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<document ID-DOI="http://dx.doi.org/10.3897/phytokeys.207.61432" ID-Pensoft-Pub="1314-2003-207-1" ID-Pensoft-UUID="29CD4EF8FB525DBAA022DF25CDB649C9" ModsDocID="1314-2003-207-1" checkinTime="1663699675791" checkinUser="pensoft" docAuthor="Couvreur, Thomas L. P., Dagallier, Leo-Paul M. J., Crozier, Francoise, Ghogue, Jean-Paul, Hoekstra, Paul H., Kamdem, Narcisse G., Johnson, David M., Murray, Nancy A. &amp; Sonke, Bonaventure" docDate="2022" docId="20EAEE0E202267367179B8B581C7AD91" docLanguage="en" docName="PhytoKeys 207: 1-532" docOrigin="PhytoKeys 207" docPubDate="2022-09-20" docSource="http://dx.doi.org/10.3897/phytokeys.207.61432" docTitle="Piptostigma oyemense Pellegr., Notul. Syst. (Paris) 14: 75 1950" docType="treatment" docVersion="1" id="29CD4EF8FB525DBAA022DF25CDB649C9" lastPageNumber="1" masterDocId="29CD4EF8FB525DBAA022DF25CDB649C9" masterDocTitle="Flora of Cameroon - Annonaceae Vol 45" masterLastPageNumber="532" masterPageNumber="1" pageNumber="1" updateTime="1663699675791" updateUser="pensoft">
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<mods:titleInfo>
<mods:title>Flora of Cameroon - Annonaceae Vol 45</mods:title>
</mods:titleInfo>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Couvreur, Thomas L. P.</mods:namePart>
<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0002-8509-6587</mods:nameIdentifier>
<mods:affiliation>IRD, DIADE, Univ Montpellier, Montpellier, France &amp; Universite de Yaounde I, Ecole Normale Superieure, Departement des Sciences Biologiques, Laboratoire de Botanique systematique et d'Ecologie, B. P. 047, Yaounde, Cameroon &amp; Naturalis Biodiversity Center, Botany Section, Darwinweg 2, 2333 CR Leiden, Netherlands</mods:affiliation>
<mods:nameIdentifier type="email">thomas.couvreur@ird.fr</mods:nameIdentifier>
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<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Dagallier, Leo-Paul M. J.</mods:namePart>
<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0002-3270-1544</mods:nameIdentifier>
<mods:affiliation>IRD, DIADE, Univ Montpellier, Montpellier, France</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Crozier, Francoise</mods:namePart>
<mods:affiliation>IRD, DIADE, Univ Montpellier, Montpellier, France</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Ghogue, Jean-Paul</mods:namePart>
<mods:affiliation>Universite de Yaounde I, Ecole Normale Superieure, Departement des Sciences Biologiques, Laboratoire de Botanique systematique et d'Ecologie, B. P. 047, Yaounde, Cameroon &amp; Green Connexion, Environmental Group, siege face GP Melen, a cote de l'immeuble Palais des verres. Yaounde, Cameroun</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Hoekstra, Paul H.</mods:namePart>
<mods:affiliation>Naturalis Biodiversity Center, Botany Section, Darwinweg 2, 2333 CR Leiden, Netherlands</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Kamdem, Narcisse G.</mods:namePart>
<mods:affiliation>Universite de Yaounde I, Ecole Normale Superieure, Departement des Sciences Biologiques, Laboratoire de Botanique systematique et d'Ecologie, B. P. 047, Yaounde, Cameroon</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Johnson, David M.</mods:namePart>
<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0003-2896-7419</mods:nameIdentifier>
<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:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Sonke, Bonaventure</mods:namePart>
<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0002-4310-3603</mods:nameIdentifier>
<mods:affiliation>Universite de Yaounde I, Ecole Normale Superieure, Departement des Sciences Biologiques, Laboratoire de Botanique systematique et d'Ecologie, B. P. 047, Yaounde, Cameroon</mods:affiliation>
