction="south" minutes="09" orientation="latitude" precision="925" value="-10.15">10°09'S</geoCoordinate>
,
<geoCoordinate degrees="39" direction="east" minutes="58" orientation="longitude" precision="925" value="39.966667">39°58'E</geoCoordinate>
],
<collectingDate value="1943-05-25">25 May 1943</collectingDate>
(fl buds),
<emphasis italics="true" pageId="73" pageNumber="74">
<collectorName>Gillman</collectorName>
1465
</emphasis>
(EA, K)
</materialsCitation>
.
<materialsCitation collectingDate="2009-09-07" collectorName="Burrows" country="MOZAMBIQUE" county="Pundanhar" elevation="169" latitude="-10.901944" location="Nangade" longLatPrecision="21" longitude="39.945557" municipality="Hunters" specimenCount="1" stateProvince="Cabo Delgado">
<emphasis bold="true" pageId="73" pageNumber="74">
<collectingCountry name="Mozambique">MOZAMBIQUE</collectingCountry>
.
</emphasis>
<collectingRegion country="Mozambique" name="Cabo Delgado">Cabo Delgado</collectingRegion>
: between
<collectingCounty>Pundanhar</collectingCounty>
and turnoff to
<collectingMunicipality>Hunters</collectingMunicipality>
Mozambique hunting camp, towards
<location LSID="urn:lsid:plazi:treatment:6F5D8AA88BCC5D14A93AC2DABEF560DD:419F4A4794B1C9EBD215A896A3117E55" country="MOZAMBIQUE" county="Pundanhar" latitude="-10.901944" longLatPrecision="21" longitude="39.945557" municipality="Hunters" name="Nangade" stateProvince="Cabo Delgado">Nangade</location>
,
<geoCoordinate degrees="10" direction="south" minutes="54" orientation="latitude" precision="15" seconds="7" value="-10.901944">10° 54' 7&quot;S</geoCoordinate>
,
<geoCoordinate degrees="39" direction="east" minutes="56" orientation="longitude" precision="15" seconds="44" value="39.945557">39° 56' 44&quot;E</geoCoordinate>
,
<quantity metricMagnitude="2" metricUnit="m" metricValue="1.69" unit="m" value="169.0">
<elevation metricMagnitude="2" metricUnit="m" metricValue="1.69" unit="m" value="169.0">169 m</elevation>
</quantity>
,
<collectingDate value="2009-09-07">7 Sept 2009</collectingDate>
(fl buds),
<emphasis italics="true" pageId="73" pageNumber="74">
<collectorName>Burrows</collectorName>
et al. 11390
</emphasis>
(BNRH, K);
<location LSID="urn:lsid:plazi:treatment:6F5D8AA88BCC5D14A93AC2DABEF560DD:5120864A0241811C8D8E375992466515" country="MOZAMBIQUE" county="Pundanhar" latitude="-10.901944" longLatPrecision="21" longitude="39.945557" municipality="Hunters" name="Palma District" stateProvince="Cabo Delgado">Palma District</location>
, patch of forest on the coastal plain between the
</materialsCitation>
<materialsCitation collectingDate="2008-12-06" collectingDateMax="2009-11-14" collectingDateMin="2008-12-06" collectorName="Luke, Mueller, Clarke" country="Mozambique" county="Quionga" elevation="16" latitude="-10.908055" location="Palma District" longLatPrecision="21" longitude="39.920002" municipality="Palma" specimenCount="1" stateProvince="Cabo Delgado">
<collectingRegion country="Mozambique" name="Cabo Delgado">Cabo Delgado</collectingRegion>
peninsula and
<collectingCounty>Quionga</collectingCounty>
,
<geoCoordinate degrees="10" direction="south" minutes="39" orientation="latitude" precision="15" seconds="03" value="-10.650833">10°39'03&quot;S</geoCoordinate>
,
<geoCoordinate degrees="40" direction="east" minutes="32" orientation="longitude" precision="15" seconds="59" value="40.54972">40°32'59&quot;E</geoCoordinate>
,
<quantity metricMagnitude="1" metricUnit="m" metricValue="1.6" unit="m" value="16.0">
<elevation metricMagnitude="1" metricUnit="m" metricValue="1.6" unit="m" value="16.0">16 m</elevation>
</quantity>
,
<collectingDate value="2009-11-06">6 Nov 2009</collectingDate>
(fl buds),
<emphasis italics="true" pageId="73" pageNumber="74">Clarke 97</emphasis>
(K, LMA);
<locationDeviation location="Palma">N of Palma</locationDeviation>
, on cut line 11 off main road from
<collectingMunicipality>Palma</collectingMunicipality>
to Namoto, Way Point: 082
<geoCoordinate degrees="10" direction="south" minutes="37" orientation="latitude" precision="1" seconds="27.3" value="-10.62425">10˚37'27.3&quot;S</geoCoordinate>
,
<geoCoordinate degrees="40" direction="east" minutes="25" orientation="longitude" precision="1" seconds="05.7" value="40.41825">40˚25'05.7&quot;E</geoCoordinate>
, ca.
