288 lines
26 KiB
XML
288 lines
26 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/phytokeys.205.82821" ID-GBIF-Dataset="48692519-18e8-4386-993c-557e691208f7" ID-Pensoft-Pub="1314-2003-205-453" ID-Pensoft-UUID="EE97C14B072C545884F09054F6B79DF3" ModsDocID="1314-2003-205-453" checkinTime="1661230043405" checkinUser="pensoft" docAuthor="Koenen, Erik J. M." docDate="2022" docId="8280CC2267BA547895583B890922FA3B" docLanguage="en" docName="PhytoKeys 205: 453-470" docOrigin="PhytoKeys 205" docPubDate="2022-08-22" docSource="http://dx.doi.org/10.3897/phytokeys.205.82821" docTitle="Osodendron leptophyllum E. J. M. Koenen 2022, comb. nov." docType="treatment" docVersion="2" id="EE97C14B072C545884F09054F6B79DF3" lastPageNumber="453" masterDocId="EE97C14B072C545884F09054F6B79DF3" masterDocTitle="Osodendron gen. nov. (Leguminosae, Caesalpinioideae), a new genus of mimosoid legumes of tropical Africa" masterLastPageNumber="470" masterPageNumber="453" pageNumber="453" updateTime="1661230868407" updateUser="ExternalLinkService">
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<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo>
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<mods:title>Osodendron gen. nov. (Leguminosae, Caesalpinioideae), a new genus of mimosoid legumes of tropical Africa</mods:title>
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</mods:titleInfo>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Koenen, Erik J. M.</mods:namePart>
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<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0002-4825-4339</mods:nameIdentifier>
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<mods:affiliation>Evolutionary Biology & Ecology, Universite Libre de Bruxelles, Faculte des Sciences, Campus du Solbosch - CP 160 / 12, Avenue F. D. Roosevelt, 50, 1050 Brussels, Belgium</mods:affiliation>
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<mods:nameIdentifier type="email">erikk_botany@gmx.com</mods:nameIdentifier>
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</mods:name>
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<mods:typeOfResource>text</mods:typeOfResource>
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<mods:relatedItem type="host">
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<mods:titleInfo>
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<mods:title>PhytoKeys</mods:title>
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</mods:titleInfo>
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<mods:part>
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<mods:date>2022</mods:date>
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<mods:detail type="pubDate">
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<mods:number>2022-08-22</mods:number>
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</mods:detail>
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<mods:detail type="volume">
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<mods:number>205</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>453</mods:start>
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<mods:end>470</mods:end>
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</mods:extent>
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</mods:part>
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</mods:relatedItem>
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<mods:location>
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<mods:url>http://dx.doi.org/10.3897/phytokeys.205.82821</mods:url>
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</mods:location>
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<mods:classification>journal article</mods:classification>
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<mods:identifier type="DOI">http://dx.doi.org/10.3897/phytokeys.205.82821</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1314-2003-205-453</mods:identifier>
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<mods:identifier type="Pensoft-UUID">EE97C14B072C545884F09054F6B79DF3</mods:identifier>
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</mods:mods>
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<subSection pageId="0" pageNumber="453" type="multiple">
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<treatment LSID="urn:lsid:plazi:treatment:8280CC2267BA547895583B890922FA3B" httpUri="http://treatment.plazi.org/id/8280CC2267BA547895583B890922FA3B" lastPageNumber="453" pageId="0" pageNumber="453">
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<subSubSection pageId="0" pageNumber="453" type="nomenclature">
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<paragraph pageId="0" pageNumber="453">
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3.