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<mods:title>PhytoKeys</mods:title>
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<mods:date>2022</mods:date>
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<mods:number>2022-09-20</mods:number>
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<mods:number>207</mods:number>
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<treatment LSID="urn:lsid:plazi:treatment:20EAEE0E202267367179B8B581C7AD91" httpUri="http://treatment.plazi.org/id/20EAEE0E202267367179B8B581C7AD91" lastPageNumber="1" pageId="0" pageNumber="1">
<subSubSection pageId="0" pageNumber="1" type="nomenclature">
<paragraph pageId="0" pageNumber="1">
<taxonomicName authority="Pellegr., Notul. Syst. (Paris) 14: 75, 1950" authorityName="Pellegr., Notul. Syst. (Paris) 14: 75" authorityYear="1950" class="Magnoliopsida" family="Annonaceae" genus="Piptostigma" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Piptostigma oyemense" order="Magnoliales" pageId="0" pageNumber="1" phylum="Tracheophyta" rank="species" species="oyemense">Piptostigma oyemense Pellegr., Notul. Syst. (Paris) 14: 75, 1950</taxonomicName>
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="description">
<paragraph pageId="0" pageNumber="1">
<figureCitation captionStart="Figure 91" captionStartId="F102" captionText="Figure 91. Piptostigma multinervium A habit, note numerous cauliflorous inflorescences along the trunk B base of leaf blade, upper side C base of leaf blade, lower side D flower, one inner petal removed E inflorescence with numerous flowers. Piptostigma oyemense F habit, note single flowered inflorescence G base of leaf blade, upper side H base of leaf blade, lower side I flower, note single flowered inflorescences J detail of receptacle, note 4 carpels K fruit, note white echinate to muricate monocarps A-E Couvreur 616, Ebo, Cameroon F, I-K Couvreur 917, Gabon G, H Couvreur 1139, Gabon. Photos Thomas L. P. Couvreur." figureDoi="10.3897/phytokeys.207.61432.figure91" httpUri="https://binary.pensoft.net/fig/745550" pageId="0" pageNumber="1">Figs 91</figureCitation>
<figureCitation captionStart="Figure 93" captionStartId="F104" captionText="Figure 93. Piptostigma oyemense A branch (with a leaf and a flower) B receptacle C stamen D carpel side view and detail of ovules A-D from Le Testu 9624. Drawings by Helene Lamourdedieu, Publications Scientifiques du Museum national d'Histoire naturelle, Paris; 1 - 6 modified from Le Thomas (1969 b, pl. 21 (drawings 7 - 10), p. 123)." figureDoi="10.3897/phytokeys.207.61432.figure93" httpUri="https://binary.pensoft.net/fig/745552" pageId="0" pageNumber="1">, 93</figureCitation>
<figureCitation captionStart="Map 11" captionStartId="F98" captionText="Map 11. A Piptostigma glabrescens B Piptostigma goslineanum C Piptostigma longepilosum D Piptostigma macranthum E Piptostigma macrophyllum F Piptostigma mayndongtsaeanum G Piptostigma mortehanii H Piptostigma multinervium I Piptostigma oyemense. White borders represent region limits in Cameroon; green patches represent protected areas (see methods and Suppl. material 1: Fig. S 1)." figureDoi="10.3897/phytokeys.207.61432.map11" httpUri="https://binary.pensoft.net/fig/745546" pageId="0" pageNumber="1">; Map 11I</figureCitation>
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="materials_examined">
<paragraph pageId="0" pageNumber="1">
<typeStatus>Type</typeStatus>
.
</paragraph>
<paragraph pageId="0" pageNumber="1">
<materialsCitation collectingDate="1934-06-21" collectorName="Le Testu G. M. P. C." country="Gabon" location="Woleu-Ntem" specimenCount="1" stateProvince="Woleu-Ntem" typeStatus="holotype">
<collectingCountry name="Gabon">Gabon</collectingCountry>
.
