View source for Linum sect. Linum

{{Treatment/ID
|accepted_name=Linum sect. Linum
|accepted_authority=
|publications=
|basionyms=
|synonyms=
|hierarchy=Linaceae;Linum;Linum sect. Linum
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Linaceae]]</div><div class="higher-taxon"><small>genus</small>[[Linum]]</div><div class="higher-taxon"><small>section</small>[[Linum sect. Linum]]</div></div>
|volume=Volume 12
|mention_page=
|treatment_page=page 373
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="whole_organism duration;whole_organism duration;whole_organism duration;whole_organism duration;whole_organism duration;whole_organism growth form"><b>Herbs,</b> annual, biennial, or perennial.</span> <span class="statement" id="st-d0_s1" data-properties="stem shape"><b>Stems </b>usually terete (ridged in L. grandiflorum).</span> <span class="statement" id="st-d0_s2" data-properties="leaf arrangement"><b>Leaves </b>alternate;</span> <span class="statement" id="st-d0_s3" data-properties="stipular gland presence">stipular glands absent;</span> <span class="statement" id="st-d0_s4" data-properties="blade margin architecture or shape;blade margin shape">blade margins entire, not glandular-toothed.</span> <span class="statement" id="st-d0_s5" data-properties="flower architecture;flower architecture"><b>Flowers </b>homostylous or heterostylous;</span> <span class="statement" id="st-d0_s6" data-properties="sepal duration;margin texture;margin architecture or shape;margin shape">sepals persistent, margins scarious, entire, not glandular-toothed;</span> <span class="statement" id="st-d0_s7" data-properties="petal coloration;petal coloration">petals usually blue or red to maroon, rarely white;</span> <span class="statement" id="st-d0_s8" data-properties="staminodium presence;staminodium presence">staminodia present or absent;</span> <span class="statement" id="st-d0_s9" data-properties="style fusion;style fusion;style position">styles distinct, connate basally or to midlength;</span> <span class="statement" id="st-d0_s10" data-properties="stigma shape;stigma shape;stigma shape;stigma shape;stigma shape">stigmas capitate, clavate, or linear.</span> <span class="statement" id="st-d0_s11" data-properties="capsule dehiscence;segment quantity;segment architecture"><b>Capsules </b>dehiscing into 10, 1-seeded segments;</span> <span class="statement" id="st-d0_s12" data-properties="false septum architecture">false septa incomplete.</span> <span class="statement" id="st-d0_s13" data-properties="pollen architecture"><b>Pollen </b>tricolpate.</span><!--

-->{{Treatment/Body
|distribution=North America;Mexico;Eurasia;n Africa;Pacific Islands (New Zealand);Australia;in s South America
|discussion=<p>Species ca. 50 (6 in the flora).</p>
|tables=
|references={{Treatment/Reference
|id=mosquin1971a
|text=Mosquin, T. 1971. Biosystematic studies in the North American species of Linum, section Adenolinum (Linaceae). Canad. J. Bot. 49: 1379–1388.
}}
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Petals bright red to maroon, fading to purple.
|[[Linum grandiflorum|Linum grandiflorum]]
|-id=key-0-1
|1
|Petals usually blue, rarely white.
|[[#key-0-2| > 2]]
|-id=key-0-2
|2
|Stigmas linear or clavate; margins of inner sepals minutely ciliate.
|[[#key-0-3| > 3]]
|-id=key-0-3
|3
|Annuals; petals 10–15 mm; capsules 6–10 mm, apices rounded; seeds 4–6 mm.
|[[Linum usitatissimum|Linum usitatissimum]]
|-id=key-0-3
|3
|Biennials or short-lived perennials; petals 6–10 mm; capsules 4–6 mm, apices very sharp-pointed; seeds 2.5–3 mm.
|[[Linum bienne|Linum bienne]]
|-id=key-0-2
|2
|Stigmas capitate or ellipsoid-capitate, margins of inner sepals glabrous.
|[[#key-0-4| > 4]]
|-id=key-0-4
|4
|Flowers heterostylous.
|[[Linum perenne|Linum perenne]]
|-id=key-0-4
|4
|Flowers homostylous.
|[[#key-0-5| > 5]]
|-id=key-0-5
|5
|Perennials; styles 2–12 mm, capsule apices acute.
|[[Linum lewisii|Linum lewisii]]
|-id=key-0-5
|5
|Annuals; styles 1–3 mm; capsule apices obtuse.
|[[Linum pratense|Linum pratense]]
|}
</div></div><!--

-->{{#Taxon:
name=Linum sect. Linum
|authority=
|rank=section
|parent rank=genus
|synonyms=
|basionyms=
|family=Linaceae
|distribution=North America;Mexico;Eurasia;n Africa;Pacific Islands (New Zealand);Australia;in s South America
|reference=mosquin1971a
|publication title=
|publication year=
|special status=
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V12/V12_135.xml
|genus=Linum
|section=Linum sect. Linum
|blade margin architecture or shape=entire
|blade margin shape=not glandular-toothed
|capsule dehiscence=dehiscing
|false septum architecture=incomplete
|flower architecture=heterostylous;homostylous
|leaf arrangement=alternate
|margin architecture or shape=entire
|margin shape=not glandular-toothed
|margin texture=scarious
|petal coloration=white;red;maroon
|pollen architecture=tricolpate
|segment architecture=1-seeded
|segment quantity=10
|sepal duration=persistent
|staminodium presence=absent;absent
|stem shape=terete
|stigma shape=linear;clavate;linear;clavate;capitate
|stipular gland presence=absent
|style fusion=connate;distinct
|style position=midlength
|whole_organism duration=perennial;biennial;perennial;biennial;annual
|whole_organism growth form=herb
}}<!--

-->[[Category:Treatment]][[Category:Linum]]