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<taxonomicName LSID="8280CC22-67BA-5478-9558-3B890922FA3B" authority="(Harms) E. J. M. Koenen" authorityName="E. J. M. Koenen" authorityYear="2022" baseAuthorityName="E. J. M. Koenen" baseAuthorityYear="2022" family="Fabaceae" genus="Osodendron" higherTaxonomySource="treatment-meta" kingdom="Plantae" lsidName="Osodendron leptophyllum" order="Fabales" pageId="0" pageNumber="453" rank="species" species="leptophyllum" status="comb. nov.">Osodendron leptophyllum (Harms) E.J.M. Koenen</taxonomicName>
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<taxonomicNameLabel pageId="0" pageNumber="453">comb. nov.</taxonomicNameLabel>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="453" type="description">
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<paragraph pageId="0" pageNumber="453">
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<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. A-F Osodendron dinklagei: A trunk of adult specimen in terra firme forest B foliage C detail of pinnae D detail of resting bud and petiolar nectary E inflorescence F pods G distribution map of O. dinklagei and O. leptophyllum as per the legend based on data from Gbif. org H-K O. leptophyllum: H trunk I bipinnate leaf J close-up of leaflets K twig and pods. Images: A-D, F William Hawthorne (FHO) E Xander van der Burgt (K) H-J David Harris (E) K Paul Latham H-K from www. africanplants. senckenberg. de." figureDoi="10.3897/phytokeys.205.82821.figure3" httpUri="https://binary.pensoft.net/fig/733587" pageId="0" pageNumber="453">Fig. 3H-K</figureCitation>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="453" type="reference_group">
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<paragraph pageId="0" pageNumber="453">
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<taxonomicName authorityName="Koenen" authorityYear="2022" baseAuthorityName="Koenen" baseAuthorityYear="2022" class="Magnoliopsida" family="Fabaceae" genus="Albizia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Albizia eriorhachis" order="Fabales" pageId="0" pageNumber="453" phylum="Tracheophyta" rank="species" species="eriorhachis" status="comb. nov.">Albizia eriorhachis</taxonomicName>
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Harms syn. nov., Bot. Jahrb. Syst. 53(3-5): 456. 1915. Type material:
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<emphasis italics="true" pageId="0" pageNumber="453">Chevalier 7777</emphasis>
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(lectotype here designated from amongst the syntypes: P [P00418361] digital image!, isolectotypes: P [P00418360] digital image!, P [P00418362] digital image!, L [L.1992190] digital image!).
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</paragraph>
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<paragraph pageId="0" pageNumber="453">
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<taxonomicName authorityName="Koenen" authorityYear="2022" class="Magnoliopsida" family="Fabaceae" genus="Albizia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Albizia flamignii" order="Fabales" pageId="0" pageNumber="453" phylum="Tracheophyta" rank="species" species="flamignii" status="comb. nov.">Albizia flamignii</taxonomicName>
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De Wild., Pl. Bequaert. 3: 49. 1925. Type material: Democratic Republic of Congo, Kitobola, 12 Sept 1910,
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<emphasis italics="true" pageId="0" pageNumber="453">Flamigni 265</emphasis>
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(lectotype designated here: BR! [BR0000016145290], isolectotypes: BR! [BR0000016145283], BR! [BR0000016145306], P [P00418365], digital image!).
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</paragraph>
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<paragraph pageId="0" pageNumber="453">
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<taxonomicName authorityName="Koenen" authorityYear="2022" baseAuthorityName="Koenen" baseAuthorityYear="2022" class="Magnoliopsida" family="Fabaceae" genus="Cathormion" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Cathormion eriorhachis" order="Fabales" pageId="0" pageNumber="453" phylum="Tracheophyta" rank="species" species="eriorhachis" status="comb. nov.">Cathormion eriorhachis</taxonomicName>
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(Harms) Dandy syn. nov., in F. W. Andrews, Fl. Pl. Anglo-Egypt. Sudan ii. 155. 1952. Type: Based on
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<taxonomicName authorityName="Koenen" authorityYear="2022" baseAuthorityName="Koenen" baseAuthorityYear="2022" class="Magnoliopsida" family="Fabaceae" genus="Albizia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Albizia eriorhachis" order="Fabales" pageId="0" pageNumber="453" phylum="Tracheophyta" rank="species" species="eriorhachis" status="comb. nov.">Albizia eriorhachis</taxonomicName>
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Harms.
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</paragraph>
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<paragraph pageId="0" pageNumber="453">
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<taxonomicName authorityName="Koenen" authorityYear="2022" baseAuthorityName="Koenen" baseAuthorityYear="2022" class="Magnoliopsida" family="Fabaceae" genus="Arthrosamanea" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Arthrosamanea leptophylla subsp. var. var. guineensis" order="Fabales" pageId="0" pageNumber="453" phylum="Tracheophyta" rank="variety" species="leptophylla" status="comb. nov." subSpecies="var." variety="guineensis">Arthrosamanea leptophylla var. guineensis</taxonomicName>
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G.C.C. Gilbert & Boutique, Bull. Jard. Bot.