<collectingRegion country="Gabon" name="Woleu-Ntem">Woleu-Ntem</collectingRegion>
; Oyem,
<emphasis italics="true" pageId="0" pageNumber="1">
<collectorName>Le Testu G.M.P.C.</collectorName>
9624
</emphasis>
,
<collectingDate value="1934-06-21">21 Jun 1934</collectingDate>
:
<typeStatus>holotype</typeStatus>
: P[P00363276]; isotypes: BR[BR0000008802774, BR0000008802446]; BM[BM000553961]; P[P00363274, P00363275]
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="description">
<paragraph pageId="0" pageNumber="1">Description.</paragraph>
<paragraph pageId="0" pageNumber="1">
Tree, 2-6 m tall, d.b.h. up to 10 cm; stilt roots or buttresses absent. Indumentum of simple hairs; old leafless branches glabrous, young foliate branches pubescent. Leaves: petiole 3-4 mm long, 1-2 mm in diameter, pubescent, cylindrical, blade inserted on top of the petiole; blade 11-27 cm long, 4-9 cm wide,
<emphasis bold="true" pageId="0" pageNumber="1">elliptic</emphasis>
, apex acuminate, acumen 0.2-2.5 cm long,
<emphasis bold="true" pageId="0" pageNumber="1">base cuneate</emphasis>
, papyraceous, below sparsely pubescent when young, glabrous when old, above glabrous when young and old, discolorous, whitish below; midrib impressed, above glabrous when young and old, below pubescent when young, glabrous when old; secondary veins 21 to 29 pairs, glabrous above; tertiary venation percurrent. Individuals bisexual; inflorescence cauliflorous, peduncle like base 7-10 mm long, axial internodes 3-6 mm long,
<emphasis bold="true" pageId="0" pageNumber="1">compact</emphasis>
, sympodial rachis 27-42 mm long. Flowers with 9 perianth parts in 3 whorls, 1 to 2 per inflorescence; pedicel 11-18 mm long, ca. 1 mm in diameter, pubescent; in fruit ca. 12 mm long, ca. 2 mm in diameter, pubescent; basal bract ca. ca. 4 mm long, 2 mm wide; upper bract ca. 4 mm long, ca. 2 mm wide; sepals 3, valvate, free, 5-6 mm long, 3-4 mm wide, ovate, apex acuminate, base truncate, brown, pubescent outside, glabrous inside, margins flat; petals free, outer petals shorter than inner; outer petals 3, 12-14 mm long, 3-4 mm wide, obovate, apex acuminate, base truncate, light green, margins flat, pubescent outside, glabrous inside; inner petals 3, valvate,
<emphasis bold="true" pageId="0" pageNumber="1">40-50 mm long</emphasis>
, 5-10 mm wide, elliptic, apex acute, base truncate, pink, margins wavy, pubescent outside, pubescent inside; stamens numerous, in 6 to 8 rows, ca. 1 mm long, broad; connective discoid, glabrous, red; staminodes absent;
<emphasis bold="true" pageId="0" pageNumber="1">carpels free, 3</emphasis>
, ovary ca. 2 mm long, stigma globose, pubescent. Monocarps sessile, 1 to 3, 30-40 mm long, 25-30 mm in diameter, ellipsoid, apex rounded,
<emphasis bold="true" pageId="0" pageNumber="1">pubescent when immature, glabrous when mature</emphasis>
, verrucose, not ribbed, white with pink when ripe; seeds 3 to 5 per monocarp, 10-15 mm long, 5-10 mm in diameter, ellipsoid; aril absent.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="distribution">
<paragraph pageId="0" pageNumber="1">Distribution.</paragraph>
<paragraph pageId="0" pageNumber="1">Known from Cameroon to Gabon; in Cameroon known from South and South-West regions.</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="habitat">
<paragraph pageId="0" pageNumber="1">Habitat.</paragraph>
<paragraph pageId="0" pageNumber="1">A rarely collected species in Cameroon; in rain forests on the slope of mountains. Altitude 450-900 m a.s.l.</paragraph>
<caption doi="10.3897/phytokeys.207.61432.figure93" httpUri="https://binary.pensoft.net/fig/745552" pageId="0" pageNumber="1" start="Figure 93" startId="F104">
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" pageId="0" pageNumber="1">Figure 93.</emphasis>
<taxonomicName authorityName="Pellegr., Notul. Syst. (Paris) 14: 75" authorityYear="1950" class="Magnoliopsida" family="Annonaceae" genus="Piptostigma" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Piptostigma oyemense" order="Magnoliales" pageId="0" pageNumber="1" phylum="Tracheophyta" rank="species" species="oyemense">
