View source for Gonolobus

{{Treatment/ID
|accepted_name=Gonolobus
|accepted_authority=Michaux
|publications={{Treatment/Publication
|title=Fl. Bor.-Amer.
|place=1: 119. 1803
|year=1803
}}
|basionyms={{Treatment/ID/Basionym
|name=Vincetoxicum
|authority=Walter
|rank=genus
|publication_title=Fl. Carol.,
|publication_place=13, 104.  1788
}}
|synonyms=
|hierarchy=Apocynaceae;Gonolobus
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Apocynaceae]]</div><div class="higher-taxon"><small>genus</small>[[Gonolobus]]</div></div>
|etymology=Greek gonia, angle, and lobos, pod, alluding to follicle shape
|volume=Volume 14
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Vines,</b> herbaceous [woody], perennial; latex white, rarely clear. <b>Stems</b> twining, unarmed, eglandular-pubescent or mixed eglandular- and glandular-pubescent. <b>Leaves</b> deciduous [persistent], opposite, petiolate; stipular colleters 2, 1 borne at base of petiole on each side, interpetiolar colleters absent [present], infrapetiolar colleters absent; laminar colleters present. <b>Inflorescences</b> extra-axillary, racemiform [paniculiform, umbelliform], pedunculate. <b>Flowers</b>: calycine colleters present [absent]; corolla white, light yellow, uniformly green, olive-green, yellow-green, or neon green or multicolored and generally dark maroon or brownish near base and green to yellow-green near tips, rotate, aestivation dextrorse; corolline corona ± annular, sometimes interrupted and developed only in staminal [rarely interstaminal] position, or absent; androecium and gynoecium united into a gynostegium adnate to corolla tube; gynostegial corona of fused staminal and interstaminal segments, lobed [unlobed]; anthers adnate to style, dorsal appendage laminar, locules 2; pollen in each theca massed into rigid, horizontally oriented pollinium, pollinia strongly curved, bearing sterile, navicular portion adjacent to translator, pollinia of adjacent anthers joined by translators to common corpusculum together forming pollinarium. <b>Fruits</b> follicles, solitary or paired, moderately to strongly deflexed, green to brown, ovoid, 5-angled, occasionally fewer-angled, smooth to tuberculate, glabrous or pubescent. <b>Seeds</b> obovate, flattened, winged, not beaked, comose, not arillate. <b>x</b> = 11.</span><!--

-->{{Treatment/Body
|distribution=United States;Mexico;West Indies;Central America;South America;introduced in Africa.
|discussion=<p>Species 100–150 (3 in the flora).</p><!--
--><p>The indumentum in Gonolobus can consist of trichomes of uniform length but more often includes a mixture of long eglandular, short eglandular, and/or short glandular capitate trichomes. Stems, petioles, peduncles, and pedicels may have indumentum in lines or completely around the stalk (ubiquitous).</p>
|tables=
|references=
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Stem trichomes eglandular only; corolla white or light yellow, campanulate at base, tube 2.9–5 mm; corolline corona absent; pollinia suborbiculate to rhombic; seed distal margins entire.
|[[Gonolobus arizonicus|Gonolobus arizonicus]]
|-id=key-0-1
|1
|Stem trichomes eglandular and glandular-capitate; corolla uniformly green, olive-green, yellow-green, or neon green or multicolored and generally dark maroon to brownish near base and green to yellow-green near tips, subcampanulate at base, tube to 1.5 mm; corolline corona present; pollinia ovate; seed distal margins dentate.
|[[#key-0-2| > 2]]
|-id=key-0-2
|2
|Pubescence of internodes ubiquitous, not in lines; calyx lobes 0.2–1 mm wide; corolline corona reduced to small mounds opposite anthers, glabrous.
|[[Gonolobus suberosus|Gonolobus suberosus]]
|-id=key-0-2
|2
|Pubescence of internodes in 2 lines; calyx lobes 1–2 mm wide; corolline corona a distinctly raised ring, pubescent with unicellular hairs 0.1–0.3 mm.
|[[Gonolobus taylorianus|Gonolobus taylorianus]]
|}
</div></div><!--

-->{{#Taxon:
name=Gonolobus
|author=Alexander Krings
|authority=Michaux
|rank=genus
|parent rank=family
|synonyms=
|basionyms=Vincetoxicum
|family=Apocynaceae
|distribution=United States;Mexico;West Indies;Central America;South America;introduced in Africa.
|reference=None
|publication title=Fl. Bor.-Amer.
|publication year=1803
|special status=
|source xml=
|genus=Gonolobus
}}<!--

-->[[Category:Treatment]][[Category:Apocynaceae]]