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<normalizedToken originalValue="État">Etat</normalizedToken>
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Bruxelles 22: 182. 1952. Type material: Democratic Republic of Congo, Yangambi,
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<normalizedToken originalValue="réserve">reserve</normalizedToken>
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flore Isalowe,
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<normalizedToken originalValue="févr">fevr</normalizedToken>
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. 1940,
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<emphasis italics="true" pageId="0" pageNumber="453">Louis 16368</emphasis>
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(BR!).
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</paragraph>
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<paragraph pageId="0" pageNumber="453">
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<taxonomicName authorityName="Koenen" authorityYear="2022" baseAuthorityName="Koenen" baseAuthorityYear="2022" class="Magnoliopsida" family="Fabaceae" genus="Samanea" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Samanea guineensis" order="Fabales" pageId="0" pageNumber="453" phylum="Tracheophyta" rank="species" species="guineensis" status="comb. nov.">Samanea guineensis</taxonomicName>
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(G.C.C. Gilbert & Boutique) Brenan & Brummitt, Bol. Soc. Brot.
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<normalizedToken originalValue="sér">ser</normalizedToken>
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. 2, 39: 202. 1965. Type: Based on
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<taxonomicName authorityName="Koenen" authorityYear="2022" baseAuthorityName="Koenen" baseAuthorityYear="2022" class="Magnoliopsida" family="Fabaceae" genus="Arthrosamanea" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Arthrosamanea leptophylla subsp. var. var. guineensis" order="Fabales" pageId="0" pageNumber="453" phylum="Tracheophyta" rank="variety" species="leptophylla" status="comb. nov." subSpecies="var." variety="guineensis">Arthrosamanea leptophylla var. guineensis</taxonomicName>
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G.C.C. Gilbert & Boutique.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="453" type="basionym">
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<paragraph pageId="0" pageNumber="453">Basionym.</paragraph>
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<paragraph pageId="0" pageNumber="453">
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<taxonomicName authorityName="Harms" authorityYear="1915" class="Magnoliopsida" family="Leguminosae" genus="Albizia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Albizia leptophylla" order="Fabales" pageId="0" pageNumber="453" phylum="Tracheophyta" rank="species" species="leptophylla">
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<emphasis italics="true" pageId="0" pageNumber="453">Albizia leptophylla</emphasis>
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</taxonomicName>
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Harms, Bot. Jahrb. Syst. 53(3-5): 455. 1915.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="453" type="type material">
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<paragraph pageId="0" pageNumber="453">Type material.</paragraph>
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<paragraph pageId="0" pageNumber="453">
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Democratic Republic of Congo, Kimuenza, 17 km S of Leopoldville, August 1910,
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<emphasis italics="true" pageId="0" pageNumber="453">Mildbread 3520</emphasis>
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(lectotype (designated by
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<bibRefCitation author="Villiers, JF" journalOrPublisher="Systematic Botany" pageId="0" pageNumber="453" refId="B24" refString="Villiers, JF, 1989. Leguminosae-Mimosoideae. Flore du Gabon (31): 3-174." title="Leguminosae-Mimosoideae. Flore du Gabon (31): 3 - 174." year="1989">Villiers (1989)</bibRefCitation>
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as holotype, here corrected): HBG [HBG519160] digital image!, isolectotypes: HBG [HBG519161] digital image!, P [P00418364] digital image!).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="453" type="description">
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<paragraph pageId="0" pageNumber="453">Description.</paragraph>
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<paragraph pageId="0" pageNumber="453">
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<emphasis bold="true" italics="true" pageId="0" pageNumber="453">Tree</emphasis>
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or more rarely a
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<emphasis bold="true" italics="true" pageId="0" pageNumber="453">shrub</emphasis>
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, unarmed or with spine-like outgrowths near the base of the bole perhaps associated with adventitious roots (W. Hawthorne, personal communication), to 30 m tall and to 1.25 m in stem diameter, twigs dark with densely scattered small pustular lenticels or sometimes with lighter coloured corky bark. Twigs, stipules, perulate resting buds, all leaf-axes and peduncles covered in dense ferruginous villose indumentum. Foliage consisting of finely divided bipinnate leaves, the leaflets variably ciliate, sometimes with only very few hairs on the margins, the lamina usually glabrous, but sometimes also with a few scattered hairs along the mid-rib on lower surface or rarely pilose or with appressed long hairs on both surfaces especially in lower half, usually distinctly discolourous. The inflorescences consisting of sub-spherical capitula emerging from axillary fascicles of coeval leaves, usually a few below the leaves in the axils of caducous leaves on the same shoots or sometimes also with a few short ramiflorous pseudoracemes, with all leaves caducous, lower down on the branch.