<quantity metricMagnitude="1" metricUnit="m" metricValue="9.0" unit="m" value="90.0">
<elevation metricMagnitude="1" metricUnit="m" metricValue="9.0" unit="m" value="90.0">90 m</elevation>
</quantity>
,
<collectingDate value="2008-12-06">6 Dec 2008</collectingDate>
(fl buds),
<emphasis italics="true" pageId="73" pageNumber="74">Crawford et al. FC323</emphasis>
(K, LMA, P); Nangade to Pundanhar pt427
<geoCoordinate degrees="10.9091" direction="south" orientation="latitude" precision="5" value="-10.9091">10.9091°S</geoCoordinate>
,
<geoCoordinate degrees="39.9170" direction="east" orientation="longitude" precision="5" value="39.917">39.9170°E</geoCoordinate>
,
<quantity metricMagnitude="2" metricUnit="m" metricValue="1.68" unit="m" value="168.0">
<elevation metricMagnitude="2" metricUnit="m" metricValue="1.68" unit="m" value="168.0">168 m</elevation>
</quantity>
,
<collectingDate value="2009-11-12">12 Nov 2009</collectingDate>
(fl),
<emphasis italics="true" pageId="73" pageNumber="74">
<collectorName>Luke</collectorName>
&amp;
<collectorName>Luke</collectorName>
13760
</emphasis>
(EA, K, LMA, MO, P); Quionga to Nachindundo pt437
<geoCoordinate degrees="10.6010" direction="south" orientation="latitude" precision="5" value="-10.601">10.6010°S</geoCoordinate>
,
<geoCoordinate degrees="40.6160" direction="east" orientation="longitude" precision="5" value="40.616">40.6160°E</geoCoordinate>
,
<quantity metricMagnitude="1" metricUnit="m" metricValue="6.0" unit="m" value="60.0">
<elevation metricMagnitude="1" metricUnit="m" metricValue="6.0" unit="m" value="60.0">60m</elevation>
</quantity>
,
<collectingDate value="2009-11-14">14 Nov 2009</collectingDate>
(fl),
<emphasis italics="true" pageId="73" pageNumber="74">
<collectorName>Luke</collectorName>
&amp;
<collectorName>Luke</collectorName>
13794
</emphasis>
(EA, K, LMA, P);
<location LSID="urn:lsid:plazi:treatment:6F5D8AA88BCC5D14A93AC2DABEF560DD:791523280FE6827BBBA0043A43B95C56" country="Mozambique" county="Quionga" latitude="-10.908055" longLatPrecision="21" longitude="39.920002" municipality="Palma" name="Palma District" stateProvince="Cabo Delgado">Palma District</location>
, Pundanhar to Nangade road.
