View source for Merremia

{{Treatment/ID
|accepted_name=Merremia
|accepted_authority=Dennstedt ex Endlicher
|publications={{Treatment/Publication
|title=Gen. Pl.
|place=18: 1403. 1841
|year=1841
|other_info_on_pub=name conserved
}}
|basionyms=
|synonyms=
|hierarchy=Convolvulaceae;Merremia
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Convolvulaceae]]</div><div class="higher-taxon"><small>genus</small>[[Merremia]]</div></div>
|etymology=Presumably for Blasius Merrem, 1763–1824, German professor
|volume=Volume 14
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Perennials </b>[shrubs]. <b>Stems</b> twining-climbing [erect or prostrate], glabrous or hairy. <b>Leaves</b> petiolate; blade usually palmately lobed or palmately compound, sometimes not lobed or compound, 15–70(–150) mm, surfaces glabrous or hairy. <b>Inflorescences</b> 2–12(–20+)-flowered cymes or umbelliform clusters or flowers solitary. <b>Flowers</b>: sepals oblong, ovate, ovate-lanceolate, or rhombic, 3–30 mm, glabrous or hairy; corolla usually cream, white, white with purplish throat, or yellow, rarely rose, campanulate to funnelform, 15–60 mm, limb subentire or 5-toothed, -angled or -lobed; anthers twisted after dehiscence; pollen usually 3–9-colpate, rarely aggrecolpate, not echinate; styles 1; stigmas globose or 2-lobed, lobes globose. <b>Fruits</b> capsular, usually ± globose, sometimes quadrangular, dehiscence irregular or valvate. <b>Seeds</b> 1–4(–6), ± trigonous, glabrous or hairy. <b>x</b> = 15.</span><!--

-->{{Treatment/Body
|distribution=s United States;Old World subtropics and tropics;introduced in Mexico;West Indies;Central America;South America.
|discussion=<p>Species 80+ (6 in the flora).</p><!--
--><p>Merremia hastata Hallier f. [≡ M. tridentata (Linnaeus) Hallier f. subsp. hastata Ooststroom, Xenostegia tridentata (Linnaeus) D. F. Austin & Staples subsp. hastata (Ooststroom) Parmar] was recorded from ballast in Georgia in 1902; it evidently did not persist in the flora area.</p><!--
--><p>A. R. Samões and G. W. Staples (2017) treated Merremia aegyptia as Distimake aegyptius (Linnaeus) A. R. Samões & Staples, M. cissoides as D. cissoides (Lamarck) A. R. Samões & Staples, M. dissecta as D. dissectus (Jacquin) A. R. Samões & Staples, M. quinquefolia as D. quinquefolius (Linnaeus) A. R. Samões & Staples, M. tuberosa as D. tuberosus (Linnaeus) A. R. Samões & Staples, and M. umbellata as Camonea umbellata (Linnaeus) A. R. Samões & Staples.</p>
|tables=
|references=
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Leaf blades not lobed or compound; inflorescences usually 3–20+-flowered umbellform clusters, flowers rarely solitary.
|[[Merremia umbellata|Merremia umbellata]]
|-id=key-0-1
|1
|Leaf blades palmately lobed or compound; inflorescences 2–9-flowered cymes or flowers solitary.
|[[#key-0-2| > 2]]
|-id=key-0-2
|2
|Leaf blades palmately lobed.
|[[#key-0-3| > 3]]
|-id=key-0-3
|3
|Leaf lobe margins crenate, dentate, or irregularly pinnati-sinuate; corollas white with purplish throats.
|[[Merremia dissecta|Merremia dissecta]]
|-id=key-0-3
|3
|Leaf lobe margins entire; corollas yellow.
|[[Merremia tuberosa|Merremia tuberosa]]
|-id=key-0-2
|2
|Leaf blades palmately compound.
|[[#key-0-4| > 4]]
|-id=key-0-4
|4
|Leaflet margins dentate or entire; sepal abaxial surfaces hirsute, glabrescent.
|[[Merremia aegyptia|Merremia aegyptia]]
|-id=key-0-4
|4
|Leaflet margins usually dentate, sometimes remotely serrate to subentire, rarely entire; sepal abaxial surfaces glabrous or hairy, hairs glandular and setaceous.
|[[#key-0-5| > 5]]
|-id=key-0-5
|5
|Sepals: outer and inner 10–18 mm, apex acuminate, abaxial surface hairy, hairs glandular and setaceous.
|[[Merremia cissoides|Merremia cissoides]]
|-id=key-0-5
|5
|Sepals: outer 3–5 mm, inner 4–7 mm, apex obtuse, abaxial surface glabrous.
|[[Merremia quinquefolia|Merremia quinquefolia]]
|}
</div></div><!--

-->{{#Taxon:
name=Merremia
|author=Daniel F. Austin†
|authority=Dennstedt ex Endlicher
|rank=genus
|parent rank=family
|synonyms=
|basionyms=
|family=Convolvulaceae
|distribution=s United States;Old World subtropics and tropics;introduced in Mexico;West Indies;Central America;South America.
|reference=None
|publication title=Gen. Pl.
|publication year=1841
|special status=
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/master/coarse_grained_fna_xml/V14/V14_653.xml
|genus=Merremia
}}<!--

-->[[Category:Treatment]][[Category:Convolvulaceae]]