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<emphasis bold="true" italics="true" pageId="0" pageNumber="453">Stipules</emphasis>
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elliptically oblong to asymetrically oblanceolate or falcate, 5-8(-9)
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<normalizedToken originalValue="×">x</normalizedToken>
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2-3 mm, more scarcely pubescent or nearly glabrous on adaxial surface, caducous leaving conspicuous scars, perulae deltoid to ovoid, ca. 1.5-5
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<normalizedToken originalValue="×">x</normalizedToken>
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1.5-3.5 mm.
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<emphasis bold="true" italics="true" pageId="0" pageNumber="453">Leaves</emphasis>
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with (10-)12-30(-35) pairs of pinnae, the lower 1-2 pairs of pinnae often shorter with fewer leaflets, petiole pulvinate and flattened on adaxial side at the base, (0.5-)0.8-2.2(-3) cm long, petiolar nectary usually present, cupular and circular, sessile or shortly stipitate and 0.6-1 mm in diameter, in variable position ranging from just above the pulvinule to just below the basal pair of pinnae, rachis canaliculate although often obscured due to dense pubescence, 8-15(-22) cm long, with 1-4(-6) cupular nectaries between the upper pairs of pinnae, these 0.3-0.6 mm in diameter, pinnae pulvinate and with an adaxial ridge, (0.5-)2.5-5(-7.5) cm long, nearly always the abaxial leaflet of the lowermost pair reduced to a paraphyllidium and the adaxial one somewhat smaller than the other leaflets, with elliptical nectaries ca. 0.1-0.25 mm in diameter between the upper 1-3 leaflet pairs, pinnae with (17-)24-35(-42) leaflet pairs, leaflets sessile, pulvinate, asymmetrically oblong to oblanceolate, base oblique to sometimes hastate, apex rounded to acute, (2-)3-6(-9)
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<normalizedToken originalValue="×">x</normalizedToken>
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(0.3-)0.5-1.2(-2) mm, venation palmately-pinnate brochidodromous, with 2-4 basal veins adaxially next to the mid-rib and 5-8 further secondary veins on each side and reticulate tertiary venation, apart from the mid-rib, all venation often obscure in smaller leaves, otherwise the secondary venation prominent, sometimes only on the lower surface.
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<emphasis bold="true" italics="true" pageId="0" pageNumber="453">Capitula</emphasis>
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2-4 arranged in fascicles, on peduncles ca. 2.7-4.5 cm, dimorphic with ca. 50-70 peripheral flowers and a single elongated central flower. Bracteoles spatulate, ca. 0.5 mm long, pubescent on outer surface. Flowers white, the peripheral ones on pedicels 0.75-2.5 mm. Calyx slenderly campanulate, green, 5-merous, 2-2.5 mm long, densely puberulous on outer surface, the deltoid lobes ca. 0.25 mm long, corolla 4-4.5 mm long, pubescent on outer surface, the lobes 1.8-2 mm long, stamens 10-14, the filaments white, 11-14 mm long, basally fused into a tube 1.5-2.5 mm long, anthers basifixed, pollen released in 32-celled polyads, pistil on a ca. 0.25-0.75(-1.25) mm long stipe, ovary ca. 1-1.5 mm long, pubescent, style 12-16 mm long, stigma shallowly funnel-shaped. Central flower(s) similar to peripheral flowers, but sessile and longer, calyx ca. 2.5 mm long, corolla ca. 6-6.5 mm long, staminal tube 4-6 mm long, exserted beyond corolla tube.