<geoCoordinate degrees="10" direction="south" minutes="54" orientation="latitude" precision="15" seconds="29" value="-10.908055">10°54'29&quot;S</geoCoordinate>
,
<geoCoordinate degrees="39" direction="east" minutes="55" orientation="longitude" precision="15" seconds="12" value="39.920002">39°55'12&quot;E</geoCoordinate>
., alt.
<quantity metricMagnitude="2" metricUnit="m" metricValue="1.77" unit="m" value="177.0">
<elevation metricMagnitude="2" metricUnit="m" metricValue="1.77" unit="m" value="177.0">177 m</elevation>
</quantity>
,
<collectingDate value="2009-11-06">6 Nov 2009</collectingDate>
(fl buds),
<emphasis italics="true" pageId="73" pageNumber="74">
<normalizedToken originalValue="Müller">
<collectorName>Mueller</collectorName>
</normalizedToken>
&amp;
<collectorName>Clarke</collectorName>
4159
</emphasis>
(K, LMA)
</materialsCitation>
.
</paragraph>
<paragraph pageId="73" pageNumber="74">
<taxonomicName class="Magnoliopsida" family="Ulmaceae" genus="Xylopia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Xylopia lukei" order="Magnoliales" pageId="73" pageNumber="74" phylum="Tracheophyta" rank="species" species="lukei">
<emphasis italics="true" pageId="73" pageNumber="74">Xylopia lukei</emphasis>
</taxonomicName>
is distinctive within section
<taxonomicName class="Magnoliopsida" family="Ulmaceae" genus="Xylopia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="" order="Magnoliales" pageId="73" pageNumber="74" phylum="Tracheophyta" rank="section" section="Verdcourtia">Verdcourtia</taxonomicName>
by virtue of its larger leaf blades,
<quantity metricMagnitude="-1" metricUnit="m" metricValue="1.005" metricValueMax="1.19" metricValueMin="0.82" unit="cm" value="10.05" valueMax="11.9" valueMin="8.2">8.2-11.9 cm</quantity>
long and
<quantity metricMagnitude="-2" metricUnit="m" metricValue="4.949999999999999" metricValueMax="5.8" metricValueMin="4.1" unit="cm" value="4.949999999999999" valueMax="5.8" valueMin="4.1">4.1-5.8 cm</quantity>
wide, usually distinctly brown-discolored on the abaxial surface, a complex inflorescence consisting of up to five flowers with some pedicels branching from a common peduncle, the pedicels with bracts
<quantity metricMagnitude="-3" metricUnit="m" metricValue="2.7" metricValueMax="2.9" metricValueMin="2.5" unit="mm" value="2.7" valueMax="2.9" valueMin="2.5">2.5-2.9 mm</quantity>
long, and pubescent sepals
<quantity metricMagnitude="-3" metricUnit="m" metricValue="4.2" metricValueMax="4.7" metricValueMin="3.7" unit="mm" value="4.2" valueMax="4.7" valueMin="3.7">3.7-4.7 mm</quantity>
with the free portion of the sepal somewhat pentagonal in shape. In other species of the section, the leaf blades do not exceed
<quantity metricMagnitude="-2" metricUnit="m" metricValue="8.7" unit="cm" value="8.7">8.7 cm</quantity>
in length and are concolorous, the inflorescences comprise one to two (rarely three) flowers, the bracts of the pedicel only reach
<quantity metricMagnitude="-3" metricUnit="m" metricValue="1.4" unit="mm" value="1.4">1.4 mm</quantity>
in length and are glabrous, and the sepals do not exceed
<quantity metricMagnitude="-3" metricUnit="m" metricValue="2.6" unit="mm" value="2.6">2.6 mm</quantity>
in length, are at most sparsely sericeous, and have the free portion broadly triangular in shape.
