View source for Carex lenticularis

{{Treatment/ID
|accepted_name=Carex lenticularis
|accepted_authority=Michaux
|publications={{Treatment/Publication
|title=Fl. Bor.-Amer.
|place=2: 172. 1803
|year=1803
}}
|special_status={{Treatment/ID/Special_status
|code=F
|label=Illustrated
}}{{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms=
|hierarchy=Cyperaceae;Carex;Carex sect. Phacocystis;Carex lenticularis
|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. Phacocystis]]</div><div class="higher-taxon"><small>species</small>[[Carex lenticularis]]</div></div>
|volume=Volume 23
|mention_page=
|treatment_page=page 391
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>cespitose. <b>Culms</b> obtusely angled, glabrous. <b>Leaves</b>: basal sheaths brown; sheaths of proximal leaves glabrous, fronts lacking spots and veins, entire, apex truncate, somewhat prolonged; blades amphistomic, papillose on both surfaces. <b>Proximal</b> bract longer than inflorescence. <b>Spikes</b> erect; proximal 3–4 spikes pistillate, base cuneate or attenuate; terminal 1 spike staminate. <b>Pistillate</b> scales pale brown or black, shorter than perigynia, apex obtuse, awnless. <b>Perigynia</b> ascending, green, veined, tightly enclosing achenes, thin-walled, ellipsoid or ovoid, dull, base truncate, distended, apex acute, glabrous. <b>Achenes</b> not constricted, glaucous.</span><!--

-->{{Treatment/Body
|distribution=Alta.;B.C.;Man.;N.B.;N.S.;N.W.T.;Ont.;P.E.I.;Que.;Sask.;Yukon;Alaska;Ariz.;Calif.;Colo.;Idaho;Maine;Mass.;Mich.;Minn.;Mont.;N.H.;N.Y.;Oreg.;Utah;Vt.;Wash.;Wis.;Wyo.
|discussion=<p>Varieties 5 (5 in the flora).</p><!--
--><p><i>Carex lenticularis</i> is distinctive in vegetative and reproductive characters. Plants are slender, light yellow-green, cespitose, with pale brown basal sheaths and proximal sheaths. The inflorescence bract is longer than the inflorescence, which has a single staminate spike or, in arctic or alpine taxa, a gynecandrous terminal spike. Proximal spikes are not staminate at the apex, unlike other members of sect. Phacocystis in which the proximal spikes may have staminate flowers at the apex. Perigynia are veined, distended at the base by the achenes, white on the proximal half, and stipitate. The amphistomic leaves and high chromosome numbers also distinguish the species, which includes five, usually allopatric, varieties in North America that may be difficult to separate in areas where their ranges overlap. Very closely related species, which may be conspecific, are <i>C. rufina</i> and <i>C. eleusinoides</i> in North America and C. hermannii in Central America. The South American-Australasian C. decidua is also very similar to the complex.</p>
|tables=
|references={{Treatment/Reference
|id=standley1987b
|text=Standley, L. A. 1987b. Taxonomy of the Carex lenticularis complex in eastern North America. Canad. J. Bot. 65: 673–686.
}}
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Terminal spike gynecandrous; proximal spike not exceeding 1.5 cm; peduncle less than 1 cm; perigynia ovoid.
|[[Carex lenticularis var. dolia|Carex lenticularis var. dolia]]
|-id=key-0-1
|1
|Terminal spike usually staminate; proximal spike longer than 1.5 cm; peduncle 1 cm or longer; perigynia ovoid to ellipsoid.
|[[#key-0-2| > 2]]
|-id=key-0-2
|2
|Pistillate scales pale red-brown; beak of perigynium green; proximal bract white at base; stipe 0.1–0.25 mm.
|[[Carex lenticularis var. lenticularis|Carex lenticularis var. lenticularis]]
|-id=key-0-2
|2
|Pistillate scales dark purple-brown or black; beak of perigynium purple-brown; proximal bract red-brown at base; stipe 0.1–0.7 mm.
|[[#key-0-3| > 3]]
|-id=key-0-3
|3
|Proximal spike 4–6 mm wide; stipe of perigynium 0.4–0.7 mm.
|[[Carex lenticularis var. limnophila|Carex lenticularis var. limnophila]]
|-id=key-0-3
|3
|Proximal spike 3–4 mm wide; stipe of perigynium 0.1–0.4 mm.
|[[#key-0-4| > 4]]
|-id=key-0-4
|4
|Perigynia spotted purple-brown on apical 1/2, 1–3-veined on abaxial face; beak entirely purple-brown.
|[[Carex lenticularis var. impressa|Carex lenticularis var. impressa]]
|-id=key-0-4
|4
|Perigynia not spotted purple-brown, 5–7-veined on each face; beak purple-brown at apex only.
|[[#key-0-5| > 5]]
|-id=key-0-5
|5
|Stipe of perigynium 0.2–0.5 mm; beak 0.1–0.5 mm; w North America.
|[[Carex lenticularis var. lipocarpa|Carex lenticularis var. lipocarpa]]
|-id=key-0-5
|5
|Stipe of perigynium 0.1–0.15 mm; beak 0.1–0.2 mm; e North America.
|[[Carex lenticularis var. lenticularis|Carex lenticularis var. lenticularis]]
|}
</div></div><!--

-->{{#Taxon:
name=Carex lenticularis
|authority=Michaux
|rank=species
|parent rank=section
|synonyms=
|basionyms=
|family=Cyperaceae
|distribution=Alta.;B.C.;Man.;N.B.;N.S.;N.W.T.;Ont.;P.E.I.;Que.;Sask.;Yukon;Alaska;Ariz.;Calif.;Colo.;Idaho;Maine;Mass.;Mich.;Minn.;Mont.;N.H.;N.Y.;Oreg.;Utah;Vt.;Wash.;Wis.;Wyo.
|reference=standley1987b
|publication title=Fl. Bor.-Amer.
|publication year=1803
|special status=Illustrated;Endemic
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V23/V23_694.xml
|genus=Carex
|section=Carex sect. Phacocystis
|species=Carex lenticularis
}}<!--

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[[Category:Treatment]]
[[Category:Carex sect. Phacocystis]]
[[Category:Revision Pending]]