View source for Carex sect. Leucoglochin

{{Treatment/ID
|accepted_name=Carex sect. Leucoglochin
|accepted_authority=Dumortier
|publications={{Treatment/Publication
|title=Fl. Belg.,
|place=146. 1827
|year=1827
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Carex sect. Orthocerates
|authority=Koch
|rank=section
}}
|hierarchy=Cyperaceae;Carex;Carex sect. Leucoglochin
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Cyperaceae]]</div><div class="higher-taxon"><small>genus</small>[[Carex]]</div><div class="higher-taxon"><small>section</small>[[Carex sect. Leucoglochin]]</div></div>
|volume=Volume 23
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="whole_organism growth form;whole_organism growth form;whole_organism size or length;whole_organism architecture;whole_organism growth form"><b>Plants </b>cespitose or not, short to long rhizomatous.</span> <span class="statement" id="st-d0_s1" data-properties="culm coloration"><b>Culms </b>pale-brown at base.</span> <span class="statement" id="st-d0_s2" data-properties="basal sheath texture"><b>Leaves:</b> basal sheaths not fibrous;</span> <span class="statement" id="st-d0_s3" data-properties="sheath front texture">sheath fronts membranous;</span> <span class="statement" id="st-d0_s4" data-properties="blade shape;cross-section pubescence">blades V-shaped in cross-section when young, glabrous.</span> <span class="statement" id="st-d0_s5" data-properties="inflorescence quantity"><b>Inflorescence </b>1 spike per culm;</span> <span class="statement" id="st-d0_s6" data-properties="bract presence">bracts absent;</span> <span class="statement" id="st-d0_s7" data-properties="spike reproduction">spike androgynous.</span> <span class="statement" id="st-d0_s8" data-properties="scale architecture;scale duration;scale some measurement;scale height or length or size;apex shape;apex shape"><b>Proximal </b>pistillate scales soon deciduous, less than 10 mm, shorter than perigynium, apex obtuse or subacute.</span> <span class="statement" id="st-d0_s9" data-properties="perigynium orientation;perigynium orientation;perigynium architecture;perigynium architecture;perigynium shape;perigynium shape;base shape;base texture;apex shape;apex pubescence"><b>Perigynia </b>at first erect, becoming deflexed, obscurely veined, very obliquely substipitate, lance-subulate to narrowly elongate-oblong, almost round in cross-section, base tapered and spongy, apex tapering gradually to beak, glabrous;</span> <span class="statement" id="st-d0_s10" data-properties="beak some measurement;orifice architecture or shape">beak less than 2 mm, orifice truncate.</span> <span class="statement" id="st-d0_s11" data-properties="stigma quantity"><b>Stigmas </b>3.</span> <span class="statement" id="st-d0_s12" data-properties="achene shape;achene shape;achene shape;achene size;side shape"><b>Achenes </b>narrowly oblong or narrowly oblong-lanceoloid, trigonous with sides concave proximally, much smaller than bodies of perigynia;</span> <span class="statement" id="st-d0_s13" data-properties="style duration">style persistent.</span><!--

-->{{Treatment/Body
|distribution=Widespread in arctic;boreal;and alpine regions of North America and Eurasia;w and s South America;c Asia
|discussion=<p>Species 5 or 6 (2 in the flora).</p><!--
--><p>Members of Carex sect. Leucoglochin are further characterized by pistillate scales that fall very early.</p>
|tables=
|references=
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Perigynia 3.4–4.7 mm (excluding rachilla); rachilla exserted 0.5–2.8 mm from orifice of beak, exceeding style, style not exserted; pistillate scales (except the proximal) 2.4–3 mm; proximal leaves blade-bearing.
|[[Carex microglochin|Carex microglochin]]
|-id=key-0-1
|1
|Perigynia (5–)5.9–7.8 mm; rachilla vestigial, style exserted; pistillate scales 3.7–5.9 mm; proximal leaves bladeless.
|[[Carex pauciflora|Carex pauciflora]]
|}
</div></div><!--

-->{{#Taxon:
name=Carex sect. Leucoglochin
|author=Theodore S. Cochrane
|authority=Dumortier
|rank=section
|parent rank=genus
|synonyms=Carex sect. Orthocerates
|basionyms=
|family=Cyperaceae
|distribution=Widespread in arctic;boreal;and alpine regions of North America and Eurasia;w and s South America;c Asia
|reference=None
|publication title=Fl. Belg.,
|publication year=1827
|special status=
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V23/V23_996.xml
|genus=Carex
|section=Carex sect. Leucoglochin
|achene shape=trigonous;oblong-lanceoloid;oblong
|achene size=much smaller
|apex pubescence=glabrous
|apex shape=tapering;subacute;obtuse
|basal sheath texture=not fibrous
|base shape=tapered
|base texture=spongy
|beak some measurement=0mm;2mm
|blade shape=v--shaped
|bract presence=absent
|cross-section pubescence=glabrous
|culm coloration=pale-brown
|inflorescence quantity=1
|orifice architecture or shape=truncate
|perigynium architecture=substipitate;veined
|perigynium orientation=deflexed;erect
|perigynium shape=round;lance-subulate;narrowly elongate-oblong
|scale architecture=pistillate
|scale duration=deciduous
|scale height or length or size=shorter
|scale some measurement=0mm;10mm
|sheath front texture=membranous
|side shape=concave
|spike reproduction=androgynous
|stigma quantity=3
|style duration=persistent
|whole_organism architecture=rhizomatous
|whole_organism growth form=plant;not;cespitose
|whole_organism size or length=short to long
}}<!--

-->[[Category:Treatment]][[Category:Carex]]