View source for Juncus subg. Genuini

{{Treatment/ID
|accepted_name=Juncus subg. Genuini
|accepted_authority=Buchenau
|publications={{Treatment/Publication
|title=Abhandlungen herausgegeben vom naturwissenschaftlichen Vereine zu Bremen
|place=4: 406. 1875
|year=1875
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Juncus sect. Genuini
|authority=(Buchenau) Dumortier
|rank=section
}} {{Treatment/ID/Synonym
|name=Juncus sect. Juncotypus
|authority=Dumortier
|rank=section
}} {{Treatment/ID/Synonym
|name=Juncus subg. Juncotypus
|authority=(Dumortier) Kreczetowicz & Gontscharow
|rank=subgenus
}}
|hierarchy=Juncaceae;Juncus;Juncus subg. Genuini
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Juncaceae]]</div><div class="higher-taxon"><small>genus</small>[[Juncus]]</div><div class="higher-taxon"><small>subgenus</small>[[Juncus subg. Genuini]]</div></div>
|volume=Volume 22
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> perennial, rhizomatous. <b>Culms</b> terete. <b>Leaves</b> basal; blade usually absent, rarely present (<i>J. hallii</i> and <i>J. parryi</i>), if present terete, channeled, not septate. <b>Inflorescences</b> lateral cymes, sympodial; bracts erect, terete, appearing to be continuation of culms; bracteoles 2, at base of perianth. <b>Flowers</b> borne singly, not in heads. <b>Capsules</b> 3-locular. <b>Seeds</b> usually not tailed.</span><!--

-->{{Treatment/Body
|distribution=Worldwide.
|discussion=<p>Species ca. 25 (11 in the flora).</p>
|tables=
|references={{Treatment/Reference
|id=ahti1980b
|text=Ahti, L. 1980. The Juncus effusus aggregate in eastern North America. Ann. Bot. Fennici 17: 183--191.
}}{{Treatment/Reference
|id=fernald1910b
|text=Fernald, M. L. and K. M. Wiegand. 1910. The North American variation of Juncus effusus. Rhodora 12: 81--93. Hamet-
}}{{Treatment/Reference
|id=stace1970a
|text=Stace, C. A. 1970. Anatomy and taxonomy in Juncus subgenus Genuini. Bot. J. Linn. Soc. 63(suppl. 11): 75--81.
}}
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Flowers 1–3(–5); seeds tailed.
|[[#key-0-2| > 2]]
|-id=key-0-1
|1
|Flowers more than 5.
|[[#key-0-4| > 4]]
|-id=key-0-2
|2
|Leaf blade reduced to bristle
|[[Juncus drummondii|Juncus drummondii]]
|-id=key-0-2
|2
|Leaf blade well developed.
|[[#key-0-3| > 3]]
|-id=key-0-3
|3
|Perianth 6–9 mm; capsules oblong, acute
|[[Juncus parryi|Juncus parryi]]
|-id=key-0-3
|3
|Perianth 4–5 mm; capsules ovoid, retuse
|[[Juncus hallii|Juncus hallii]]
|-id=key-0-4
|4
|Culms well spaced along sparingly branched creeping rhizomes.
|[[#key-0-5| > 5]]
|-id=key-0-4
|4
|Culms tufted on short, densely branching rhizomes.
|[[#key-0-8| > 8]]
|-id=key-0-5
|5
|Anthers shorter than filaments; tepals greenish; capsules green to light brown
|[[Juncus filiformis|Juncus filiformis]]
|-id=key-0-5
|5
|Anthers equal to or longer than filaments.
|[[#key-0-6| > 6]]
|-id=key-0-6
|6
|Fruits acute.
|[[#key-0-7| > 7]]
|-id=key-0-6
|6
|Fruits obtuse
|[[Juncus textilis|Juncus textilis]]
|-id=key-0-7
|7
|Perianth usually 3–6 mm
|[[Juncus arcticus|Juncus arcticus]]
|-id=key-0-7
|7
|Perianth (5–)6–8 mm
|[[Juncus lesueurii|Juncus lesueurii]]
|-id=key-0-8
|8
|Stamens 3
|[[Juncus effusus|Juncus effusus]]
|-id=key-0-8
|8
|Stamens 6.
|[[#key-0-9| > 9]]
|-id=key-0-9
|9
|Plants cespitose, stooling; capsules 3–4 mm
|[[Juncus inflexus|Juncus inflexus]]
|-id=key-0-9
|9
|Plants cespitose, not stooling; capsules less than 3 mm.
|[[#key-0-10| > 10]]
|-id=key-0-10
|10
|Perianth much shorter than capsule; seeds 0.7–1 mm
|[[Juncus gymnocarpus|Juncus gymnocarpus]]
|-id=key-0-10
|10
|Perianth equal to or exceeding capsule; seeds 0.4–0.5 mm
|[[Juncus patens|Juncus patens]]
|}
</div></div><!--

-->{{#Taxon:
name=Juncus subg. Genuini
|authority=Buchenau
|rank=subgenus
|parent rank=genus
|synonyms=Juncus sect. Genuini;Juncus sect. Juncotypus;Juncus subg. Juncotypus
|basionyms=
|family=Juncaceae
|distribution=Worldwide.
|reference=ahti1980b;fernald1910b;stace1970a
|publication title=Abhandlungen herausgegeben vom naturwissenschaftlichen Vereine zu Bremen
|publication year=1875
|special status=
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V22/V22_340.xml
|genus=Juncus
|subgenus=Juncus subg. Genuini
}}<!--

-->[[Category:Treatment]][[Category:Juncus]]