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-d0_s0" data-properties="whole_organism duration;whole_organism architecture;whole_organism growth form"><b>Herbs,</b> perennial, rhizomatous.</span> <span class="statement" id="st-d0_s1" data-properties="culm shape"><b>Culms </b>terete.</span> <span class="statement" id="st-d0_s2" data-properties="leaf position"><b>Leaves </b>basal;</span> <span class="statement" id="st-d0_s3" data-properties="blade presence;blade presence;blade presence;blade shape;blade shape;blade architecture">blade usually absent, rarely present (J. hallii and J. parryi), if present terete, channeled, not septate.</span> <span class="statement" id="st-d0_s4" data-properties="inflorescence architecture"><b>Inflorescences </b>lateral cymes, sympodial;</span> <span class="statement" id="st-d0_s5" data-properties="bract orientation;bract shape">bracts erect, terete, appearing to continuation of culms;</span> <span class="statement" id="st-d0_s6" data-properties="bracteole quantity">bracteoles 2, at base of perianth.</span> <span class="statement" id="st-d0_s7" data-properties="head arrangement"><b>Flowers </b>borne singly, not in heads.</span> <span class="statement" id="st-d0_s8" data-properties="capsule architecture or structure in adjective form"><b>Capsules </b>3-locular.</span> <span class="statement" id="st-d0_s9" data-properties="seed shape"><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://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/62857cf6bca5c4637d27b113da92d27dbf9962f4/V22/V22_340.xml
|genus=Juncus
|subgenus=Juncus subg. Genuini
|blade architecture=not septate
|blade presence=absent;absent;absent
|blade shape=channeled;terete
|bract orientation=erect
|bract shape=terete
|bracteole quantity=2
|capsule architecture or structure in adjective form=3-locular
|culm shape=terete
|head arrangement=singly
|inflorescence architecture=sympodial
|leaf position=basal
|seed shape=tailed
|whole_organism architecture=rhizomatous
|whole_organism duration=perennial
|whole_organism growth form=herb
}}<!--

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