<emphasis italics="true" pageId="0" pageNumber="1">Piptostigma oyemense</emphasis>
</taxonomicName>
<emphasis bold="true" pageId="0" pageNumber="1">A</emphasis>
branch (with a leaf and a flower)
<emphasis bold="true" pageId="0" pageNumber="1">B</emphasis>
receptacle
<emphasis bold="true" pageId="0" pageNumber="1">C</emphasis>
stamen
<emphasis bold="true" pageId="0" pageNumber="1">D</emphasis>
carpel side view and detail of ovules
<emphasis bold="true" pageId="0" pageNumber="1">A-D</emphasis>
from
<emphasis italics="true" pageId="0" pageNumber="1">Le Testu 9624</emphasis>
. Drawings by
<normalizedToken originalValue="Hélène">Helene</normalizedToken>
Lamourdedieu, Publications Scientifiques du
<normalizedToken originalValue="Muséum">Museum</normalizedToken>
national
<normalizedToken originalValue="dHistoire">d'Histoire</normalizedToken>
naturelle, Paris; 1-6 modified from
<bibRefCitation author="Le Thomas, A" editor="Aubreville, A" journalOrPublisher="Museum National d'Histoire Naturelle, Paris" pageId="0" pageNumber="1" pagination="1 - 371" refId="B179" refString="Le Thomas, A, 1969b. Annonacees. In: Aubreville, A, Ed., Flore du Gabon. Museum National d'Histoire Naturelle, Paris: 1 - 371" title="Annonacees." volumeTitle="Flore du Gabon." year="1969 b">Le Thomas (1969b</bibRefCitation>
, pl. 21 (drawings 7-10), p. 123).
</paragraph>
</caption>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="local and common names known in cameroon">
<paragraph pageId="0" pageNumber="1">Local and common names known in Cameroon.</paragraph>
<paragraph pageId="0" pageNumber="1">None recorded.</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="iucn conservation status">
<paragraph pageId="0" pageNumber="1">IUCN conservation status.</paragraph>
<paragraph pageId="0" pageNumber="1">
Vulnerable B2ab(iii) (
<bibRefCitation DOI="https://doi.org/10.2305/IUCN.UK.2019-3.RLTS.T132512369A132513599.en" author="Cosiaux, A" journalOrPublisher="Yale School of the Environment Bulletin Series" pageId="0" pageNumber="1" refId="B41" refString="Cosiaux, A, Couvreur, TLP, Erkens, RHJ, 2019a. Annickia affinis. The IUCN Red List of Threatened Species: e.T132512369A132513599. https://doi.org/10.2305/IUCN.UK.2019-3.RLTS.T132512369A132513599.en" title="Annickia affinis. The IUCN Red List of Threatened Species: e. T 132512369 A 132513599." url="https://doi.org/10.2305/IUCN.UK.2019-3.RLTS.T132512369A132513599.en" year="2019 a">Cosiaux et al. 2019a</bibRefCitation>
p).
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="uses in cameroon">
<paragraph pageId="0" pageNumber="1">Uses in Cameroon.</paragraph>
<paragraph pageId="0" pageNumber="1">None reported.</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="notes">
<paragraph pageId="0" pageNumber="1">Notes.</paragraph>
<paragraph pageId="0" pageNumber="1">
<taxonomicName authorityName="Pellegr., Notul. Syst. (Paris) 14: 75" authorityYear="1950" class="Magnoliopsida" family="Annonaceae" genus="Piptostigma" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Piptostigma oyemense" order="Magnoliales" pageId="0" pageNumber="1" phylum="Tracheophyta" rank="species" species="oyemense">
<emphasis italics="true" pageId="0" pageNumber="1">Piptostigma oyemense</emphasis>
</taxonomicName>
is characterized by its elliptic leaf blades, glabrous on both sides when old, and its inflorescence usually with a single flower (rarely 2) and 3 carpels. The only other species with a single flower per inflorescence
<emphasis italics="true" pageId="0" pageNumber="1">and</emphasis>
up few carpels (less than 4) is
<taxonomicName lsidName="P. fugax" pageId="0" pageNumber="1" rank="species" species="fugax">
<emphasis italics="true" pageId="0" pageNumber="1">P. fugax</emphasis>
</taxonomicName>
, which has obovate to very narrowly obovate leaf blades, a cuneate leaf base (versus obtuse to acute), a pubescent midrib on the upper ide (versus glabrous), the longer inner petals between 20-40 mm long (versus 40-50 mm) and the tomentose monocarps (versus glabrous when mature).