</paragraph>
<paragraph lastPageId="74" lastPageNumber="75" pageId="73" pageNumber="74">
The coastal dry forests where
<taxonomicName family="Annonaceae" genus="X." kingdom="Plantae" lsidName="X. lukei" order="Magnoliales" pageId="73" pageNumber="74" rank="species" species="lukei">
<emphasis italics="true" pageId="73" pageNumber="74">X. lukei</emphasis>
</taxonomicName>
occurs were the subject of a recent floristic analysis by
<bibRefCitation DOI="https://doi.org/10.5091/plecevo.2011.539" author="Timberlake, J" journalOrPublisher="Plant Ecology and Evolution" pageId="191" pageNumber="192" pagination="126 - 137" refId="B165" refString="Timberlake, J, Goyder, D, Crawford, F, Burrows, J, Clarke, GP, Luke, Q, Matimele, H, Mueller, T, Pascal, O, de Sousa, C, Alves, T, 2011. Coastal dry forests in northern Mozambique. Plant Ecology and Evolution 144: 126 - 137, DOI: https://doi.org/10.5091/plecevo.2011.539" title="Coastal dry forests in northern Mozambique." url="https://doi.org/10.5091/plecevo.2011.539" volume="144" year="2011">Timberlake et al. (2011)</bibRefCitation>
, who identified at least 23 other plant species with a similar pattern of endemism. Species mentioned on herbarium labels as associates of
<taxonomicName family="Annonaceae" genus="X." kingdom="Plantae" lsidName="X. lukei" order="Magnoliales" pageId="73" pageNumber="74" rank="species" species="lukei">
<emphasis italics="true" pageId="73" pageNumber="74">X. lukei</emphasis>
</taxonomicName>
include
<taxonomicName class="Magnoliopsida" family="Rubiaceae" genus="Chassalia" higherTaxonomySource="GBIF,CoL" kingdom="Plantae" lsidName="Chassalia" order="Gentianales" pageId="73" pageNumber="74" phylum="Tracheophyta" rank="genus">
<emphasis italics="true" pageId="73" pageNumber="74">Chassalia</emphasis>
</taxonomicName>
sp.,
<taxonomicName authorityName="Prain" authorityYear="1911" baseAuthorityName="Pax" class="Magnoliopsida" family="Euphorbiaceae" genus="Erythrococca" higherTaxonomySource="GBIF,CoL" kingdom="Plantae" lsidName="Erythrococca atrovirens" order="Malpighiales" pageId="73" pageNumber="74" phylum="Tracheophyta" rank="species" species="atrovirens">
<emphasis italics="true" pageId="73" pageNumber="74">Erythrococca atrovirens</emphasis>
</taxonomicName>
,
<taxonomicName authority="subsp. holtzii" class="Bryopsida" family="Brachytheciaceae" genus="Pancovia" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="Pancovia holtzii subsp. holtzii" order="Hypnales" pageId="73" pageNumber="74" phylum="Bryophyta" rank="subSpecies" species="holtzii" subSpecies="holtzii">Pancovia holtzii subsp. holtzii</taxonomicName>
,
<taxonomicName authorityName="Cavaco" authorityYear="1968" baseAuthorityName="Baker" class="Magnoliopsida" family="Rubiaceae" genus="Pyrostria" higherTaxonomySource="GBIF,CoL" kingdom="Plantae" lsidName="Pyrostria bibracteata" order="Gentianales" pageId="73" pageNumber="74" phylum="Tracheophyta" rank="species" species="bibracteata">Pyrostria sp. cf. bibracteata</taxonomicName>
,
<taxonomicName class="Dicotyledoneae" family="Violaceae" genus="Rinorea" higherTaxonomySource="GBIF" kingdom="Plantae" lsidName="Rinorea angustifolia subsp. ardisiiflora" order="Violales" pageId="73" pageNumber="74" phylum="Angiospermae" rank="subSpecies" species="angustifolia" subSpecies="ardisiiflora">Rinorea angustifolia subsp. ardisiiflora</taxonomicName>
,
<taxonomicName authorityName="Oliver" authorityYear="1868" class="Magnoliopsida" family="Annonaceae" genus="Uvaria" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Uvaria acuminata" order="Magnoliales" pageId="73" pageNumber="74" phylum="Tracheophyta" rank="species" species="acuminata">