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<emphasis bold="true" italics="true" pageId="0" pageNumber="453">Fruit</emphasis>
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a dark brown to black indehiscent pod that may tardily disintegrate into 1-multiple-seeded parts, the slightly thickened margins usually straight or also often articulate especially around aborted seeds, the valves papery and thin or with somewhat thickened mesocarp, but not really ligneous, when ripe, swollen over the seeds, when well-fertilised, 12-28(-32)-seeded, (4.5-)10-16(-20)
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<normalizedToken originalValue="×">x</normalizedToken>
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0.9-1.3
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<normalizedToken originalValue="×">x</normalizedToken>
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0.4-0.7 cm. Seeds yellowish-brown, 5.5-7.5
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<normalizedToken originalValue="×">x</normalizedToken>
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3-4.5
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<normalizedToken originalValue="×">x</normalizedToken>
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2-3 mm with hard testa and a darker closed pleurogram of 4.5-5.5
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<normalizedToken originalValue="×">x</normalizedToken>
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1.2-1.5 mm.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="453" type="distribution">
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<paragraph pageId="0" pageNumber="453">Distribution.</paragraph>
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<paragraph pageId="0" pageNumber="453">
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Lower Guinea and Congolia in Cameroon, Central African Republic, Gabon, Republic of the Congo, Democratic Republic of Congo, Angola (Fig.
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<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. A-F Osodendron dinklagei: A trunk of adult specimen in terra firme forest B foliage C detail of pinnae D detail of resting bud and petiolar nectary E inflorescence F pods G distribution map of O. dinklagei and O. leptophyllum as per the legend based on data from Gbif. org H-K O. leptophyllum: H trunk I bipinnate leaf J close-up of leaflets K twig and pods. Images: A-D, F William Hawthorne (FHO) E Xander van der Burgt (K) H-J David Harris (E) K Paul Latham H-K from www. africanplants. senckenberg. de." figureDoi="10.3897/phytokeys.205.82821.figure3" httpUri="https://binary.pensoft.net/fig/733587" pageId="0" pageNumber="453">3G</figureCitation>
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).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="453" type="ecology">
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<paragraph pageId="0" pageNumber="453">Ecology.</paragraph>
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<paragraph pageId="0" pageNumber="453">Forest edges and gallery forest.</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="453" type="materials_examined">
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<paragraph pageId="0" pageNumber="453">Representative specimens examined.</paragraph>
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<paragraph pageId="0" pageNumber="453">
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<materialsCitation collectingDate="2022-01-01" collectingDateMax="2022-12-31" collectingDateMin="2022-01-01" collectorName="J. Mildbread" country="Cameroon" location="Cameroon" specimenCount="1">
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<emphasis bold="true" pageId="0" pageNumber="453">
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<collectingCountry name="Cameroon">Cameroon</collectingCountry>
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</emphasis>
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:
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<emphasis italics="true" pageId="0" pageNumber="453">
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<collectorName>J. Mildbread</collectorName>
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8584
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</emphasis>
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(K)
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</materialsCitation>
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;
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<materialsCitation collectingDate="1949-01-26" collectingDateMax="1959-10-16" collectingDateMin="1949-01-26" collectorName="P. Compere, de la Belanzovi, la Lubimbe, A. Michelson" country="Democratic Republic of Congo" county="Lusolo" location="Luidi" municipality="Thysville" specimenCount="1">
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<emphasis bold="true" pageId="0" pageNumber="453">
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<collectingCountry name="Democratic Republic of the Congo">Democratic Republic of Congo</collectingCountry>
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</emphasis>
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:
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<location LSID="urn:lsid:plazi:treatment:8280CC2267BA547895583B890922FA3B:52F8DEC5D133432EA3EF52A84162FF96" country="Democratic Republic of Congo" county="Lusolo" municipality="Thysville" name="Luidi">Luidi</location>
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,
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<collectingMunicipality>Thysville</collectingMunicipality>
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,