</paragraph>
<paragraph pageId="0" pageNumber="1">
Cheek and Cable (1998, p. 11) mention two specimens as
<taxonomicName authorityName="Oliv., J. Linn. Soc., Bot. 8: 158" authorityYear="1864" class="Magnoliopsida" family="Annonaceae" genus="Piptostigma" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Piptostigma" order="Magnoliales" pageId="0" pageNumber="1" phylum="Tracheophyta" rank="genus">
<emphasis italics="true" pageId="0" pageNumber="1">Piptostigma</emphasis>
</taxonomicName>
sp. nov. (
<emphasis italics="true" pageId="0" pageNumber="1">Akogo 34</emphasis>
,
<emphasis italics="true" pageId="0" pageNumber="1">Harris 3755</emphasis>
) collected from Mont Cameroon. We identified the former as
<taxonomicName lsidName="P. oyemense" pageId="0" pageNumber="1" rank="species" species="oyemense">
<emphasis italics="true" pageId="0" pageNumber="1">P. oyemense</emphasis>
</taxonomicName>
. We did not see
<emphasis italics="true" pageId="0" pageNumber="1">Harris 3755</emphasis>
.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="materials_examined">
<paragraph pageId="0" pageNumber="1">Specimens examined.</paragraph>
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" pageId="0" pageNumber="1">South Region</emphasis>
:
<materialsCitation collectingDate="1993-10-05" collectingDateMax="2013-12-12" collectingDateMin="1993-10-05" collectorName="Akom II, Kamdem N., Akogo M." latitude="4.28" location="South-West Region" longLatPrecision="558" longitude="9.06" specimenCount="1">
<collectorName>Akom II</collectorName>
,
<geoCoordinate degrees="2.78" direction="north" orientation="latitude" precision="555" value="2.78">2.78°N</geoCoordinate>
,
<geoCoordinate degrees="10.55" direction="east" orientation="longitude" precision="555" value="10.55">10.55°E</geoCoordinate>
,
<emphasis italics="true" pageId="0" pageNumber="1">
<collectingDate value="2013-12-12">12 December 2013</collectingDate>
</emphasis>
,
<emphasis italics="true" pageId="0" pageNumber="1">
<collectorName>Kamdem N.</collectorName>
</emphasis>
159 (YA).
<emphasis bold="true" pageId="0" pageNumber="1">
<location LSID="urn:lsid:plazi:treatment:20EAEE0E202267367179B8B581C7AD91:1A4473DD7306E413D1E69F807FD657CF" latitude="4.28" longLatPrecision="558" longitude="9.06" name="South-West Region">South-West Region</location>
</emphasis>
: Bomana,
<geoCoordinate degrees="4.28" direction="north" orientation="latitude" precision="555" value="4.28">4.28°N</geoCoordinate>
,
<geoCoordinate degrees="9.060" direction="east" orientation="longitude" precision="55" value="9.06">9.060°E</geoCoordinate>
,
<emphasis italics="true" pageId="0" pageNumber="1">
<collectingDate value="1993-10-05">05 October 1993</collectingDate>
</emphasis>
,
<emphasis italics="true" pageId="0" pageNumber="1">
<collectorName>Akogo M.</collectorName>
</emphasis>
34 (K,YA)
</materialsCitation>
.
</paragraph>
</subSubSection>
</treatment>
</document>