View source for Tofieldia

{{Treatment/ID
|accepted_name=Tofieldia
|accepted_authority=Hudson
|publications={{Treatment/Publication
|title=Fl. Angl. ed.
|place=2, 157. 1778
|year=1778
}}
|common_names=False asphodel
|basionyms=
|synonyms=
|hierarchy=Liliaceae;Tofieldia
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Liliaceae]]</div><div class="higher-taxon"><small>genus</small>[[Tofieldia]]</div></div>
|etymology=for Thomas Tofield, 1730–1779, English botanist
|volume=Volume 26
|mention_page=page 11, 56, 58, 62
|treatment_page=page 60
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="whole_organism duration;whole_organism architecture;whole_organism pubescence;whole_organism growth form"><b>Herbs,</b> perennial, rhizomatous, glabrous.</span> <span class="statement" id="st-d0_s1" data-properties="stem architecture or shape;stem architecture or pubescence or relief;leaf quantity"><b>Stems </b>scapelike, sometimes with 1–3 leaves near base, smooth.</span> <span class="statement" id="st-d0_s2" data-properties="leaf arrangement;leaf arrangement"><b>Leaves </b>equitant, 2-ranked;</span> <span class="statement" id="st-d0_s3" data-properties="blade arrangement or course or shape">blade linear.</span> <span class="statement" id="st-d0_s4" data-properties="inflorescence position or structure subtype;inflorescence arrangement;inflorescence architecture;inflorescence density;inflorescence shape;inflorescence architecture;inflorescence architecture;inflorescence length"><b>Inflorescences </b>terminal, racemose, open to dense, sometimes spikelike, bracteate, sometimes bracteolate, elongating in fruit;</span> <span class="statement" id="st-d0_s5" data-properties="bracteole fusion">bracteoles connate in epicalyx.</span> <span class="statement" id="st-d0_s6" data-properties="flower position;flower arrangement"><b>Flowers </b>inserted singly;</span> <span class="statement" id="st-d0_s7" data-properties="tepal duration;tepal quantity;tepal fusion;series quantity">tepals persistent, 6, in 2 somewhat dissimilar series, distinct;</span> <span class="statement" id="st-d0_s8" data-properties="stamen quantity">stamens 6;</span> <span class="statement" id="st-d0_s9" data-properties="filament shape;filament shape">filaments dilated basally, strongly flattened (except T. coccinea);</span> <span class="statement" id="st-d0_s10" data-properties="anther fixation;anther architecture or structure in adjective form;anther dehiscence">anthers basifixed, 2-locular, introrse, without appendages;</span> <span class="statement" id="st-d0_s11" data-properties="ovary position;ovary architecture;ovary architecture;ovary pubescence">ovary superior, stipitate, apocarpous basally, glabrous;</span> <span class="statement" id="st-d0_s12" data-properties="intercarpellary nectary presence">intercarpellary nectary present;</span> <span class="statement" id="st-d0_s13" data-properties="style quantity">styles 3.</span> <span class="statement" id="st-d0_s14" data-properties="fruit architecture;fruit shape;fruit pubescence or texture;fruit pubescence;fruit dehiscence;fruit dehiscence"><b>Fruits </b>capsular, broadly ellipsoid to globose or obovoid, chartaceous, glabrous, dehiscence septicidal, then adaxially loculicidal.</span> <span class="statement" id="st-d0_s15" data-properties=""><b>Seeds </b>reddish-brown, without appendages.</span> <span class="statement" id="st-d0_s16" data-properties="seed coloration;x chromosome quantity">x = 15.</span><!--

-->{{Treatment/Body
|distribution=North America;Eurasia
|discussion=<p>Species 7 or 8 (3 in the flora).</p><!--
--><p>Following the example of J. G. Baker (1879) and R. R. Gates (1918), this treatment of Tofieldia excludes the species of sect. Triantha, which is recognized instead as a distinct genus; see J. G. Packer (1993). Tofieldia sometimes has been treated very broadly, to include not only Triantha but also Pleea (W. B. Zomlefer 1997c).</p>
|tables=
|references=
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Margins of bracts 3-lobed; bracteoles absent.
|[[Tofieldia pusilla|Tofieldia pusilla]]
|-id=key-0-1
|1
|Margins of bracts ± entire; bracteoles 3-lobed.
|[[#key-0-2| > 2]]
|-id=key-0-2
|2
|Stems 2–20 cm; inflorescences 0.5–2.5 cm; tepals 2–2.5 mm.
|[[Tofieldia coccinea|Tofieldia coccinea]]
|-id=key-0-2
|2
|Stems 25–90 cm; inflorescences 3–25 cm; tepals 3–4.5 mm.
|[[Tofieldia glabra|Tofieldia glabra]]
|}
</div></div><!--

-->{{#Taxon:
name=Tofieldia
|author=John G. Packer
|authority=Hudson
|rank=genus
|parent rank=family
|synonyms=
|basionyms=
|family=Liliaceae
|distribution=North America;Eurasia
|reference=None
|publication title=Fl. Angl. ed.
|publication year=1778
|special status=
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V26/V26_26.xml
|genus=Tofieldia
|anther architecture or structure in adjective form=2-locular
|anther dehiscence=introrse
|anther fixation=basifixed
|blade arrangement or course or shape=linear
|bracteole fusion=connate
|filament shape=flattened;dilated
|flower arrangement=singly
|flower position=inserted
|fruit architecture=capsular
|fruit dehiscence=loculicidal;septicidal
|fruit pubescence=glabrous
|fruit pubescence or texture=chartaceous
|fruit shape=broadly ellipsoid;globose or obovoid
|inflorescence architecture=bracteolate;bracteate;open
|inflorescence arrangement=racemose
|inflorescence density=dense
|inflorescence length=elongating
|inflorescence position or structure subtype=terminal
|inflorescence shape=spikelike
|intercarpellary nectary presence=absent
|leaf arrangement=2-ranked;equitant
|leaf quantity=1;3
|ovary architecture=apocarpous;stipitate
|ovary position=superior
|ovary pubescence=glabrous
|seed coloration=reddish-brown
|series quantity=2
|stamen quantity=6
|stem architecture or pubescence or relief=smooth
|stem architecture or shape=scapelike
|style quantity=3
|tepal duration=persistent
|tepal fusion=distinct
|tepal quantity=6
|whole_organism architecture=rhizomatous
|whole_organism duration=perennial
|whole_organism growth form=herb
|whole_organism pubescence=glabrous
|x chromosome quantity=15
}}<!--

-->[[Category:Treatment]][[Category:Liliaceae]]