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<collectingCounty>Lusolo</collectingCounty>
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,
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<collectingDate value="1959-10-16">16 October 1959</collectingDate>
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,
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<emphasis italics="true" pageId="0" pageNumber="453">
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<collectorName>P. Compere</collectorName>
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610
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</emphasis>
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(BR), Isangi,
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<collectingDate value="1950-02-21">21 February 1950</collectingDate>
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,
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<emphasis italics="true" pageId="0" pageNumber="453">Callens 2363</emphasis>
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(BR), Petite
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<normalizedToken originalValue="vallées">vallees</normalizedToken>
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<normalizedToken originalValue="d’affluente">d'affluente</normalizedToken>
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<collectorName>de la Belanzovi</collectorName>
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,
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<normalizedToken originalValue="près">pres</normalizedToken>
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son confluent avec
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<collectorName>la Lubimbe</collectorName>
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,
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<collectingDate value="1949-01-26">26 January 1949</collectingDate>
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,
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<emphasis italics="true" pageId="0" pageNumber="453">
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<collectorName>A. Michelson</collectorName>
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877
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</emphasis>
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(BR, K)
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</materialsCitation>
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.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="453" type="notes">
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<paragraph pageId="0" pageNumber="453">Notes.</paragraph>
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<paragraph pageId="0" pageNumber="453">
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<taxonomicName family="Fabaceae" genus="Osodendron" kingdom="Plantae" lsidName="Osodendron leptophylla" order="Fabales" pageId="0" pageNumber="453" rank="species" species="leptophylla">
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<emphasis italics="true" pageId="0" pageNumber="453">Osodendron leptophylla</emphasis>
|
||
</taxonomicName>
|
||
is highly variable in number of pinnae per leaf, number and size of leaflets and density and length of the indumentum. No consistent correlations between any of these variations have been found suggesting that the material referred to two heterotypic synonyms is best included under
|
||
<taxonomicName genus="O." lsidName="O. leptophyllum" pageId="0" pageNumber="453" rank="species" species="leptophyllum">
|
||
<emphasis italics="true" pageId="0" pageNumber="453">O. leptophyllum</emphasis>
|
||
</taxonomicName>
|
||
. The first of these is
|
||
<taxonomicName authorityName="Koenen" authorityYear="2022" baseAuthorityName="Koenen" baseAuthorityYear="2022" class="Magnoliopsida" family="Leguminosae" genus="Albizia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Albizia eriorhachis" order="Fabales" pageId="0" pageNumber="453" phylum="Tracheophyta" rank="species" species="eriorhachis">
|
||
<emphasis italics="true" pageId="0" pageNumber="453">Albizia eriorhachis</emphasis>
|
||
</taxonomicName>
|
||
, described by Harms in the same publication as
|
||
<taxonomicName genus="A." lsidName="A. leptophylla" pageId="0" pageNumber="453" rank="species" species="leptophylla">
|
||
<emphasis italics="true" pageId="0" pageNumber="453">A. leptophylla</emphasis>
|
||
</taxonomicName>
|
||
. Specimens from Cameroon, Central African Republic and Gabon, identified as
|
||
<taxonomicName authorityName="Koenen" authorityYear="2022" baseAuthorityName="Koenen" baseAuthorityYear="2022" class="Magnoliopsida" family="Leguminosae" genus="Cathormion" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Cathormion eriorhachis" order="Fabales" pageId="0" pageNumber="453" phylum="Tracheophyta" rank="species" species="eriorhachis">
|
||
<emphasis italics="true" pageId="0" pageNumber="453">Cathormion eriorhachis</emphasis>
|
||
</taxonomicName>
|
||
, appear to be similar to typical
|
||
<taxonomicName genus="O." lsidName="O. leptophyllum" pageId="0" pageNumber="453" rank="species" species="leptophyllum">
|
||
<emphasis italics="true" pageId="0" pageNumber="453">O. leptophyllum</emphasis>
|
||
</taxonomicName>
|
||
, but with relatively large leaflets and denser indumentum. However, the material is not distinct enough to merit recognition as a separate species, given the large variation in leaf dimensions and indumentum in
|
||
<taxonomicName genus="O." lsidName="O. leptophyllum" pageId="0" pageNumber="453" rank="species" species="leptophyllum">
|
||
<emphasis italics="true" pageId="0" pageNumber="453">O. leptophyllum</emphasis>
|
||
</taxonomicName>
|
||
across its range and is here placed in its synonymy.