<emphasis italics="true" pageId="73" pageNumber="74">Uvaria acuminata</emphasis>
</taxonomicName>
, and
<taxonomicName authorityName="A. E. van Wyk" authorityYear="2002" baseAuthorityName="A. Fern. &amp; R. Fern." class="Magnoliopsida" family="Melastomataceae" genus="Warneckea" higherTaxonomySource="GBIF,CoL" kingdom="Plantae" lsidName="Warneckea sousae" order="Myrtales" pageId="73" pageNumber="74" phylum="Tracheophyta" rank="species" species="sousae">
<emphasis italics="true" pageId="73" pageNumber="74">Warneckea sousae</emphasis>
</taxonomicName>
. The forests where the plants occur are currently under threat
<pageBreakToken pageId="74" pageNumber="75" start="start">from</pageBreakToken>
road expansion and other land development, and a conservation assessment of Endangered was recently proposed for it (
<bibRefCitation DOI="https://doi.org/10.1007/S12225-017-9681-X" author="Johnson, DM" journalOrPublisher="Novon" pageId="187" pageNumber="188" refId="B88" refString="Johnson, DM, Luke, Q, Goyder, D, Murray, NA, 2017. New species of Xylopia (Annonaceae) from East Africa. Kew Bulletin 72: 11. https://doi.org/10.1007/S12225-017-9681-X" title="New species of Xylopia (Annonaceae) from East Africa. Kew Bulletin 72: 11." url="https://doi.org/10.1007/S12225-017-9681-X" year="2017">Johnson et al. 2017</bibRefCitation>
; Table
<tableCitation captionStart="Table 1" captionStartId="T1" captionText="Table 1. Conservation assessment data for 28 African species of Xylopia. Threat status was taken from the IUCN Red List on 3 January 2018. Extent of Occurrence (EOO), Area of Occupancy (AOO), and number of localities based on the present study. IUCN status abbreviations are DD = Data Deficient, EN = Endangered, NT = Near Threatened, VU = Vulnerable. Footnoted references for published non-IUCN conservation assessments are † = Onana and Cheek 2011, ‡ = Johnson et al. 2017." httpUri="http://table.plazi.org/id/92BA95775F3A914B799DD8820C327EB1" pageId="74" pageNumber="75" tableUuid="92BA95775F3A914B799DD8820C327EB1">1</tableCitation>
).
</paragraph>
<paragraph pageId="74" pageNumber="75">
<taxonomicName class="Magnoliopsida" family="Ulmaceae" genus="Xylopia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Xylopia lukei" order="Magnoliales" pageId="74" pageNumber="75" phylum="Tracheophyta" rank="species" species="lukei">
<emphasis italics="true" pageId="74" pageNumber="75">Xylopia lukei</emphasis>
</taxonomicName>
was informally designated as
<taxonomicName class="Magnoliopsida" family="Ulmaceae" genus="Xylopia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Xylopia" order="Magnoliales" pageId="74" pageNumber="75" phylum="Tracheophyta" rank="genus">
<emphasis italics="true" pageId="74" pageNumber="75">Xylopia</emphasis>
</taxonomicName>
&quot;species A&quot; by
<bibRefCitation author="Verdcourt, B" journalOrPublisher="Crown Agents for Oversea Governments and Administrations, London" pageId="191" pageNumber="192" refId="B176" refString="Verdcourt, B, 1971b. Annonaceae. In: Milne-Redhead E, Polhill RM (Eds) Flora of Tropical East Africa. Crown Agents for Oversea Governments and Administrations, London" title="Annonaceae. In: Milne-Redhead E, Polhill RM (Eds) Flora of Tropical East Africa." year="1971 b">Verdcourt (1971b)</bibRefCitation>
, who did not have adequate material to formally describe it. Additional material now supports
<normalizedToken originalValue="Verdcourts">Verdcourt's</normalizedToken>
taxonomy.
</paragraph>
</subSubSection>
</treatment>
</document>