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="453">
|
||
The second is
|
||
<taxonomicName authorityName="Koenen" authorityYear="2022" baseAuthorityName="Koenen" baseAuthorityYear="2022" class="Magnoliopsida" family="Fabaceae" genus="Samanea" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Samanea guineensis" order="Fabales" pageId="0" pageNumber="453" phylum="Tracheophyta" rank="species" species="guineensis">
|
||
<emphasis italics="true" pageId="0" pageNumber="453">Samanea guineensis</emphasis>
|
||
</taxonomicName>
|
||
, which was originally described as a variety of
|
||
<taxonomicName class="Magnoliopsida" family="Fabaceae" genus="Arthrosamanea" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Arthrosamanea leptophylla" order="Fabales" pageId="0" pageNumber="453" phylum="Tracheophyta" rank="species" species="leptophylla">
|
||
<emphasis italics="true" pageId="0" pageNumber="453">Arthrosamanea leptophylla</emphasis>
|
||
</taxonomicName>
|
||
, based on more numerous pairs of pinnae and leaflets per leaf, but
|
||
<bibRefCitation author="Brenan, JPM" journalOrPublisher="Molecular Phylogenetics and Evolution" pageId="0" pageNumber="453" refId="B6" refString="Brenan, JPM, Brummitt, RK, 1965. New and little-known species from the Flora Zambesiaca area: 19. Leguminosae-Mimosoideae. Boletim da Sociedade Broteriana, serie 2, 39: 189-205." title="New and little-known species from the Flora Zambesiaca area: 19. Leguminosae-Mimosoideae. Boletim da Sociedade Broteriana, serie 2, 39: 189 - 205." year="1965">Brenan and Brummitt (1965)</bibRefCitation>
|
||
found it to be distinctive enough to recognise it at species rank. Apart from the difference in foliage, they noted differences in the indumentum of the calyx and corolla (glabrous to subglabrous, instead of densely puberulent) and a longer exserted staminal tube. I have observed material that fits their observations (e.g.
|
||
<emphasis italics="true" pageId="0" pageNumber="453">Jean Louis 10051</emphasis>
|
||
, BR), but in other collections with the leaf type of "
|
||
<taxonomicName authorityName="Koenen" authorityYear="2022" baseAuthorityName="Koenen" baseAuthorityYear="2022" class="Magnoliopsida" family="Fabaceae" genus="Samanea" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Samanea guineensis" order="Fabales" pageId="0" pageNumber="453" phylum="Tracheophyta" rank="species" species="guineensis">Samanea guineensis</taxonomicName>
|
||
", I have observed dense pubescence on the calyx (e.g.
|
||
<emphasis italics="true" pageId="0" pageNumber="453">Michelson 877</emphasis>
|
||
, BR) and vice versa specimens with ca. 15 pairs of pinnae and a subglabrous calyx (
|
||
<emphasis italics="true" pageId="0" pageNumber="453">Letouzey 9816</emphasis>
|
||
).
|
||
<bibRefCitation author="Villiers, JF" journalOrPublisher="Systematic Botany" pageId="0" pageNumber="453" refId="B24" refString="Villiers, JF, 1989. Leguminosae-Mimosoideae. Flore du Gabon (31): 3-174." title="Leguminosae-Mimosoideae. Flore du Gabon (31): 3 - 174." year="1989">Villiers (1989)</bibRefCitation>
|
||
also judged
|
||
<taxonomicName genus="S." lsidName="S. guineensis" pageId="0" pageNumber="453" rank="species" species="guineensis">
|
||
<emphasis italics="true" pageId="0" pageNumber="453">S. guineensis</emphasis>
|
||
</taxonomicName>
|
||
to be conspecific with
|
||
<taxonomicName genus="S." lsidName="S. leptophylla" pageId="0" pageNumber="453" rank="species" species="leptophylla">
|
||
<emphasis italics="true" pageId="0" pageNumber="453">S. leptophylla</emphasis>
|
||
</taxonomicName>
|
||
, having also seen numerous specimens with intermediate foliage. I follow
|
||
<bibRefCitation author="Villiers, JF" journalOrPublisher="Systematic Botany" pageId="0" pageNumber="453" refId="B24" refString="Villiers, JF, 1989. Leguminosae-Mimosoideae. Flore du Gabon (31): 3-174." title="Leguminosae-Mimosoideae. Flore du Gabon (31): 3 - 174." year="1989">Villiers (1989)</bibRefCitation>
|
||
and place this name in the synonymy of
|
||
<taxonomicName genus="O." lsidName="O. leptophyllum" pageId="0" pageNumber="453" rank="species" species="leptophyllum">
|
||
<emphasis italics="true" pageId="0" pageNumber="453">O. leptophyllum</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</subSection>
|
||
</document> |